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 onto a computerized storage device;
(i) the acquired data comprising pressure and time information being from a first array of pressure sensors disposed in a left shoe and a second array of pressure sensors disposed in a right shoe;
(ii) each pressure sensor in the first array having a corresponding and similarly located pressure sensor in the second array that together form a pressure 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 pressure value for each sensor for each similar gait phase; and
(iii) calculating a mean pressure value for each sensor pair for each similar gait phase;
(c) analyzing the data evaluation set, including the steps of;
(i) comparing, for each gait phase, the mean pressure value for each sensor to the sensor pair mean pressure value and to a mean pressure deviation limit value; and
(ii) categorizing each sensor into one of at least two pressure uniformity categories for each gait phase on the basis of the comparison; and
(d) 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.
5 Assignments
0 Petitions
Accused Products
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.
37 Citations
19 Claims
-
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 onto a computerized storage device; (i) the acquired data comprising pressure and time information being from a first array of pressure sensors disposed in a left shoe and a second array of pressure sensors disposed in a right shoe; (ii) each pressure sensor in the first array having a corresponding and similarly located pressure sensor in the second array that together form a pressure 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 pressure value for each sensor for each similar gait phase; and (iii) calculating a mean pressure value for each sensor pair for each similar gait phase; (c) analyzing the data evaluation set, including the steps of; (i) comparing, for each gait phase, the mean pressure value for each sensor to the sensor pair mean pressure value and to a mean pressure deviation limit value; and (ii) categorizing each sensor into one of at least two pressure uniformity categories for each gait phase on the basis of the comparison; and (d) 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 (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
-
-
18. A system for analyzing the gait of an individual wearing a left shoe and a right shoe, the system comprising:
-
(a) a first array of pressure sensors configured to be positioned in a left shoe and a first data transmitter configured to transmit pressure and time data from the first array of pressure sensors to a data collection device; (b) a second array of pressure sensors configured to be positioned in a right shoe and a second data transmitter configured to transmit pressure and time data from the second array of pressure sensors to a data collection device, wherein each pressure sensor in the first array has a corresponding and similarly located pressure sensor in the second array that together form a pressure sensor pair; (c) a data collection device configured to receive data from the first and second transmitters and to acquire the data onto a computerized storage device wherein the acquired data comprises pressure and time information from the first array of pressure sensors and the second array of pressure sensors; and (d) a computer processor constructed and configured to; (i) parse at least some of the received data into at least two separate gait phases for each array; (ii) calculate a mean pressure value for each sensor for each similar gait phase; and (iii) calculate a mean pressure value for each sensor pair for each similar gait phase; (iv) compare, for each gait phase, the mean pressure value for each sensor to the sensor pair mean pressure value and to a mean pressure deviation limit value; and (v) categorize each sensor into one of at least two pressure uniformity categories for each gait phase on the basis of the comparison; (e) wherein an electronic display is configured to display an 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)
-
Specification