US 11,875,696 B2
Method and device for retrieving biomechanical parameters of a stride
Jérôme Corre, Savières (CH); Steve DeVènes, Riddes (CH); Frédéric Lamon, Corin-de-la-Crête (CH); Stefan Hochuli Paychère, Chigny (CH); and Christophe Ramstein, Haute-Nendaz (CH)
Assigned to Slyde Analytics LLC, Houston, TX (US)
Appl. No. 16/652,655
Filed by Myotest SA, Sion (CH)
PCT Filed Aug. 29, 2018, PCT No. PCT/IB2018/056598
§ 371(c)(1), (2) Date Mar. 31, 2020,
PCT Pub. No. WO2019/043601, PCT Pub. Date Mar. 7, 2019.
Claims priority of application No. 1062/17 (CH), filed on Aug. 29, 2017.
Prior Publication US 2020/0269088 A1, Aug. 27, 2020
Int. Cl. A63F 9/24 (2006.01); A63F 11/00 (2006.01); G06F 13/00 (2006.01); G06F 17/00 (2019.01); G09B 19/00 (2006.01); G06N 20/00 (2019.01); A63B 24/00 (2006.01); G06F 3/01 (2006.01); G06V 10/42 (2022.01); G06V 40/20 (2022.01)
CPC G09B 19/0038 (2013.01) [A63B 24/0003 (2013.01); A63B 24/0062 (2013.01); G06F 3/011 (2013.01); G06F 3/017 (2013.01); G06N 20/00 (2019.01); A63B 2220/40 (2013.01); A63B 2220/803 (2013.01); G06V 10/431 (2022.01); G06V 40/23 (2022.01)] 19 Claims
OG exemplary drawing
 
1. A method for determining biomechanical parameters of the stride of a runner, using an accelerometer device on one wrist, on one upper arm, on the head or on one shoe, comprising the steps of
measuring an initial sequence of acceleration data in at least the vertical direction using said accelerometer device, said initial sequence of acceleration data depending on the motion of the runner's center of mass, and on extra-motions of the accelerometer device relative to the runner's center of mass;
identifying in said initial sequence of acceleration data at least one frequency component caused by relative motion of the accelerometer device relative to the runner center of mass;
attenuating said frequency component, so as to attenuate the component of acceleration due to said extra motions, so as to determine a modified sequence of acceleration data corresponding to the one that would be measured at the runner's center of mass;
determining said biomechanical parameters of the stride from said modified sequence of acceleration data.