Yamashita Yuto, Umemura Yoshihisa
Laboratory for Exercise Physiology and Biomechanics, Graduate School of Health and Sport Sciences, Chukyo University, 101 Tokodachi, Kaizu-cho, Toyota 470-0393, Japan.
J Hum Kinet. 2022 Sep 8;83:131-141. doi: 10.2478/hukin-2022-0068. eCollection 2022 Aug.
The aim of this study was to investigate the effects of warming up again during half-time (i.e., re-warm up [RW]) with high-intensity, intermittent, short-duration exercise on cycling sprint performance. Participants (male, n = 10) performed intermittent cycling exercise for 40 min, followed by a 15-min half-time period with either rest only (control trials [CON]) or rest followed by a RW (three intervals of 3 s of maximal-effort cycling and 27 s of rest [HII]), after which participants performed the Cycling Intermittent-Sprint Protocol (CISP) to evaluate their sprint performance (17.0 ± 1.4°C, 44.2 ± 7.0% relative humidity). CISP intervals comprised 10 s rest, 5 s maximal effort cycling, and 105 s active recovery at 50% of the maximum oxygen uptake (VO) and were repeated 10 times. All participants performed both trial variations in randomized order. Peak power output of 5-s cycling sprints during the CISP were significantly higher in HII trials than those in CON trials (CON: 813 ± 109 W, HII: 836 ± 118 W, p < 0.05). Oxygen uptake, blood lactate concentration, and the rating of perceived exertion at the beginning of the second half after the RW were significantly higher in HII trials than those in CON trials (p < 0.05). These results demonstrate that the RW with intermittent, high-intensity, short-duration exercise improved subsequent cycling sprint performance in a thermoneutral environment and may represent a new useful RW strategy.
本研究的目的是调查在中场休息时再次进行高强度、间歇性、短时间运动热身（即重新热身[RW]）对自行车冲刺性能的影响。参与者（男性，n = 10）进行40分钟的间歇性自行车运动，随后是15分钟的中场休息时间，在此期间，一组仅进行休息（对照试验[CON]），另一组休息后进行重新热身（三个3秒全力骑行和27秒休息的间歇[HII]），之后参与者进行自行车间歇性冲刺协议（CISP）以评估他们的冲刺性能（温度17.0±1.4°C，相对湿度44.2±7.0%）。CISP间歇包括10秒休息、5秒全力骑行和105秒以最大摄氧量（VO）的50%进行的主动恢复，并重复10次。所有参与者以随机顺序进行两种试验变体。在CISP期间，5秒自行车冲刺的峰值功率输出在HII试验中显著高于CON试验（CON：813±109瓦，HII：836±118瓦，p<0.05）。在重新热身之后的下半场开始时，HII试验中的摄氧量、血乳酸浓度和主观用力程度评分显著高于CON试验（p<0.05）。这些结果表明，在热中性环境中，通过间歇性、高强度、短时间运动进行的重新热身可改善随后的自行车冲刺性能，这可能代表一种新的有用的重新热身策略。
