Biological data measurement system for pregnant women

• US 20060217630A1
• Filed: 03/27/2006
• Published: 09/28/2006
• Est. Priority Date: 03/28/2005
• Status: Active Grant

• Current Assignee: Tanita Corporation (Tanita)
• Original Assignee: Tanita Corporation (Tanita)
• Inventors: Ueda, Yasuo, Maruo, Motoyoshi, Ashitaka, Yoshihiko, Takehara, Tomoko, Honda, Yuka
• Granted Patent: US 7,195,600 B2
• Time in Patent Office: Days
• US Class Current: 600/547
• CPC Class Codes: A61B 5/0537 Measuring body composition by impedance, e.g. tissue hydration or fat content
• CPC Class Codes: G16H 20/60 relating to nutrition control, e.g. diets

Abstract

Disclosed is a maternity biodata measurement system, wherein a sum of a pre-pregnancy energy expenditure and a pregnancy extra energy amount of a subject is determined as an energy amount necessary for the subject in a pregnancy period. In particular, the pregnancy extra energy amount is determined based on pre-pregnancy body-mass index data and elapsed pregnancy-period data about the subject, so as to allow the necessary energy amount to be determined as a value appropriate for the subject. The maternity biodata measurement system of the present invention makes it possible to measure a necessary energy amount for a pregnant woman on an individual basis.

Claims

1. A maternity biodata measurement system for measuring biodata of a pregnant woman who is a subject, comprising:

pre-pregnancy energy-expenditure determination means for determining an energy expenditure of the subject in a pre-pregnancy state;

pregnancy extra-energy-amount determination means for determining a suitable extra energy expenditure to be added to said pre-pregnancy energy expenditure due to pregnancy; and

pregnancy necessary-energy-amount determination means for determining a sum of said pre-pregnancy energy expenditure and said pregnancy extra energy amount, as an energy amount necessary for the subject in a pregnancy period,

wherein said pregnancy extra-energy-amount determination means includes;

pre-pregnancy body-mass-index data acquisition means for acquiring data about body-mass index of the subject in the pre-pregnancy state;

elapsed-pregnancy-period data acquisition means for acquiring data about elapsed period from the pregnancy of the subject; and

pregnancy extra-energy-amount estimation means for estimating said pregnancy extra energy amount based on said pre-pregnancy body-mass index data and said elapsed pregnancy-period data.

2. The maternity biodata measurement system as defined in claim 1, wherein said pregnancy extra-energy-amount estimation means includes:

estimation-equation storage means for storing a plurality of estimation equations for calculating the pregnancy extra energy amount using elapsed pregnancy-period data as a parameter, in association with pre-pregnancy body-mass index data;

estimation-equation selection means for selecting one of said estimation equations corresponding to said acquired pre-pregnancy body-mass index data; and

estimation-equation execution means for assigning said acquired elapsed pregnancy-period data to said selected estimation equation to calculate said pregnancy extra energy amount.

3. The maternity biodata measurement system as defined in claim 1, wherein said pre-pregnancy energy-expenditure determination means includes:

pre-pregnancy basal-metabolism data acquisition means for acquiring data about basal metabolism of the subject in the pre-pregnancy state;

daily-activity-intensity data acquisition means for acquiring data about daily activity intensity of the subject; and

pre-pregnancy energy-expenditure estimation means for estimating the pre-pregnancy energy expenditure based on said pre-pregnancy basal metabolism data and said daily activity intensity data.

4. The maternity biodata measurement system as defined in claim 2, wherein said pre-pregnancy energy-expenditure determination means includes:

pre-pregnancy basal-metabolism data acquisition means for acquiring data about basal metabolism of the subject in the pre-pregnancy state;

daily-activity-intensity data acquisition means for acquiring data about daily activity intensity of the subject; and

pre-pregnancy energy-expenditure estimation means for estimating the pre-pregnancy energy expenditure based on said pre-pregnancy basal metabolism data and said daily activity intensity data.

5. The maternity biodata measurement system as defined in claim 4, wherein said pre-pregnancy basal-metabolism data acquisition means includes:

pre-pregnancy age data acquisition means for acquiring data about age of the subject in the pre-pregnancy state;

pre-pregnancy fat-free-mass data acquisition means for acquiring data about fat-free mass of the subject in the pre-pregnancy state; and

pre-pregnancy basal-metabolism data calculation means for calculating the pre-pregnancy basal metabolism data based on said pre-pregnancy age data and said pre-pregnancy fat-free mass data.

6. The maternity biodata measurement system as defined in claim 5, wherein said pre-pregnancy fat-free-mass data acquisition means includes:

pre-pregnancy body-weight data acquisition means for acquiring data about body weight of the subject in the pre-pregnancy state;

pre-pregnancy fat-mass data acquisition means for acquiring data about fat mass of the subject in the pre-pregnancy state; and

pre-pregnancy fat-fee-mass calculation means for calculating the pre-pregnancy fat-free mass data based on said pre-pregnancy body weight data and said pre-pregnancy fat mass data.

7. The maternity biodata measurement system as defined in claim 6, wherein said pre-pregnancy fat-mass data acquisition means includes:

maternal fat-mass data acquisition means for acquiring data about maternal fat mass of the subject;

body-fat-increment data acquisition means for acquiring data about body-fat increment of the subject in the pregnancy period; and

pre-pregnancy fat-mass data calculation means for calculating the pre-pregnancy fat mass data based on said maternal fat mass data and said body-fat increment data.

8. The maternity biodata measurement system as defined in claim 7, wherein said maternal fat-mass data acquisition means includes:

body-weight data acquisition means for acquiring data about current body weight of the subject;

fetal-region-weight data acquisition means for acquiring data about fetal-region weight in the subject;

maternal-weight data calculation means for calculating data about maternal weight of the subject based on said current body weight data and said fetal-region weight data;

body-height data acquisition means for acquiring data about body height of the subject;

impedance data acquisition means for acquiring data about body impedance of the subject; and

maternal fat-mass data calculation means for calculating the maternal fat mass data based on said maternal weight data, said body height data and said impedance data.

9. The maternity biodata measurement system as defined in claim 8, wherein said fetal-region-weight data acquisition means includes fetal-region-weight data determination means for determining the fetal-region weight data based on the elapsed pregnancy-period data acquired by said elapsed-pregnancy-period data acquisition means.

10. The maternity biodata measurement system as defined in claim 7, wherein said body-fat-increment data acquisition means includes:

body-weight-increment data acquisition means for acquiring data about body-weight increment of the subject in the pregnancy period; and

body-fat-increment data determination means for determining a value obtained by multiplying said body-weight increment data by a predetermined rate, as the body-fat increment data.

11. The maternity biodata measurement system as defined in claim 9, wherein said body-fat-increment data acquisition means includes:

body-weight-increment data acquisition means for acquiring data about body-weight increment of the subject in the pregnancy period; and

body-fat-increment data determination means for determining a value obtained by multiplying said body-weight increment data by a predetermined rate, as the body-fat increment data.

12. The maternity biodata measurement system as defined in claim 11, wherein said body-weight-increment data acquisition means includes:

body-weight data acquisition means for acquiring data about current body weight of the subject; and

body-weight-increment data calculation means for calculating the body-weight increment data based on said current body weight data and the pre-pregnancy body weight data acquired by said pre-pregnancy body-weight data acquisition means.

14. The maternity biodata measurement system as defined in claim 1, which further includes:

basal-metabolism-increment determination means for determining an increment of basal metabolism of the subject in the pregnancy period;

increased-tissue-required energy-amount determination means for determining an energy amount required for increased tissue of the subject due to the pregnancy;

pregnancy intake-energy-amount determination means for determining a sum of said increment of basal metabolism, said increased-tissue-required energy amount, and the pre-pregnancy energy-expenditure determined by said pre-pregnancy energy-expenditure determination means, as an energy amount which is actually taken by the subject in the pregnancy period; and

intake-energy excess/deficiency data output means for outputting data about excess and deficiency in intake energy amount of the subject based on said pregnancy intake energy amount and the pregnancy necessary energy amount determined by said pregnancy necessary-energy-amount determination means,

wherein said increased-tissue-required energy-amount determination means includes;

said elapsed-pregnancy-period data acquisition means;

body-fat-increment data acquisition means for acquiring data about body-fat increment of the subject in the pregnancy period; and

increased-tissue-required energy-amount estimation means for estimating the increased-tissue-required energy amount based on said elapsed pregnancy-period data and said body-fat increment data.

15. The maternity biodata measurement system as defined in claim 1, which further includes:

basal-metabolism data acquisition means for acquiring data about current basal metabolism of the subject;

daily-activity-intensity data acquisition means for acquiring data about daily activity intensity of the subject;

increased-fat-tissue-required energy-amount determination means for determining an energy amount required for increased maternal fat-tissue of the subject due to the pregnancy;

pregnancy intake-energy-amount determination means for determining an energy amount which is actually taken by the subject in the pregnancy period, based on said basal metabolism data, said daily activity intensity data, and said increased-fat-tissue-required energy amount; and

intake-energy excess/deficiency data output means for outputting data about excess and deficiency in intake energy amount of the subject based on said pregnancy intake energy amount and the pregnancy necessary energy amount determined by said pregnancy necessary-energy-amount determination means,

wherein said increased-fat-tissue-required energy-amount determination means includes;

said elapsed-pregnancy-period data acquisition means;

body-fat-increment data acquisition means for acquiring data about body-fat increment of the subject in the pregnancy period; and

increased-tissue-required energy-amount estimation means for estimating the increased-tissue-required energy amount based on said elapsed pregnancy-period data and said body-fat increment data.

16. The maternity biodata measurement system as defined in claim 14, wherein said increased-tissue-required energy-amount estimation means includes:

first estimation-equation storage means for storing an estimation equations for calculating first energy amount data using elapsed pregnancy-period data as a parameter;

first estimation-equation execution means for assigning said acquired elapsed pregnancy-period data to said first estimation equation to calculate said first energy amount data;

second estimation-equation storage means for storing an estimation equations for calculating second energy amount data using body-fat increment data as a parameter;

second estimation-equation execution means for assigning said acquired body-fat increment data to said second estimation equation to calculate said second energy amount data; and

increased-tissue-required energy-amount calculation means for calculating the increased-tissue-required energy amount based on said acquired elapsed pregnancy-period data and a sum of said first energy amount data and said second energy amount data.

17. The maternity biodata measurement system as defined in claim 14, wherein said body-fat-increment data acquisition means includes:

body-weight-increment data acquisition means for acquiring data about body-weight increment of the subject in the pregnancy period; and

body-fat-increment data determination means for determining a value obtained by multiplying said body-weight increment data by a predetermined rate, as the body-fat increment data.

18. The maternity biodata measurement system as defined in claim 17, wherein said body-weight-increment data acquisition means includes:

body-weight data acquisition means for acquiring data about current body weight of the subject;

pre-pregnancy body-weight data acquisition means for acquiring data about body weight of the subject in the pre-pregnancy state; and

body-weight-increment data calculation means for calculating the body-weight increment data based on said current body weight data and said pre-pregnancy body weight data.

19. The maternity biodata measurement system as defined in claim 14, wherein said basal-metabolism-increment determination means includes:

basal-metabolism data acquisition means for acquiring data about current basal metabolism of the subject;

pre-pregnancy basal-metabolism data acquisition means for acquiring data about basal metabolism of the subject in the pre-pregnancy state; and

basal-metabolism-increment calculation means for calculating the increment of basal metabolism based on said current basal metabolism data and said pre-pregnancy basal metabolism data.

20. The maternity biodata measurement system as defined in claim 19, wherein said basal-metabolism data acquisition means includes:

age data acquisition means for acquiring data about age of the subject;

fetal-region-weight data acquisition means for acquiring data about fetal-region weight in the subject;

maternal fat-free-mass data acquisition means for acquiring data about maternal fat-free mass of the subject; and

basal-metabolism calculation means for calculating the basal metabolism data based on said age data, said fetal-region weight data and said maternal fat-free mass data.

21. The maternity biodata measurement system as defined in claim 20, wherein said maternal fat-free-mass data acquisition means includes:

body-weight data acquisition means for acquiring data about current body weight of the subject;

maternal-weight data calculation means for calculating data about maternal weight of the subject based on said current body weight data and the fetal-region weight data acquired by said fetal-region-weight data acquisition means;

body-height data acquisition means for acquiring data about body height of the subject;

impedance data acquisition means for acquiring data about body impedance of the subject; and

maternal fat-free-mass data calculation means for calculating the maternal fat-free mass data based on said maternal weight data, said body height data and said impedance data.

22. The maternity biodata measurement system as defined in claim 20, wherein said fetal-region-weight data acquisition means includes fetal-region-weight data determination means for determining the fetal-region weight data based on the elapsed pregnancy-period data acquired by said elapsed-pregnancy-period data acquisition means.

23. The maternity biodata measurement system as defined in claim 19, wherein said pre-pregnancy basal-metabolism data acquisition means includes:

pre-pregnancy age data acquisition means for acquiring data about age of the subject in the pre-pregnancy state;

pre-pregnancy fat-free-mass data acquisition means for acquiring data about fat-free mass of the subject in the pre-pregnancy state; and

pre-pregnancy basal-metabolism data calculation means for calculating the pre-pregnancy basal metabolism data based on said pre-pregnancy age data and said pre-pregnancy fat-free mass data.

24. The maternity biodata measurement system as defined in claim 23, wherein said pre-pregnancy fat-free-mass data acquisition means includes:

pre-pregnancy body-weight data acquisition means for acquiring data about body weight of the subject in the pre-pregnancy state;

pre-pregnancy fat-mass data acquisition means for acquiring data about fat mass of the subject in the pre-pregnancy state; and

pre-pregnancy fat-fee-mass calculation means for calculating the pre-pregnancy fat-free mass data based on said pre-pregnancy body weight data and said pre-pregnancy fat mass data.

25. The maternity biodata measurement system as defined in claim 24, wherein said pre-pregnancy fat-mass data acquisition means includes:

maternal fat-mass data acquisition means for acquiring data about maternal fat-mass of the subject;

body-fat-increment data acquisition means for acquiring data about body-fat increment of the subject in the pregnancy period; and

pre-pregnancy fat-mass-data calculation means for calculating the pre-pregnancy fat mass data based on said maternal fat mass data and said body-fat increment data.

26. The maternity biodata measurement system as defined in claim 25, wherein said maternal fat-mass data acquisition means includes:

body-weight data acquisition means for acquiring data about current body weight of the subject;

fetal-region-weight data acquisition means for acquiring data about fetal-region weight in the subject;

maternal-weight data calculation means for calculating data about maternal weight of the subject based on said current body weight data and said fetal-region weight data;

body-height data acquisition means for acquiring data about body height of the subject;

impedance data acquisition means for acquiring data about body impedance of the subject; and

maternal fat-mass data calculation means for calculating the maternal fat mass data based on said maternal weight data, said body height data and said impedance data.

27. The maternity biodata measurement system as defined in claim 26, wherein said fetal-region-weight data acquisition means includes fetal-region-weight data determination means for determining the fetal-region weight data based on the elapsed pregnancy-period data acquired by said elapsed-pregnancy-period data acquisition means.

28. The maternity biodata measurement system as defined in claim 25, wherein said body-fat-increment data acquisition means includes:

body-weight-increment data acquisition means for acquiring data about body-weight increment of the subject in the pregnancy period; and

body-fat-increment data determination means for determining a value obtained by multiplying said body-weight increment data by a predetermined rate, as the body-fat increment data.

29. The maternity biodata measurement system as defined in claim 27, wherein said body-weight-increment data acquisition means includes:

body-weight data acquisition means for acquiring data about current body weight of the subject; and

body-weight-increment data calculation means for calculating the body-weight increment data based on said current body weight data and the pre-pregnancy body weight data acquired by said pre-pregnancy body-weight data acquisition means.

30. The maternity biodata measurement system as defined in claim 14, wherein said pre-pregnancy energy-expenditure determination means includes:

pre-pregnancy basal-metabolism data acquisition means for acquiring data about basal metabolism of the subject in the pre-pregnancy state;

daily-activity-intensity data acquisition means for acquiring data about daily activity intensity of the subject; and

pre-pregnancy energy-expenditure estimation means for estimating the pre-pregnancy energy expenditure based on said pre-pregnancy basal metabolism data and said daily activity intensity data.

31. The maternity biodata measurement system as defined in claim 30, wherein said pre-pregnancy basal-metabolism data acquisition means includes:

pre-pregnancy age data acquisition means for acquiring data about age of the subject in the pre-pregnancy state;

pre-pregnancy fat-free-mass data acquisition means for acquiring data about fat-free mass of the subject in the pre-pregnancy state; and

pre-pregnancy basal-metabolism data calculation means for calculating the pre-pregnancy basal metabolism data based on said pre-pregnancy age data and said pre-pregnancy fat-free mass data.

32. The maternity biodata measurement system as defined in claim 31, wherein said pre-pregnancy fat-free-mass data acquisition means includes;

pre-pregnancy body-weight data acquisition means for acquiring data about body weight of the subject in the pre-pregnancy state;

pre-pregnancy fat-mass data acquisition means for acquiring data about fat-mass of the subject in the pre-pregnancy state; and

pre-pregnancy fat-fee-mass calculation means for calculating the pre-pregnancy fat-free mass data based on said pre-pregnancy body weight data and said pre-pregnancy fat mass data.

33. The maternity biodata measurement system as defined in claim 32, wherein said pre-pregnancy fat-mass data acquisition means includes:

maternal-fat-mass data acquisition means for acquiring data about maternal fat mass of the subject;

body-fat-increment data acquisition means for acquiring data about body-fat increment of the subject in the pregnancy period; and

pre-pregnancy fat-mass data calculation means for calculating the pre-pregnancy fat mass data based on said maternal fat mass data and said body-fat increment data.

34. The maternity biodata measurement system as defined in claim 33, wherein said maternal fat-mass data acquisition means includes:

body-weight data acquisition means for acquiring data about current body weight of the subject;

fetal-region-weight data acquisition means for acquiring data about fetal-region weight in the subject;

maternal-weight data calculation means for calculating data about maternal weight of the subject based on said current body weight data and said fetal-region weight data;

body-height data acquisition means for acquiring data about body height of the subject;

impedance data acquisition means for acquiring data about body impedance of the subject; and

maternal fat-mass data calculation means for calculating the maternal fat mass data based on said maternal weight data, said body height data and said impedance data.

35. The maternity biodata measurement system as defined in claim 34, wherein said fetal-region-weight data acquisition means includes fetal-region-weight data determination means for determining the fetal-region weight data based on the elapsed pregnancy-period data acquired by said elapsed-pregnancy-period data acquisition means.

36. The maternity biodata measurement system as defined in claim 33, wherein said body-fat-increment data acquisition means includes:

body-weight-increment data acquisition means for acquiring data about body-weight increment of the subject in the pregnancy period; and

body-fat-increment data determination means for determining a value obtained by multiplying said body-weight increment data by a predetermined rate, as the body-fat increment data.

37. The maternity biodata measurement system as defined in claim 36, wherein said body-weight-increment data acquisition means includes:

body-weight data acquisition means for acquiring data about current body weight of the subject; and

body-weight-increment data calculation means for calculating the body-weight increment data based on said current body weight data and the pre-pregnancy body weight data acquired by said pre-pregnancy body-weight data acquisition means.

38. The maternity biodata measurement system as defined in claim 15, wherein said increased-fat-tissue-required energy-amount estimation means includes:

estimation-equation storage means for storing an estimation equation for calculating data about energy amount required for an increased fat tissue due to the pregnancy, using body-fat increment data as a parameter;

estimation-equation execution means for assigning said acquired body-fat increment data to said estimation equation to calculate said energy amount data required for the increased fat tissue due to the pregnancy; and

increased-fat-tissue-required energy-amount calculation means for calculating the increased-fat-tissue-required energy amount based on said calculated energy amount data and said acquired elapsed pregnancy-period data.

39. The maternity biodata measurement system as defined in claim 15, wherein said body-fat-increment data acquisition means includes:

body-weight-increment data acquisition means for acquiring data about body-weight increment of the subject in the pregnancy period; and

body-fat-increment data determination means for determining a value obtained by multiplying said body-weight increment data by a predetermined rate, as the body-fat increment data.

40. The maternity biodata measurement system as defined in claim 39, wherein said body-weight-increment data acquisition means includes:

body-weight data acquisition means for acquiring data about current body weight of the subject; and

body-weight-increment data calculation means for calculating the body-weight increment data based on said current body weight data and pre-pregnancy body weight data.

41. The maternity biodata measurement system as defined in claim 15, wherein said basal-metabolism data acquisition means includes:

age data acquisition means for acquiring data about age of the subject;

fetal-region-weight data acquisition means for acquiring data about fetal-region weight in the subject;

maternal fat-free-mass data acquisition means for acquiring data about maternal fat-free mass of the subject; and

basal-metabolism calculation means for calculating the basal metabolism data based on said age data, said fetal-region weight data and said maternal fat-free mass data.

42. The maternity biodata measurement system as defined in claim 41, wherein said maternal fat-free-mass data acquisition means includes:

body-weight data acquisition means for acquiring data about current body weight of the subject;

maternal-weight data calculation means for calculating data about maternal weight of the subject based on said current body weight data and the fetal-region weight data acquired by said fetal-region-weight data acquisition means;

body-height data acquisition means for acquiring data about body height of the subject;

impedance data acquisition means for acquiring data about body impedance of the subject; and

maternal fat-free-mass data calculation means for calculating the maternal fat-free mass data based on said maternal weight data, said body height data and said impedance data.

43. The maternity biodata measurement system as defined in claim 41, wherein said fetal-region-weight data acquisition means includes fetal-region-weight data determination means for determining the fetal-region weight data based on the elapsed pregnancy-period data acquired by said elapsed-pregnancy-period data acquisition means.

13. The maternity biodata measurement system as defined in 1, which further includes:

pregnancy intake energy amount determination means for determining an energy amount which is actually taken by the subject in the pregnancy period; and

intake-energy excess/deficiency data output means for outputting data about excess and deficiency in intake energy amount of the subject based on said pregnancy intake energy amount and the pregnancy necessary energy amount determined by said pregnancy necessary-energy-amount determination means.

44. A maternity biodata measurement system for measuring biodata of a pregnant woman who is a subject, comprising:

pre-pregnancy energy-expenditure determination means for determining an energy expenditure of the subject in a pre-pregnancy state;

basal-metabolism-increment determination means for determining an increment of basal metabolism of the subject in the pregnancy period;

increased-tissue-required energy-amount determination means for determining an energy amount required for increased tissue of the subject due to the pregnancy;

pregnancy intake-energy-amount determination means for determining a sum of said pre-pregnancy energy expenditure, said increment of basal metabolism, and said increased-tissue-required energy amount, as an energy amount which is actually taken by the subject in the pregnancy period,

wherein said increased-tissue-required energy-amount determination means includes;

elapsed-pregnancy-period data acquisition means for acquiring data about elapsed period from the pregnancy of the subject;

body-fat-increment data acquisition means for acquiring data about body-fat increment of the subject in the pregnancy period; and

increased-tissue-required energy-amount estimation means for estimating the increased-tissue-required energy amount based on said elapsed pregnancy-period data and said body-fat increment data.

45. The maternity biodata measurement system as defined in claim 44, wherein said increased-tissue-required energy-amount estimation means includes:

first estimation-equation storage means for storing an estimation equations for calculating first energy amount data using elapsed pregnancy-period data as a parameter;

first estimation-equation execution means for assigning said acquired elapsed pregnancy-period data to said first estimation equation to calculate said first energy amount data;

second estimation-equation storage means for storing an estimation equations for calculating second energy amount data using body-fat increment data as a parameter;

second estimation-equation execution means for assigning said acquired body-fat increment data to said second estimation equation to calculate said second energy amount data; and

increased-tissue-required energy-amount calculation means for calculating the increased-tissue-required energy amount based on said acquired elapsed pregnancy-period data and a sum of said first energy amount data and said second energy amount data.

46. The maternity biodata measurement system as defined in claim 44, wherein said body-fat-increment data acquisition means includes:

body-weight-increment data acquisition means for acquiring data about body-weight increment of the subject in the pregnancy period; and

body-fat-increment data determination means for determining a value obtained by multiplying said body-weight increment data by a predetermined rate, as the body-fat increment data.

47. The maternity biodata measurement system as defined in claim 46, wherein said body-weight-increment data acquisition means includes:

body-weight data acquisition means for acquiring data about current body weight of the subject;

pre-pregnancy body-weight data acquisition means for acquiring data about body weight of the subject in the pre-pregnancy state; and

body-weight-increment data calculation means for calculating the body-weight increment data based on said current body weight data and said pre-pregnancy body weight data.

48. The maternity biodata measurement system as defined in claim 44, wherein said basal-metabolism-increment determination means includes:

basal-metabolism data acquisition means for acquiring data about current basal metabolism of the subject;

pre-pregnancy basal-metabolism data acquisition means for acquiring data about basal metabolism of the subject in the pre-pregnancy state; and

basal-metabolism-increment calculation means for calculating the increment of basal metabolism based on said current basal metabolism data and said pre-pregnancy basal metabolism data.

49. The maternity biodata measurement system as defined in claim 48, wherein said basal-metabolism data acquisition means includes:

age data acquisition means for acquiring data about age of the subject;

fetal-region-weight data acquisition means for acquiring data about fetal-region weight in the subject;

maternal fat-free-mass data acquisition means for acquiring data about maternal fat-free mass of the subject; and

basal-metabolism calculation means for calculating the basal metabolism data based on said age data, said fetal-region weight data and said maternal fat-free mass data.

50. The maternity biodata measurement system as defined in claim 49, wherein said maternal fat-free-mass data acquisition means includes:

body-weight data acquisition means for acquiring data about current body weight of the subject;

maternal-weight data calculation means for calculating data about maternal weight of the subject based on said current body weight data and the fetal-region weight data acquired by said fetal-region-weight data acquisition means;

body-height data acquisition means for acquiring data about body height of the subject;

impedance data acquisition means for acquiring data about body impedance of the subject; and

maternal fat-free-mass data calculation means for calculating the maternal fat-free mass data based on said maternal weight data, said body height data and said impedance data.

51. The maternity biodata measurement system as defined in claim 49, wherein said fetal-region-weight data acquisition means includes fetal-region-weight-data determination means for determining the fetal-region weight data based on the elapsed pregnancy-period data acquired by said elapsed-pregnancy-period data acquisition means.

52. The maternity biodata measurement system as defined in claim 48, wherein said pre-pregnancy basal-metabolism data acquisition means includes:

pre-pregnancy age data acquisition means for acquiring data about age of the subject in the pre-pregnancy state;

pre-pregnancy fat-free-mass data acquisition means for acquiring data about fat-free mass of the subject in the pre-pregnancy state; and

pre-pregnancy basal-metabolism data calculation means for calculating the pre-pregnancy basal metabolism data based on said pre-pregnancy age data and said pre-pregnancy fat-free mass data.

53. The maternity biodata measurement system as defined in claim 52, wherein said pre-pregnancy fat-free-mass data acquisition means includes:

pre-pregnancy body-weight data acquisition means for acquiring data about body weight of the subject in the pre-pregnancy state;

pre-pregnancy fat-mass data acquisition means for acquiring data about fat mass of the subject in the pre-pregnancy state; and

pre-pregnancy fat-fee-mass calculation means for calculating the pre-pregnancy fat-free mass data based on said pre-pregnancy body weight data and said pre-pregnancy fat mass data.

54. The maternity biodata measurement system as defined in claim 53, wherein said pre-pregnancy fat-mass data acquisition means includes:

maternal fat-mass data acquisition means for acquiring data about maternal fat-mass of the subject;

body-fat-increment data acquisition means for acquiring data about body-fat increment of the subject in the pregnancy period; and

pre-pregnancy fat-mass-data calculation means for calculating the pre-pregnancy fat mass data based on said maternal fat mass data and said body-fat increment data.

55. The maternity biodata measurement system as defined in claim 54, wherein said maternal fat-mass data acquisition means includes:

body-weight data acquisition means for acquiring data about current body weight of the subject;

fetal-region-weight data acquisition means for acquiring data about fetal-region weight in the subject;

maternal-weight data calculation means for calculating data about maternal weight of the subject based on said current body weight data and said fetal-region weight data;

body-height data acquisition means for acquiring data about body height of the subject;

impedance data acquisition means for acquiring data about body impedance of the subject; and

maternal fat-mass data calculation means for calculating the maternal fat mass data based on said maternal weight data, said body height data and said impedance data.

56. The maternity biodata measurement system as defined in claim 55, wherein said fetal-region-weight data acquisition means includes fetal-region-weight-data determination means for determining the fetal-region weight data based on the elapsed pregnancy-period data acquired by said elapsed-pregnancy-period data acquisition means.

57. The maternity biodata measurement system as defined in claim 54, wherein said body-fat-increment data acquisition means includes:

body-weight-increment data acquisition means for acquiring data about body-weight increment of the subject in the pregnancy period; and

body-fat-increment data determination means for determining a value obtained by multiplying said body-weight increment data by a predetermined rate, as the body-fat increment data.

58. The maternity biodata measurement system as defined in claim 57, wherein said body-weight-increment data acquisition means includes:

body-weight data acquisition means for acquiring data about current body weight of the subject; and

body-weight-increment data calculation means for calculating the body-weight increment data based on said current body weight data and the pre-pregnancy body weight data acquired by said pre-pregnancy body-weight data acquisition means.

59. The maternity biodata measurement system as defined in claim 44, wherein said pre-pregnancy energy-expenditure determination means includes:

pre-pregnancy basal-metabolism data acquisition means for acquiring data about basal metabolism of the subject in the pre-pregnancy state;

daily-activity-intensity data acquisition means for acquiring data about daily activity intensity of the subject; and

pre-pregnancy energy-expenditure estimation means for estimating the pre-pregnancy energy expenditure based on said pre-pregnancy basal metabolism data and said daily activity intensity data.

60. The maternity biodata measurement system as defined in claim 59, wherein said pre-pregnancy basal-metabolism data acquisition means includes:

pre-pregnancy age data acquisition means for acquiring data about age of the subject in the pre-pregnancy state;

pre-pregnancy fat-free-mass data acquisition means for acquiring data about fat-free mass of the subject in the pre-pregnancy state; and

pre-pregnancy basal-metabolism data calculation means for calculating the pre-pregnancy basal metabolism data based on said pre-pregnancy age data and said pre-pregnancy fat-free mass data.

61. The maternity biodata measurement system as defined in claim 60, wherein said pre-pregnancy fat-free-mass data acquisition means includes;

pre-pregnancy body-weight data acquisition means for acquiring data about body weight of the subject in the pre-pregnancy state;

pre-pregnancy fat-mass data acquisition means for acquiring data about fat-mass of the subject in the pre-pregnancy state; and

pre-pregnancy fat-fee-mass calculation means for calculating the pre-pregnancy fat-free mass data based on said pre-pregnancy body weight data and said pre-pregnancy fat mass data.

62. The maternity biodata measurement system as defined in claim 61, wherein said pre-pregnancy fat-mass data acquisition means includes:

maternal-fat-mass data acquisition means for acquiring data about maternal fat mass of the subject;

body-fat-increment data acquisition means for acquiring data about body-fat increment of the subject in the pregnancy period; and

pre-pregnancy fat-mass data calculation means for calculating the pre-pregnancy fat mass data based on said maternal fat mass data and said body-fat increment data.

63. The maternity biodata measurement system as defined in claim 62, wherein said maternal fat-mass data acquisition means includes:

body-weight data acquisition means for acquiring data about current body weight of the subject;

fetal-region-weight data acquisition means for acquiring data about fetal-region weight in the subject;

maternal-weight data calculation means for calculating data about maternal weight of the subject based on said current body weight data and said fetal-region weight data;

body-height data acquisition means for acquiring data about body height of the subject;

impedance data acquisition means for acquiring data about body impedance of the subject; and

maternal fat-mass data calculation means for calculating the maternal fat mass data based on said maternal weight data, said body height data and said impedance data.

64. The maternity biodata measurement system as defined in claim 63, wherein said fetal-region-weight data acquisition means includes fetal-region-weight data determination means for determining the fetal-region weight data based on the elapsed pregnancy-period data acquired by said elapsed-pregnancy-period data acquisition means.

65. The maternity biodata measurement system as defined in claim 62, wherein said body-fat-increment data acquisition means includes:

body-weight-increment data acquisition means for acquiring data about body-weight increment of the subject in the pregnancy period; and

body-fat-increment data determination means for determining a value obtained by multiplying said body-weight increment data by a predetermined rate, as the body-fat increment data.

66. The maternity biodata measurement system as defined in claim 65, wherein said body-weight-increment data acquisition means includes:

body-weight data acquisition means for acquiring data about current body weight of the subject; and

body-weight-increment data calculation means for calculating the body-weight increment data based on said current body weight data and the pre-pregnancy body weight data acquired by said pre-pregnancy body-weight data acquisition means.

67. A maternity biodata measurement system for measuring biodata of a pregnant woman who is a subject, comprising:

basal-metabolism data acquisition means for acquiring data about current basal metabolism of the subject;

daily-activity-intensity data acquisition means for acquiring data about daily activity intensity of the subject;

increased-fat-tissue-required energy-amount determination means for determining an energy amount required for increased maternal fat-tissue of the subject due to the pregnancy; and

pregnancy intake-energy-amount determination means for determining an energy amount which is actually taken by the subject in the pregnancy period, based on said basal metabolism data, said daily activity intensity data, and said increased-fat-tissue-required energy amount,

wherein said increased-fat-tissue-required energy-amount determination means includes;

elapsed-pregnancy-period data acquisition means for acquiring data about elapsed period from the pregnancy of the subject;

body-fat-increment data acquisition means for acquiring data about body-fat increment of the subject in the pregnancy period; and

increased-tissue-required energy-amount estimation means for estimating the increased-tissue-required energy amount based on said elapsed pregnancy-period data and said body-fat increment data.

68. The maternity biodata measurement system as defined in claim 67, wherein said increased-fat-tissue-required energy-amount estimation means includes:

estimation-equation storage means for storing an estimation equation for calculating data about energy amount required for an increased fat tissue due to the pregnancy, using body-fat increment data as a parameter;

estimation-equation execution means for assigning said acquired body-fat increment data to said estimation equation to calculate said energy amount data required for the increased fat tissue due to the pregnancy; and

increased-fat-tissue-required energy-amount calculation means for calculating the increased-fat-tissue-required energy amount based on said calculated energy amount data and said acquired elapsed pregnancy-period data.

69. The maternity biodata measurement system as defined in claim 67, wherein said body-fat-increment data acquisition means includes:

body-weight-increment data acquisition means for acquiring data about body-weight increment of the subject in the pregnancy period; and

body-fat-increment data determination means for determining a value obtained by multiplying said body-weight increment data by a predetermined rate, as the body-fat increment data.

70. The maternity biodata measurement system as defined in claim 69, wherein said body-weight-increment data acquisition means includes:

body-weight data acquisition means for acquiring data about current body weight of the subject; and

body-weight-increment data calculation means for calculating the body-weight increment data based on said current body weight data and pre-pregnancy body weight data.

71. The maternity biodata measurement system as defined in claim 67, wherein said basal-metabolism data acquisition means includes:

age data acquisition means for acquiring data about age of the subject;

fetal-region-weight data acquisition means for acquiring data about fetal-region weight in the subject;

maternal fat-free-mass data acquisition means for acquiring data about maternal fat-free mass of the subject; and

basal-metabolism calculation means for calculating the basal metabolism data based on said age data, said fetal-region weight data and said maternal fat-free mass data.

72. The maternity biodata measurement system as defined in claim 71, wherein said maternal fat-free-mass data acquisition means includes:

body-weight data acquisition means for acquiring data about current body weight of the subject;

maternal-weight data calculation means for calculating data about maternal weight of the subject based on said current body weight data and the fetal-region weight data acquired by said fetal-region-weight data acquisition means;

body-height data acquisition means for acquiring data about body height of the subject;

impedance data acquisition means for acquiring data about body impedance of the subject; and

maternal fat-free-mass data calculation means for calculating the maternal fat-free mass data based on said maternal weight data, said body height data and said impedance data.

73. The maternity biodata measurement system as defined in claim 71, wherein said fetal-region-weight data acquisition means includes fetal-region-weight data determination means for determining the fetal-region weight data based on the elapsed pregnancy-period data acquired by said elapsed-pregnancy-period data acquisition means.