Center for Human and Applied Physiology, School of Medicine, University of Wollongong, Wollongong, New South Wales, Australia.
Department of Athletics, University of Oregon, Eugene, Oregon.
J Strength Cond Res. 2019 Dec;33(12):3367-3373. doi: 10.1519/JSC.0000000000003000.
Sampson, JA, Murray, A, Williams, S, Sullivan, A, and Fullagar, HHK. Subjective wellness, acute: chronic workloads and injury risk in college football. J Strength Cond Res 33(12): 3367-3373, 2019-Acute:chronic workload ratios (ACWRs) are associated with injury risk across team sports. In this study, one season of workload and wellness data from 42 collegiate football players were retrospectively analyzed. Daily 7:21 day exponentially weighted moving average (EWMA) ACWRs were calculated, and z-score fluctuations ("normal," "better," and "worse") in sleep, soreness, energy, and overall wellness were assessed relative to the previous day ACWRs and considered as an interactive effect on the risk of noncontact injury within 0-3 days. Fifty-five noncontact injuries were observed, and injury risks were very likely higher when ACWRs were 2 SDs above (relative risk [RR]: 3.05, 90% confidence interval [CI]: 1.14-8.16) and below (RR: 2.49, 90% CI: 1.11-5.58) the mean. A high ACWR was trivially associated (p < 0.05) with "worse" wellness (r = -0.06, CI: -0.10 to -0.02), muscle soreness (r = -0.07, CI: -0.11 to -0.03), and energy (r = -0.05, CI: -0.09 to -0.01). Feelings of "better" overall wellness and muscle soreness with collectively high EWMA ACWRs displayed likely higher injury risks compared with "normal" (RR: 1.52, 90% CI: 0.91 to 2.54; RR: 1.64, 90% CI: 1.10-2.47) and likely or very likely (RR: 2.36, 90% CI: 0.83 to 674; RR: 2.78, 90% CI: 1.21-6.38) compared with "worse" wellness and soreness, respectively. High EWMA ACWRs increased injury risk and negatively impacted wellness. However, athletes reporting "better" wellness, driven by "better" muscle soreness presented with the highest injury risk when high EWMA ACWRs were observed. This suggests that practitioners are responsive to, and/or athletes are able to self-modulate workload activities.
萨普森，JA，默里，A，威廉姆斯，S，沙利文，A，和富拉格，HHK。主观幸福感，急性：慢性工作量和大学橄榄球的受伤风险。J 力量与调理研究 33(12)：3367-3373，2019-急性：慢性工作量比（ACWR）与团队运动的受伤风险有关。在这项研究中，回顾性分析了 42 名大学橄榄球运动员的一个赛季的工作量和健康数据。计算了每日 7:21 天指数加权移动平均（EWMA）ACWR，并评估了相对于前一天 ACWR 的睡眠、酸痛、能量和整体健康的 Z 分数波动（“正常”、“更好”和“更差”），并将其视为对 0-3 天内非接触性损伤风险的交互影响。观察到 55 例非接触性损伤，当 ACWR 高出（相对风险 [RR]：3.05，90%置信区间 [CI]：1.14-8.16）和低于（RR：2.49，90% CI：1.11-5.58）均值 2 个标准差时，受伤风险非常可能更高。高 ACWR 与“更差”的健康状况（r = -0.06，CI：-0.10 至-0.02）、肌肉酸痛（r = -0.07，CI：-0.11 至-0.03）和能量（r = -0.05，CI：-0.09 至-0.01）有轻微关联（p<0.05）。与“正常”相比，整体健康状况和肌肉酸痛感觉“更好”，而总体 EWMA ACWR 较高，则显示出更高的受伤风险（RR：1.52，90% CI：0.91 至 2.54；RR：1.64，90% CI：1.10-2.47），而“更差”的健康状况和酸痛感则可能或很可能（RR：2.36，90% CI：0.83 至 674；RR：2.78，90% CI：1.21-6.38）。高 EWMA ACWR 增加了受伤风险并对健康产生负面影响。然而，当观察到高 EWMA ACWR 时，报告“更好”健康状况，主要是由“更好”的肌肉酸痛引起的运动员，受伤风险最高。这表明从业者对工作量活动的反应灵敏，和/或运动员能够自我调节工作量活动。
