US 11,833,391 B2
Integrated portable device and method implementing an accelerometer for analyzing biomechanical parameters of a stride
Patrick Flaction, Chandolin-pres-Saviese (CH); Jacques Quièvre, Rozay en Brie (FR); and Jean-Benoit Morin, Genilac (FR)
Assigned to MYOTEST SA, Sion (CH)
Filed by Myotest SA, Sion (CH)
Filed on Dec. 21, 2017, as Appl. No. 15/850,932.
Application 15/850,932 is a continuation of application No. 15/090,254, filed on Apr. 4, 2016, granted, now 9,873,018.
Application 15/090,254 is a continuation of application No. 13/715,236, filed on Dec. 14, 2012, granted, now 9,320,457, issued on Apr. 26, 2016.
Application 13/715,236 is a continuation of application No. PCT/EP2011/059503, filed on Jun. 8, 2011.
Prior Publication US 2018/0133548 A1, May 17, 2018
Int. Cl. A63B 24/00 (2006.01); A61B 5/103 (2006.01); A61B 5/11 (2006.01); A61B 5/00 (2006.01); G01C 22/00 (2006.01); G06V 40/20 (2022.01); G01P 15/18 (2013.01)
CPC A63B 24/0006 (2013.01) [A61B 5/1038 (2013.01); A61B 5/11 (2013.01); A61B 5/112 (2013.01); A61B 5/1122 (2013.01); A61B 5/6831 (2013.01); G01C 22/006 (2013.01); G01P 15/18 (2013.01); G06V 40/23 (2022.01); A61B 2562/0219 (2013.01)] 47 Claims
OG exemplary drawing
 
1. A method for analyzing biomechanical parameters of a runner's stride using an electrically autonomous device, said device comprising:
a self-sufficient electric power source;
a tri-axial accelerometer capable of supplying at least one sequence of acceleration data in at least the vertical direction whilst the runner travels a distance on a running course;
a chronograph;
a GPS receiver;
a digital processor;
the method comprising the steps of:
a) measuring a sequence of acceleration data according to at least the vertical direction by said tri-axial accelerometer while the runner travels said distance on said running course, said distance being measured by said tri-axial accelerometer or by said GPS receiver;
b) during or at the end of the run, computing by said digital processor biomechanical parameters of the stride on the basis of said acceleration data,
wherein said biomechanical parameters include a stiffness, computed based on a maximum bearing force, wherein a regularity index is computed based on a dispersion of a reactivity, said reactivity being computed as the ratio between the flight time and the contact time, the flight time corresponding to the time interval between the moments when one foot of the runner takes off and where the same foot is in contact with the ground, the contact time corresponding to the time interval between the moments when the foot is in contact with the ground and where the same foot re-takes off.