Lower limb biomechanics in individuals with chronic ankle instability during gait: a case‐control study

Autor: Gabriel Moisan, Camille Mainville, Martin Descarreaux, Vincent Cantin
Jazyk: angličtina
Rok vydání: 2021
Předmět:
Zdroj: Journal of Foot and Ankle Research, Vol 14, Iss 1, Pp n/a-n/a (2021)
Druh dokumentu: article
ISSN: 1757-1146
DOI: 10.1186/s13047-021-00476-6
Popis: Abstract Background Individuals with chronic ankle instability (CAI) exhibit many biomechanical changes to lower limbs during walking. However, only a few studies have investigated the differences in lower limb biomechanics of individuals with CAI compared to healthy controls using a comprehensive approach including kinematic, kinetic and electromyography (EMG) measures. Consequently, the theoretical framework explaining the biomechanical adaptations in individuals with CAI is mostly based on the results of studies including heterogenous methods and participants' specificities (e.g., level of disability). More studies using a comprehensive approach are needed to better understand the biomechanical adaptations associated with CAI. The objective of this case‐control study was to identify the kinematic, kinetic and EMG differences between individuals with CAI and healthy controls during walking. Methods Twenty‐eight individuals with CAI and 26 healthy controls were recruited to walk at a self‐selected speed during which lower limb kinematics, kinetics and EMG were analysed. Ankle and knee angles and moments as well as gluteus medius, vastus lateralis, gastrocnemius lateralis, peroneus longus and tibialis anterior muscles activity were compared between the CAI and control groups using one‐dimensional statistical parametric mapping. Results The CAI group exhibited greater ankle inversion angles from 14 to 48% of the stance phase (%SP) (p = 0.008), ankle eversion moments from 40 to 78%SP (p
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