Ankle angle variability during running in athletes with chronic ankle instability and copers

Wanner P, Schmautz T, Kluge F, Eskofier B, Pfeifer K, Steib S (2019)


Publication Language: English

Publication Type: Journal article, Original article

Publication year: 2019

Journal

Book Volume: 68

Pages Range: 329–334

URI: https://www.sciencedirect.com/science/article/pii/S096663621830345X

DOI: 10.1016/j.gaitpost.2018.11.038

Abstract

Background

Individuals with chronic ankle instability (CAI) demonstrate altered ankle kinematics during running compared to uninjured individuals; however, little is known about differences between individuals with CAI and those who recover successfully from an index sprain (copers).

Methods

Thirty-two young male athletes with prior ankle sprain were investigated, eighteen with CAI and fourteen copers. Instrumented running analysis was performed on a treadmill at two velocities: moderate (2.63 ± 0.20 m/s, rate of perceived of exertion = 14/20); and high velocity (3.83 ± 0.20 m/s). Mean ankle kinematics and stride-to-stride variability were analyzed applying the statistical parametric mapping method.

Results

At both running velocities, no statistically significant differences in mean ankle kinematics were observed. At high running velocity, athletes with CAI demonstrated significantly increased frontal plane variability at 17-19% of the running gait cycle (p = 0.009). Additionally, large between-group effect sizes (Hedges’ g ≥ 0.8) may potentially indicate increased frontal plane variability during initial contact and terminal swing, as well as decreased variability in sagittal plane at 34-35% in CAI. A similar tendency existed at moderate velocity, with large effect sizes indicating decreased dorsiflexion at 75-89% in CAI, as well as an increased frontal plane variability at 16-25%, and 97-99%.

Discussion

Compared to copers, individuals with CAI demonstrate increased variability of ankle kinematics - mainly in the frontal plane and particularly during stance phase - while mean ankle kinematics seems minimally affected. Increased ankle variability at high running velocity may best reflect persisting sensorimotor control deficits in athletes with chronically instable ankles.

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How to cite

APA:

Wanner, P., Schmautz, T., Kluge, F., Eskofier, B., Pfeifer, K., & Steib, S. (2019). Ankle angle variability during running in athletes with chronic ankle instability and copers. Gait & Posture, 68, 329–334. https://dx.doi.org/10.1016/j.gaitpost.2018.11.038

MLA:

Wanner, Philipp, et al. "Ankle angle variability during running in athletes with chronic ankle instability and copers." Gait & Posture 68 (2019): 329–334.

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