Participants attended one of 2 classes selected from one school, which were randomly assigned to an intervention group (n = 23, 11.2 [0.5] y) consisting of cycling on classroom-based ergometers during 3 lessons per week at a self-selected intensity and a control group (n = 21, 11.3 [0.5] y) not receiving any treatment. Prior to and after the 5-month intervention period, physical fitness (with ventilatory threshold as primary outcome), body composition, and parameters of glucose and lipid metabolism were assessed.
A significant time × group interaction was revealed for ventilatory threshold (P = .035), respiratory compensation point (P = .038), gross efficiency (P < .001), maximal aerobic power (P = .024), triglycerides (P = .041), and blood glucose levels (P = .041) with benefits for the intervention group. Peak oxygen uptake and body composition were not affected.
Children\'s aerobic capacity benefited from the low-intensity school-based cycling intervention, while body composition and most blood parameters were not affected. The intervention using cycle ergometers is a feasible and time-saving strategy to elevate submaximal physical fitness.
参与者参加了从一所学校选出的两个班级之一,将其随机分配到一个干预组(n=23,11.2[0.5]y),其中包括每周3节课以自行选择的强度骑自行车和一个对照组(n=21,11.3[0.5]y),不接受任何治疗.在5个月干预期之前和之后,身体素质(以通气阈值为主要结果),身体成分,并对糖脂代谢参数进行了评估。
显示通气阈值的显着时间×组相互作用(P=.035),呼吸补偿点(P=.038),总效率(P<.001),最大有氧能力(P=.024),甘油三酯(P=.041),和血糖水平(P=0.041)对干预组有益。峰值摄氧量和身体成分不受影响。
儿童的有氧能力得益于低强度学校自行车干预,而身体成分和大多数血液参数不受影响。使用自行车测力计进行干预是一种可行且节省时间的策略,可以提高亚最大的身体素质。