Abstract
Adequate stiffness of the peroneal musculature may prevent excessive ankle inversion that leads to injury. Thus, this study determined the relation between peroneal stiffness and ankle inversion. Ten (9 male and 1 female) participants (ht: 1.7 0.1 m, wt: 73.3 9.8 kg) had ankle inversion (including range of inversion and time to peak inversion) quantified during a sudden inversion event. Resting and contracted peroneal muscle stiffness was also quantified with an ultrasound using shear wave elastography. Correlations examined linear relationship between ankle inversion and muscle stiffness. Resting muscle stiffness exhibited a positive relationship with the range of ankle inversion (r = 0.508) and contracted muscle stiffness exhibited a negative relationship with time to peak inversion (r = -0.538), but neither was significant (p = 0.067 and p = 0.054). Both resting and contracted stiffness of the peroneals were related to ankle inversion. But, more work is needed to determine the stiffness necessary to prevent the excessive inversion that leads to injury.
| Original language | American English |
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| State | Published - 12 Jul 2017 |