Muscle measuring apparatus

• US 20050004491A1
• Filed: 05/21/2004
• Published: 01/06/2005
• Est. Priority Date: 05/23/2003
• Status: Abandoned Application

• Current Assignee: Tanita Corporation (Tanita)
• Original Assignee: Tanita Corporation (Tanita)
• Inventors: Kodama, Miyuki, Shiokawa, Takashi
• Application Number:
  US10/849,810
• Publication Number:
  US 20050004491A1
• 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: A61B 5/7264 Classification of physiological signals or data, e.g. using neural networks, statistical classifiers, expert systems or fuzzy systems neural networks per se G06N3/00; expert systems per se G06N5/00

Abstract

A body fat mass and a fat free mass are calculated by BIA, and a muscle volume is calculated by subtracting bone mineral calcium from the fat free mass. The calculated muscle volume is normalized by a value using the body height of a subject, and a muscle volume per body part is calculated. The level of the muscle volume is determined by comparing the muscle volume per body part with the reference value.

Claims

1. A muscle measuring apparatus comprising:

an input unit,

a bioelectrical impedance measuring unit,

a muscle volume calculating unit, and

a muscle level calculating unit,

wherein

the input unit is used to input personal physical data of a subject which includes at least a body height, the bioelectrical impedance measuring unit measures a bioelectrical impedance,

the muscle volume calculating unit calculates the volume of muscles of the subject based on the personal physical data entered from the input unit and the measured bioelectrical impedance value, and

the muscle level calculating unit calculates the level of the muscle volume of the subject based on a muscle volume per reference unit which is calculated by “

muscle volume/(body height)ⁿ (n is a real number)”

using the body height of the subject and the calculated muscle volume.

2. The apparatus of claim 1, wherein the muscle level calculating unit calculates the level of the muscle volume as zero when the muscle volume is a standard value, as a negative level when the muscle volume is small, and as a positive level when the muscle volume is large.

3. The apparatus of claim 1 or 2, further comprising:

a body fat calculating unit, and

a somatotype determining unit,

wherein

the body fat calculating unit calculates the body fat percentage of the subject based on the physical data entered from the input unit and the measured bioelectrical impedance value, and the somatotype determining unit makes a determination with respect to a body shape or a body constitution based on a combination of the body fat and the muscle level.

4. The apparatus of claim 1 or 2, further comprising:

a body weight measuring unit,

a BMI calculating unit, and

a muscle determining unit,

wherein

the body weight measuring unit measures the body weight of the subject,

the BMI calculating unit calculates BMI from the body height entered from the input unit and the measured body weight value, and

the muscle determining unit determines the volume of muscles in the BMI of the subject based on a combination of the muscle level and the BMI.