Usher Andrew, Babraj John
Dept of Sport and Exercise Science, Abertay University, Bell St, Dundee, DD1 1HG, Scotland.
Eur J Appl Physiol. 2025 Jan;125(1):261-271. doi: 10.1007/s00421-024-05594-0. Epub 2024 Sep 3.
Professional boxing is a sport that requires a high aerobic capacity to prevent fatigue and allow athletes to perform over 4-12 rounds. Typically, athletes will go into a heavy training period in a pre-bout camp lasting 6 to 9 weeks. This study investigates the impact of 3 weeks of repeated Wingate sprint interval training, performed on standard gym ergometer bikes, on skeletal muscle endurance and mitochondrial function.
Ten male professional boxers (age: 26 ± 4 years, height: 175 ± 5 cm, weight: 70 ± 5 kg) participated in the study. Baseline testing involved a NIRS monitor attached to the rectus femoris muscle prior to an incremental time to exhaustion test on a treadmill. After the treadmill test participants underwent a series of arterial occlusions to determine mitochondrial function post-volitional exhaustion. Participants then continued their own training for 3 weeks and then repeated baseline testing. After the second testing session, participants undertook three weekly sprint sessions consisting of 3 × 30 s maximal sprints with 60 s recovery. Testing was repeated 3 weeks later.
The time to exhaustion increased by > 6% after 3 weeks of sprint interval training as compared to baseline and control (p < 0.05). Skeletal muscle oxygen saturation (SmO) at exhaustion was increased by 5.5% after 3 weeks of sprint interval training as compared to baseline and control (p = 0.008). Skeletal muscle mitochondrial rate post exhaustion was increased by 160% after 3 weeks of sprint interval training as compared to baseline and control (p < 0.001).
The study demonstrated that SIT led to increased incremental time to exhaustion, higher SmO levels at volitional exhaustion and increased mitochondrial rates in professional boxers. These findings suggest that SIT should be an integral part of a boxe's conditioning regimen to improve performance and safety within the ring.
职业拳击是一项需要高有氧能力以防止疲劳并使运动员能够进行4至12轮比赛的运动。通常，运动员会在赛前训练营进行为期6至9周的高强度训练期。本研究调查了在标准健身房测力计自行车上进行3周重复的温盖特冲刺间歇训练对骨骼肌耐力和线粒体功能的影响。
10名男性职业拳击手（年龄：26±4岁，身高：175±5厘米，体重：70±5千克）参与了该研究。基线测试包括在跑步机上进行递增性疲劳测试前，将近红外光谱监测仪附着在股直肌上。跑步机测试后，参与者接受一系列动脉闭塞测试以确定自愿性疲劳后的线粒体功能。然后参与者继续他们自己的训练3周，然后重复基线测试。在第二次测试 session 后，参与者进行了为期三周的冲刺训练，包括3组每组30秒的最大冲刺，每组间休息60秒。3周后重复测试。
与基线和对照组相比，冲刺间歇训练3周后疲劳时间增加了>6%（p<0.05）。与基线和对照组相比，冲刺间歇训练3周后疲劳时骨骼肌氧饱和度（SmO）增加了5.5%（p=0.008）。与基线和对照组相比，冲刺间歇训练3周后疲劳后骨骼肌线粒体速率增加了160%（p<0.001）。
该研究表明，冲刺间歇训练导致职业拳击手递增性疲劳时间增加、自愿性疲劳时SmO水平升高以及线粒体速率增加。这些发现表明，冲刺间歇训练应该是拳击手训练方案的一个组成部分，以提高在拳击台上的表现和安全性。
