Faculty of Kinesiology and Physical Education, University of Toronto, Toronto, Canada.
Department of Mechanical and Industrial Engineering, University of Toronto, Toronto, Canada.
J Sports Sci. 2024 Nov;42(21):2061-2069. doi: 10.1080/02640414.2024.2422736. Epub 2024 Oct 31.
Concussion-recovered athletes have a higher risk of injury following return to sport. This study investigated the effect of history of concussion on the pattern and variability of inter-segmental coordination in athletes during squat jumps and timed squat and hinge tasks. A human pose estimation algorithm was applied to videos of 111 athletes (72 with no history of concussion (NOHX), 9 within 1 year of concussion (CONC1), 30 more than one-year post-concussion (CONC2) performing a series of movement tasks. Continuous relative phase metrics, calculated from phase angles of two contiguous segments, were used to evaluate inter-segmental coordination. Linear models were used to evaluate the causal effect of concussion group on hip, knee, and ankle coordination and repetition duration for each task. CONC1 affected repetition duration and knee and hip coordination and variability, while CONC2 influenced knee coordination. The findings suggest that concussion may have long-term persisting effects on lower-limb inter-segmental coordination in athletes.
脑震荡康复后的运动员在重返运动后受伤的风险更高。本研究调查了脑震荡史对深蹲跳、定时深蹲和铰链任务中运动员节段间协调模式和可变性的影响。应用人体姿势估计算法对 111 名运动员的视频进行分析（72 名无脑震荡史（NOHX），9 名脑震荡后 1 年内（CONC1），30 名脑震荡后超过 1 年（CONC2））。使用连续相对相位指标，从两个连续节段的相位角计算节段间协调。线性模型用于评估脑震荡组对每个任务的髋关节、膝关节和踝关节协调和重复持续时间的因果影响。CONC1 影响重复持续时间以及膝关节和髋关节的协调和可变性，而 CONC2 影响膝关节的协调。研究结果表明，脑震荡可能对运动员下肢节段间协调产生长期持续影响。
