Department of Rehabilitation, Nishioka Daiichi Hospital, Sapporo 062-0033, Japan.
Faculty of Health Sciences, Hokkaido University, Sapporo 060-0812, Japan.
Int J Environ Res Public Health. 2022 May 9;19(9):5781. doi: 10.3390/ijerph19095781.
With this study, we aimed to investigate the effects of different warm-up intensities on counter-movement jump (CMJ) performance over time under cold conditions. Eleven male collegiate athletes volunteered. The participants performed high-intensity warm-up (HWU) at 80% VO2max and moderate-intensity warm-up (MWU) at 60% VO2max for 15 min on a bicycle ergometer in a laboratory room at 10 °C. CMJ height, vastus lateralis muscle temperature, heart rate, and perceived fatigue were measured before warm-up (Pre), immediately after (Post 0), 10 min after (Post 10), and 20 min after (Post 20). Significant main effects and interactions were found for CMJ height (time, p < 0.001 and ηp2 = 0.859; interaction, p = 0.007 and ηp2 = 0.327). HWU significantly increased CMJ height at Post 0 to Post 20 compared to that at Pre (p < 0.01), whereas MWU increased CMJ height at Post 0 only compared to that at Pre (p < 0.001). The results indicate that HWU achieved an increase in CMJ height for 20 min. MWU changed CMJ height instantly, but the change did not last compared to HWU in a cold environment.
本研究旨在探讨在寒冷条件下，不同热身强度对反跳式跳跃（CMJ）表现的影响随时间的变化。11 名男性大学生运动员自愿参与。参与者在 10°C 的实验室房间内的自行车测力计上进行 15 分钟的高强度热身（HWU，达到 80%最大摄氧量）和中等强度热身（MWU，达到 60%最大摄氧量）。在热身前（Pre）、热身即刻后（Post 0）、10 分钟后（Post 10）和 20 分钟后（Post 20）测量 CMJ 高度、股外侧肌温度、心率和主观疲劳感。CMJ 高度呈现出显著的主效应和交互作用（时间，p < 0.001，ηp2 = 0.859；交互作用，p = 0.007，ηp2 = 0.327）。与热身前相比，HWU 在热身即刻后至 20 分钟内显著增加了 CMJ 高度（p < 0.01），而 MWU 仅在热身即刻后增加了 CMJ 高度（p < 0.001）。结果表明，HWU 在 20 分钟内实现了 CMJ 高度的增加。MWU 即刻改变了 CMJ 高度，但与 HWU 相比，在寒冷环境下，这种变化持续时间较短。
