Shalane Flanagan Upper Body Stride Analysis


Filming Shalane Flanagan running the 10K at 300 frames per second enabled us to measure some problems with her upper body mechanics.

In addition to tension in her arms, it appears she has some restrictions in her breathing ranges which could account for her labored breathing in her post-race interview and her disappointing loss to Sally Kipyego.

Runners assume that they are out of shape when they are out of breath, but they may just be out of breath. Restrictions to the expansion of the stomach, diaphragm and chest place an extra burden on the diaphragm muscle and restrict the amount of oxygen a runner can take in during the race. Athletes with 15% expansion have been able to crush athletes with a higher VO2max.