Centre for Research in Childhood Health, Institute of Sports Science and Clinical Biomechanics, University of Southern Denmark, Campusvej 55, DK-5230 Odense M, Denmark.
Prev Med. 2011 Sep;53(3):172-7. doi: 10.1016/j.ypmed.2011.06.007. Epub 2011 Jun 25.
This study investigated the effect of commuter cycling on cardiorespiratory fitness in men and women. Secondary outcomes included body fat and blood pressure measurements.
In February 2009, 48 volunteers from the Island of Funen, Denmark were randomly assigned to either "no change in lifestyle" or to "minimum 20 minutes of daily commuter cycling during 8 weeks". Maximal oxygen uptake was assessed directly during a progressive cycle-ergometer-test, sum of skinfolds was used as an estimate of body fat, and blood pressure was measured using a Dinamap monitor. Measurements were obtained at baseline and at the conclusion of the 8-week intervention program.
Six cyclists dropped out. After 8 weeks VO(2)max (mL O(2) min(-1)) and cardiorespiratory fitness (mL O(2) kg(-1) min(-1)) were significantly improved in the cycling group when compared to the control group. Delta change in VO(2)max between groups equaled 206 mL O(2) min(-1) (p=0.005) and delta change in cardiorespiratory fitness equaled 2.6 mL O(2) kg(-1) min(-1) (p=0.003). Body fatness changed more noticeable (p=0.026) in the cyclists (-12.3±7.3 mm) than in the controls (-0.2±7.1 mm).
VO(2)max and cardiorespiratory fitness were significantly improved and body fat reduced as a result of people engaging in 8 weeks of commuter cycling.
本研究旨在探讨通勤骑行对男性和女性心肺功能适应性的影响。次要结果包括体脂和血压测量。
2009 年 2 月，丹麦菲英岛的 48 名志愿者随机分为“生活方式无变化”或“8 周内每天至少进行 20 分钟通勤骑行”两组。最大摄氧量通过递增式踏车测力计测试直接评估，体脂估计采用皮肤褶皱总和，血压使用 Dinamap 监测仪测量。测量在基线和 8 周干预计划结束时进行。
6 名骑行者中途退出。8 周后，与对照组相比，骑行组的 VO₂max（mL O₂ min⁻¹）和心肺功能适应性（mL O₂ kg⁻¹ min⁻¹）显著提高。组间 VO₂max 的变化差值为 206 mL O₂ min⁻¹（p=0.005），心肺功能适应性的变化差值为 2.6 mL O₂ kg⁻¹ min⁻¹（p=0.003）。与对照组相比，骑行者的体脂减少更明显（p=0.026），减少了 12.3±7.3 毫米；而对照组仅减少了 0.2±7.1 毫米。
8 周的通勤骑行使人们的 VO₂max 和心肺功能适应性显著提高，体脂减少。
