Department of Sport Science and Research, Japan Institute of Sports Sciences, Japan High Performance Sport Center, Tokyo, Japan.
Albirex Niigata BB, Niigata, Japan.
Physiol Rep. 2023 Mar;11(6):e15637. doi: 10.14814/phy2.15637.
This case study reports the effects of six sessions of repeated sprint training in hypoxia (RSH) over 3 weeks on explosive power production capacity and repeated sprint ability (RSA) in two Japanese international-level foil fencers. The six RSH sessions (60-s sprints in total per session: consisting of two sets of five 6-s sprints with 30-s passive recovery, at simulated altitude of 3000 m) caused improvements of peak power output (PPO; Athlete A: 5.1%; Athlete B: 3.2%) and mean power output (MPO; Athlete A: 4.4%; Athlete B: 1.6%) over the 10 repeated sprints, respectively. The observed findings suggest that as few as six RSH sessions over 3 weeks can improve, at least to some extent, explosive power production capacity (PPO) and RSA (MPO) in the two elite fencers. To the best of our knowledge, this is the first study to apply short-term RSH in combat sport (fencing) with international-level athletes. Further studies are required to explore the effectiveness of short-term RSH in combat sports with a more robust study design (e.g., randomized control trial with adequate statistical power) as the modality of RSH would suit physical and physiological demands in the majority of combat sports (e.g., wrestling, boxing).
本案例研究报告了在 3 周内进行 6 次重复冲刺训练（RSH）在缺氧环境下对 2 名日本国际级花剑运动员爆发力产生能力和重复冲刺能力（RSA）的影响。6 次 RSH 训练（每次共 60 秒冲刺：包括两组 5 个 6 秒冲刺，每个冲刺之间有 30 秒的被动恢复期，在模拟海拔 3000 米的环境下进行）分别使 10 次重复冲刺中的峰值功率输出（PPO；运动员 A：5.1%；运动员 B：3.2%）和平均功率输出（MPO；运动员 A：4.4%；运动员 B：1.6%）得到提高。观察到的结果表明，在 3 周内进行 6 次 RSH 训练可以在一定程度上提高这 2 名精英运动员的爆发力产生能力（PPO）和 RSA（MPO）。据我们所知，这是第一项将短期 RSH 应用于国际级击剑运动员的格斗运动（击剑）的研究。需要进一步的研究来探索短期 RSH 在格斗运动中的有效性，采用更稳健的研究设计（例如，具有足够统计能力的随机对照试验），因为 RSH 的模式适合大多数格斗运动（例如，摔跤、拳击）的身体和生理需求。
