在野外消防员关键训练期间肌肉损伤和过度训练。
Muscle Damage and Overreaching During Wildland Firefighter Critical Training.
机构信息
School of Integrative Physiology and Athletic Training, University of Montana, Missoula, Montana (Ms Christison, Mr Gurney, Mr Sol, Ms Williamson-Reisdorph, Ms Quindry, Dr Quindry, Dr Dumke); United States Department of Agriculture, Forest Service, National Technology and Development Program, Missoula, Montana (Mr Sol).
出版信息
J Occup Environ Med. 2021 Apr 1;63(4):350-356. doi: 10.1097/JOM.0000000000002149.
OBJECTIVE
To document the effects of wildland firefighter (WLFF) critical training (CT) on physiologic markers of muscle damage and acute overreaching.
METHODS
Eighteen male and three female WLFFs were studied during an 11-day CT. Upper-body (US), lower-body (LS) muscle soreness and body weight (BW) were collected daily. Blood was collected on days 1, 4, 8, and 11 to measure creatine kinase (CK), lactate dehydrogenase (LDH), cortisol, and testosterone. Skinfolds were taken on days 1 and 11 to estimate body fat (BF) and lean body weight (LBW).
RESULTS
CT resulted in a significant depression in BF and elevation in LBW, while main effects of time were seen in US, LS, CK, LDH, cortisol, and testosterone/cortisol ratio (P < 0.05).
CONCLUSION
These data suggest WLFFs undergo significant physiological stressors resulting in muscle soreness, damage, and possible overreaching during CT.
目的
记录野外消防员（WLFF）关键训练（CT）对肌肉损伤和急性过度训练的生理标志物的影响。
方法
在 11 天的 CT 期间，研究了 18 名男性和 3 名女性 WLFF。每天采集上半身（US）、下半身（LS）肌肉酸痛和体重（BW）数据。在第 1、4、8 和 11 天采集血液以测量肌酸激酶（CK）、乳酸脱氢酶（LDH）、皮质醇和睾酮。在第 1 天和第 11 天测量体脂（BF）和瘦体重（LBW）。
结果
CT 导致 BF 显著降低和 LBW 显著升高，而 US、LS、CK、LDH、皮质醇和睾酮/皮质醇比值的时间主效应显著（P<0.05）。
结论
这些数据表明，在 CT 期间，WLFF 经历了显著的生理压力，导致肌肉酸痛、损伤和可能的过度训练。
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