Kinematic quantification of gait asymmetry based on bilateral cyclograms
First Claim
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1. A method for quantifying asymmetry of body positions during a movement, comprising:
- synchronizing one or more sets of data, wherein each set of data comprises two subsets of data, wherein one subset of data comprises body position representations on a left side of a body and one subset of data comprises body position representations on a right side of the body, and wherein each subset of data comprises body position representations spanning the movement; and
calculating a value based on the one or more synchronized sets of data.
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Abstract
Kinematic quantification of gait asymmetry is achieved by plotting the values of the angles of corresponding joints and then comparing the resulting figure to the figure that would have been produced based on a perfectly symmetrical gait. The comparison is based on geometric characteristics that are calculated based on the figures.
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Citations
14 Claims
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1. A method for quantifying asymmetry of body positions during a movement, comprising:
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synchronizing one or more sets of data, wherein each set of data comprises two subsets of data, wherein one subset of data comprises body position representations on a left side of a body and one subset of data comprises body position representations on a right side of the body, and wherein each subset of data comprises body position representations spanning the movement; and
calculating a value based on the one or more synchronized sets of data. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method for quantifying asymmetry of joint angles during a cycle of movement, comprising:
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obtaining a set of data entries, wherein a data entry consists of one or more pairs of angle measurements, a pair comprising one angle measurement for a left joint and one angle measurement for a corresponding right joint at a same point in time, and wherein the set comprises data entries spanning the cycle of movement;
synchronizing the set of data entries;
generating a cyclogram;
calculating a characteristic of the generated cyclogram; and
comparing the characteristic to a corresponding characteristic of a cyclogram representing a perfectly symmetrical gait.
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13. A system for quantifying asymmetry of body positions during a movement, comprising:
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a synchronizing module that synchronizes one or more sets of data, wherein each set of data comprises two subsets of data, wherein one subset of data comprises body position representations on a left side of a body and one subset of data comprises body position representations on a right side of the body, and wherein each subset of data comprises body position representations spanning the movement; and
a calculating module that calculates a value based on the one or more synchronized sets of data.
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14. A computer program product for quantifying asymmetry of body positions during a movement, including a computer readable medium, which comprises instructions to perform the following:
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synchronizing one or more sets of data, wherein each set of data comprises two subsets of data, wherein one subset of data comprises body position representations on a left side of a body and one subset of data comprises body position representations on a right side of the body, and wherein each subset of data comprises body position representations spanning the movement; and
calculating a value based on the one or more synchronized sets of data.
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Specification