Corrigendum to “Understanding the effects of a sudden directional shift in somatosensory feedback and increasing task complexity on postural adaptation in individuals with and without chronic ankle instability” [Gait Posture 109 (2024) 158–164, (S0966636224000213), (10.1016/j.gaitpost.2024.01.019)]

The authors regret: Abstract; Methods: Forty-two individuals with and without unilateral CAI performed the Adaptation Test to a sudden somatosensory inversion and plantarflexion perturbations (environment) in double-, injured-, and uninjured limbs. Tables 3 and 4: The parameters at the top are associated with the CAI group and the parameters at the bottom are associated with the healthy control group. Table 4: A 3-Factor Interaction for Group, and Task and Environmental Constraints: Within Group Pairwise Comparisons for Sway Energy Scores (Mean±SD). Discussion; Second from the last paragraph: Slower postural adaptation to a sudden SOM-IN perturbation in DL compared to a sudden SOM-PF was observed in both the CAI group and healthy controls. In contrast, both groups showed faster postural adaptation to a sudden SOM-IN perturbation in IL and UL compared to a sudden SOM-PF. In a bilateral stance, the center-of-pressure (COP) of the IL and UL are controlled independently [34]. Postural control in the AP direction requires collaboration between the plantarflexor and dorsiflexor muscles in both the IL and UL [34]. However, there is no collaboration between the invertors and evertors in the bilateral limb for the ML direction [34]. In other words, the COP in the IL and UL move forward in synchrony in response to a sudden SOM-PF perturbation but shift out of phase in response to a sudden SOM-IN perturbation [34]. This explains why the CAI group and healthy controls adapted more slowly to a sudden SOM-IN perturbation in the DL, but more rapidly in the IL and UL. The authors would like to apologize for any inconvenience caused.