The smaller map area and volume suggest a more concentrated area of neurons communicating with the FL muscle in patients with CAI. Consequently, motor cortical cells on the border of the FL excitation area are less committed to the proper function of the FL muscle and may be recruited by other surrounding areas. This may explain altered movement strategies that lead to ankle reinjury.

No abstract

Decreased corticospinal excitability of the anterior tibialis muscle may contribute to the persistent deficits in dorsiflexion range of motion (DFRoM) associated with chronic ankle instability (CAI). The purpose of this study was to examine the association between corticospinal excitability and inhibition of the anterior tibialis muscle and active DFRoM in patients with CAI. Twenty-one participants (age = 22.7 ± 3.3 years, height = 168.43 ± 8.0 cm, weight = 70.6 ± 14.4 kg) were How to cite this article: Kosik KB, Terada M, McCann RS, Drinkard CP, Gribble PA. Association between corticospinal inhibition and active dorsiflexion range of motion in patients with chronic ankle instability.