Buffalo Sabres, Buffalo, New York.
Physical Therapy Department, Nazareth College, Rochester, New York.
J Strength Cond Res. 2021 May 1;35(5):1338-1344. doi: 10.1519/JSC.0000000000004001.
Gannon, EA, Higham, DG, Gardner, BW, Nan, N, Zhao, J, and Bisson, LJ. Changes in neuromuscular status across a season of professional men's ice hockey. J Strength Cond Res 35(5): 1338-1344, 2021-To quantify changes in neuromuscular function over a full professional men's ice hockey season, 27 players (n = 18 forwards and 9 defensemen) performed 3 countermovement jumps (CMJ) each week over 30 sessions separated into 4 phases: preseason, early-season, midseason, and late-season. Outcome variables represented jump performance (jump height), kinematics (mean velocity and peak velocity), and movement strategy (countermovement depth). Mixed models characterized relationships between positional group, season phase, and CMJ outcomes. Statistical significance was set at p ≤ 0.05. Concentric peak velocity (p = 0.02), jump height (p = 0.001), and countermovement depth (p < 0.001) displayed a significant reduction across the season. Peak velocity was lower during the early-season than the preseason (-0.10 ± 0.06 m·s-1, mean change ± 95% confidence limit, p = 0.05). Countermovement depth was reduced during the early-season (-0.06 ± 0.03 m, p = 0.02), midseason (-0.10 ± 0.04 m, p = 0.002), and late-season (-0.15 ± 0.04 m, p < 0.001) relative to the preseason. Reductions in CMJ variables from preseason to in-season ranged from trivial to large. Changes in countermovement depth differed for forwards and defensemen by the season phase (p = 0.04). A professional ice hockey season decreases CMJ performance, with the effects of fatigue most prominent during the late-season phase. Countermovement depth was most sensitive to fatigue and differentiated positional-group responses. Frequent CMJ testing is useful for identifying the neuromuscular status of team-sport athletes relative to season-specific phases. Fatigue monitoring should incorporate movement-strategy variables alongside traditional measures of performance and kinematics.
甘农、EA、海厄姆、DG、加德纳、BW、楠、N、赵、J 和比森、LJ。职业男子冰球赛季中神经肌肉状态的变化。J 力量与调理研究 35(5):1338-1344,2021-为了量化整个职业男子冰球赛季中神经肌肉功能的变化，27 名球员(18 名前锋和 9 名后卫)每周进行 3 次纵跳，共 30 次，分为 4 个阶段： preseason，early-season，midseason 和 late-season。结果变量代表跳跃表现(跳跃高度)、运动学(平均速度和峰值速度)和运动策略(反向运动深度)。混合模型描述了位置组、季节阶段和纵跳结果之间的关系。统计显著性设为 p ≤ 0.05。在整个赛季中，向心峰速(p = 0.02)、跳跃高度(p = 0.001)和反向运动深度(p < 0.001)均显著降低。早期的峰值速度低于前期(-0.10 ± 0.06 m·s-1，平均变化±95%置信限，p = 0.05)。反向运动深度在早期(-0.06 ± 0.03 m，p = 0.02)、中期(-0.10 ± 0.04 m，p = 0.002)和后期(-0.15 ± 0.04 m，p < 0.001)都比前期小。从前期到赛季期间，纵跳变量的减少从微不足道到很大。反向运动深度因季节阶段的不同而在前锋和后卫之间有所不同(p = 0.04)。一个职业冰球赛季会降低纵跳表现，疲劳的影响在赛季后期阶段最为明显。反向运动深度对疲劳最敏感，并区分了位置组的反应。频繁的纵跳测试有助于确定团队运动运动员相对于赛季特定阶段的神经肌肉状态。疲劳监测应包括运动策略变量以及传统的性能和运动学测量。
