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首页> 外文期刊>Open access Journal of Sports Medicine >Effects of 16-week high-intensity interval training using upper and lower body ergometers on aerobic fitness and morphological changes in healthy men: a preliminary study
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Effects of 16-week high-intensity interval training using upper and lower body ergometers on aerobic fitness and morphological changes in healthy men: a preliminary study

机译：上，下肢测力计进行16周高强度间歇训练对健康男性有氧健身和形态变化的影响：初步研究

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Abstract: It is unclear whether combined leg and arm high-intensity interval training (HIIT) improves fitness and morphological characteristics equal to those of leg-based HIIT programs. The aim of this study was to compare the effects of HIIT using leg-cycling (LC) and arm-cranking (AC) ergometers with an HIIT program using only LC. Effects on aerobic capacity and skeletal muscle were analyzed. Twelve healthy male subjects were assigned into two groups. One performed LC-HIIT (n=7) and the other LC- and AC-HIIT (n=5) twice weekly for 16 weeks. The training programs consisted of eight to 12 sets of >90% VO2 (the oxygen uptake that can be utilized in one minute) peak for 60 seconds with a 60-second active rest period. VO2 peak, watt peak, and heart rate were measured during an LC incremental exercise test. The cross-sectional area (CSA) of trunk and thigh muscles as well as bone-free lean body mass were measured using magnetic resonance imaging and dual-energy X-ray absorptiometry. The watt peak increased from baseline in both the LC (23%±38%; P<0.05) and the LC–AC groups (11%±9%; P<0.05). The CSA of the quadriceps femoris muscles also increased from baseline in both the LC (11%±4%; P<0.05) and the LC–AC groups (5%±5%; P<0.05). In contrast, increases were observed in the CSA of musculus psoas major (9%±11%) and musculus anterolateral abdominal (7%±4%) only in the LC–AC group. These results suggest that a combined LC- and AC-HIIT program improves aerobic capacity and muscle hypertrophy in both leg and trunk muscles.
机译：摘要：目前尚不清楚腿部和手臂高强度间歇训练（HIIT）的结合是否能改善腿部HIIT程序的适应性和形态特征。本研究的目的是将仅使用LC的HIIT程序与使用腿部骑行（LC）和曲柄（AC）测功器的HIIT的效果进行比较。分析了对有氧运动能力和骨骼肌的影响。将十二名健康的男性受试者分为两组。一个每周执行两次LC-HIIT（n = 7），另一个执行一次LC-ACIT（n = 5），持续16周。训练计划包括8到12组> 90％VO2（在一分钟内可以吸收的氧气）峰值，持续60秒，并有60秒的活跃休息时间。在LC增量运动测试期间测量VO2峰值，瓦特峰值和心率。使用磁共振成像和双能X射线吸收法测量躯干和大腿肌肉的横截面积（CSA）以及无骨的瘦体重。 LC（23％±38％; P <0.05）和LC–AC组（11％±9％; P <0.05）的瓦特峰值均比基线增加。 LC（11％±4％; P <0.05）和LC-AC组（5％±5％; P <0.05）的股四头肌肌肉的CSA也都比基线增加。相比之下，仅在LC-AC组中，大肌小腰大肌（9％±11％）和小腹前外侧腹（7％±4％）的CSA升高。这些结果表明，组合的LC-和AC-HIIT程序可改善腿部和躯干肌肉的有氧运动能力和肌肉肥大。

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