There were no T2 differences across the three shoe conditions. Kinematic and EMG data were also collected while subjects ran on a treadmill. The change in T2 from before to after each run characterized the level of metabolic activity in each of muscle. Ten males ran at 3.6 m/s in specially constructed shoes for 5 min with T2-weighted mfMRI collected before and after each run. The purpose of this study was to examine the muscle functional (mf) MRI and EMG responses to perturbations of the foot by running in varus, neutral and valgus wedged shoes. However, the roles of the extrinsic foot muscles during running have not been adequately identified. Over-pronation has been cited as a key contributor to many types of running injuries.
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