Sports health · 2024
Gait Characteristics and Deviation Factors of Backward Walking in Patients With Chronic Ankle Instability.
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Zhang Lei, Liu Tianyu, Zhou Xin, Chen Junyao, Zhang Haopeng, Leng Rao, Shi Houyin, Wang Guoyou
Аннотация
BACKGROUND: Despite growing applications of backward walking (BW) in assessing and rehabilitating neuromuscular conditions, its effects on gait in chronic ankle instability (CAI) remain unclear. Moreover, linking patient-reported and clinically generated measures is imperative for understanding CAI.
HYPOTHESES: Patients with CAI will exhibit worse and compensatory spatio-temporal and kinetic gait parameters during BW, and patient-reported outcomes (PROs) will be correlated significantly with gait parameters.
STUDY DESIGN: Case-control study.
LEVEL OF EVIDENCE: Level 4.
METHODS: A total of 46 volunteers participated (23 per group). Patients filled out scales for pain, functions, and fear-avoidance beliefs before testing. All participants walked 6 times each in both forward and backward conditions, and gait was recorded using the Win-Track system. A 2-way mixed analysis of variance was performed to compare gait parameters. The relationship between PRO and gait outcomes was assessed through the Pearson product correlation coefficient.
RESULTS: The CAI group demonstrated prolonged support and swing phases, increased walk-off angle, and plantar pressure area, but decreased step length and plantar pressure versus controls (P < 0.05). The CAI group had a smaller right walk-off angle during BW than FW; the control group showed the opposite (P < 0.05). The left single stance duration was greater in the CAI group, while the right was not (P < 0.05). PRO correlated significantly with gait parameters, particularly spatial parameters (P < 0.05).
CONCLUSION: The CAI group exhibited worse gait parameters during BW. The CAI group exhibited a characteristic compensatory gait pattern. Linking the self-reported scores provides a better representation of gait changes in CAI.
CLINICAL RELEVANCE: These results suggest that BW may be an effective strategy for identifying and evaluating CAI. It may be feasible to apply BW to the rehabilitation of CAI.
HYPOTHESES: Patients with CAI will exhibit worse and compensatory spatio-temporal and kinetic gait parameters during BW, and patient-reported outcomes (PROs) will be correlated significantly with gait parameters.
STUDY DESIGN: Case-control study.
LEVEL OF EVIDENCE: Level 4.
METHODS: A total of 46 volunteers participated (23 per group). Patients filled out scales for pain, functions, and fear-avoidance beliefs before testing. All participants walked 6 times each in both forward and backward conditions, and gait was recorded using the Win-Track system. A 2-way mixed analysis of variance was performed to compare gait parameters. The relationship between PRO and gait outcomes was assessed through the Pearson product correlation coefficient.
RESULTS: The CAI group demonstrated prolonged support and swing phases, increased walk-off angle, and plantar pressure area, but decreased step length and plantar pressure versus controls (P < 0.05). The CAI group had a smaller right walk-off angle during BW than FW; the control group showed the opposite (P < 0.05). The left single stance duration was greater in the CAI group, while the right was not (P < 0.05). PRO correlated significantly with gait parameters, particularly spatial parameters (P < 0.05).
CONCLUSION: The CAI group exhibited worse gait parameters during BW. The CAI group exhibited a characteristic compensatory gait pattern. Linking the self-reported scores provides a better representation of gait changes in CAI.
CLINICAL RELEVANCE: These results suggest that BW may be an effective strategy for identifying and evaluating CAI. It may be feasible to apply BW to the rehabilitation of CAI.