Gait analysis system and methods
First Claim
1. A method for analyzing the gait of an individual wearing a left shoe and a right shoe, the method including the steps of:
- (a) acquiring data from a first array comprising a plurality of shear sensors configured for placement in a left shoe and from a second array comprising a plurality of shear sensors configured for placement in a right shoe, the acquired data being separated into at least two separate gait phases for each array;
(b) comparing at least a portion of the acquired data to a baseline condition for each gait phase; and
(c) categorizing the sensors in each array, or a group of sensors in each array, into one of at least two uniformity categories for each gait phase based on the comparison of the acquired data to the baseline condition.
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Abstract
Systems and methods for analyzing the gait of an individual are disclosed. The disclosed systems and methods can be configured to acquire data from a first array and a second array of sensors that are configured to be placed in a left and/or right shoe, respectively. The acquired data can be collected or separated into at least two separate gait phases for each array, compared to a baseline condition for each gait phase and categorized into one of at least two uniformity categories for each gait phase. Examples of collected and/or calculated data include pressure values, shear stress values and torque values. The analysis can be focused on both feet of a person, or focused on one foot. A graphical output showing at least one entire gait cycle based on the uniformity categories can then be generated.
33 Citations
20 Claims
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1. A method for analyzing the gait of an individual wearing a left shoe and a right shoe, the method including the steps of:
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(a) acquiring data from a first array comprising a plurality of shear sensors configured for placement in a left shoe and from a second array comprising a plurality of shear sensors configured for placement in a right shoe, the acquired data being separated into at least two separate gait phases for each array; (b) comparing at least a portion of the acquired data to a baseline condition for each gait phase; and (c) categorizing the sensors in each array, or a group of sensors in each array, into one of at least two uniformity categories for each gait phase based on the comparison of the acquired data to the baseline condition. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A method for analyzing the gait of an individual wearing a left shoe and a right shoe, the method including the steps of:
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(a) acquiring data from a first array comprising a plurality of pressure sensors configured for placement in a left shoe and from a second array comprising a plurality of pressure sensors configured for placement in a right shoe, the acquired data being separated into at least two separate gait phases for each array; (b) comparing at least a portion of the acquired data to a baseline condition for each gait phase; and (c) categorizing the sensors in each array, or a group of sensors in each array, into one of at least two uniformity categories for each gait phase based on the comparison of the acquired data to the baseline condition. - View Dependent Claims (15, 16, 17)
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18. A method for analyzing the gait of an individual wearing a left shoe and a right shoe, the method including the steps of:
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a. acquiring data onto a computerized storage device; i. the acquired data comprising sensor and time information being from a first array of sensors disposed in a left shoe and a second array of sensors disposed in a right shoe; ii. each sensor in the first array having a corresponding and similarly located sensor in the second array that together form a sensor pair; b. creating a data evaluation set, including the steps of; i. parsing at least some of the acquired data into at least two separate gait phases for each array; ii. calculating a mean value for each sensor for each similar gait phase; and iii. calculating a mean value for each sensor pair for each similar gait phase; iv. analyzing the data evaluation set, including the steps of; v. comparing, for each gait phase, the mean value for each sensor to the sensor pair mean value and to a mean deviation limit value; and vi. categorizing each sensor into one of at least two uniformity categories for each gait phase on the basis of the comparison; and c. creating a graphical output based on the category into which each sensor has been placed, the output showing at least one entire gait cycle wherein each gait phase is individually represented by a right footprint and a left footprint. - View Dependent Claims (19, 20)
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Specification