年龄和体脂含量对全身冷冻疗法后下坡跑恢复的影响。
The Effects of Age and Body Fat Content on Post-Downhill Run Recovery Following Whole Body Cryotherapy.
机构信息
Sports Studies, Moulton College, West Street, Moulton NN3 7RR, UK.
Sport and Exercise Science, University of Northampton Waterside Campus, Northampton NN1 5PH, UK.
出版信息
Int J Environ Res Public Health. 2021 Mar 12;18(6):2906. doi: 10.3390/ijerph18062906.
This study explored the effects of age and body fat content on responses to whole body cryotherapy (WBC) following a downhill running bout. Forty-one male participants (mean ± SD age 42.0 ± 13.7 years, body mass 75.2 ± 10.8 kg) were allocated into WBC (n = 26) and control (CON, n = 15) groups. WBC participants were divided into old (OLD, ≥45 years, n = 10) and young (YNG, <40 years, n = 13), as well as high fat (HFAT, ≥20%, n = 10) and low fat (LFAT ≤ 15%, n = 8) groups. Participants completed a 30 min downhill run (15% gradient) at 60% VO max. The WBC group underwent cryotherapy (3 min, -120 °C) 1 h post-run and CON participants passively recovered in a controlled environment (20 °C). Maximal isometric leg muscle torque was assessed pre and 24 h post-run. Blood creatine kinase (CK) and muscle soreness were assessed pre, post, one hour and 24 h post-run. Muscle torque significantly decreased in both groups post-downhill run (WBC: 220.6 ± 61.4 Nm vs. 208.3 ± 67.6 Nm, = 0.02; CON: 239.7 ± 51.1 Nm vs. 212.1 ± 46.3 Nm, = 0.00). The mean decrease in WBC was significantly less than in CON ( = 0.04). Soreness and CK increased 24 h post for WBC and CON ( < 0.01) with no difference between groups. Muscle torque significantly decreased in OLD participants ( = 0.04) but not in YNG ( = 0.55). There were no differences between HFAT and LFAT (all values > 0.05). WBC may attenuate muscle damage and benefit muscle strength recovery following eccentrically biased exercises, particularly for young males.
这项研究探讨了年龄和体脂含量对下坡跑后全身冷冻疗法（WBC）反应的影响。41 名男性参与者（平均年龄 ± 标准差为 42.0 ± 13.7 岁，体重 75.2 ± 10.8 公斤）被分为 WBC（n = 26）和对照组（CON，n = 15）。WBC 参与者分为老年（OLD，≥45 岁，n = 10）和年轻（YNG，<40 岁，n = 13），以及高脂肪（HFAT，≥20%，n = 10）和低脂肪（LFAT≤15%，n = 8）组。参与者完成了 30 分钟的下坡跑（15%坡度），速度为 60%VO max。WBC 组在跑步后 1 小时进行冷冻治疗（3 分钟，-120°C），而 CON 组在受控环境（20°C）中被动恢复。在跑步前和跑步后 24 小时评估最大等长腿部肌肉扭矩。在跑步前、后、跑步后 1 小时和 24 小时评估血液肌酸激酶（CK）和肌肉酸痛。两组下坡跑后肌肉扭矩均显著下降（WBC：220.6 ± 61.4 Nm 与 208.3 ± 67.6 Nm，= 0.02；CON：239.7 ± 51.1 Nm 与 212.1 ± 46.3 Nm，= 0.00）。WBC 的平均下降幅度明显小于 CON（= 0.04）。WBC 和 CON 的肌肉酸痛和 CK 在跑步后 24 小时增加（<0.01），两组之间无差异。OLD 参与者的肌肉扭矩明显下降（= 0.04），而 YNG 参与者则没有（= 0.55）。HFAT 和 LFAT 之间没有差异（所有 值>0.05）。WBC 可能会减轻离心运动后肌肉损伤，并有益于肌肉力量恢复，尤其是对于年轻男性。
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