Wong Patricia C H, Chia Michael Y H, Tsou Ian Y Y, Wansaicheong Gervais K L, Tan Benedict, Wang John C K, Tan John, Kim Chung Gon, Boh Gerald, Lim Darren
Physical Education & Sports Science Academic Group, National Institute of Education, Nanyang Technological University, Singapore.
Ann Acad Med Singap. 2008 Apr;37(4):286-93.
Developing effective exercise programmes for the paediatric population is a strategy for decreasing obesity and is expected to help in eventually limiting obesity-associated long-term health and societal impact. In this study, the effects of a 12-week twice weekly additional exercise training, which comprised a combination of circuit-based resistance training and aerobic exercises, in additional to typical physical education sessions, on aerobic fitness, body composition and serum C-reactive protein (CRP) and lipids were analysed in 13- to 14-year-old obese boys contrasted with a control group.
Both the exercise group (EG, n = 12) and control group (CG, n = 12) participated in the typical 2 sessions of 40-minute physical education (PE) per week in schools, but only EG participated in additional 2 sessions per week of 45 to 60 minutes per session of exercise training, which comprised a combination of circuit-based resistance training and aerobic exercises maintained at 65% to 85% maximum heart rate (HRmax = 220 - age). Body composition was measured using dual energy X-ray absorptiometry (DEXA). Fasting serum CRP and blood lipids were analysed pre- and postexercise programme. Aerobic fitness was measured by an objective laboratory submaximal exercise test, PWC170 (Predicted Work Capacity at HR 170 bpm).
Exercise training significantly improved lean muscle mass, body mass index, fitness, resting HR, systolic blood pressure and triglycerides in EG. Serum CRP concentrations were elevated at baseline in both groups, but training did not result in a change in CRP levels. In the CG, body weight increased significantly at the end of the 12-week period.
This study supports the value of an additional exercise training programme, beyond the typical twice weekly physical education classes, to produce physiological benefits in the management of obesity in adolescents, including prevention of weight gain.
为儿童群体制定有效的运动计划是减少肥胖的一项策略，有望最终有助于限制肥胖相关的长期健康和社会影响。在本研究中，对比对照组分析了13至14岁肥胖男孩参加为期12周、每周两次的额外运动训练（包括循环抗阻训练和有氧运动相结合）对有氧适能、身体成分、血清C反应蛋白（CRP）和血脂的影响，该训练是在常规体育课之外进行的。
运动组（EG，n = 12）和对照组（CG，n = 12）均每周在学校参加两节40分钟的常规体育课，但只有运动组每周额外参加两节45至60分钟的运动训练，训练包括循环抗阻训练和有氧运动相结合，运动强度维持在最大心率的65%至85%（最大心率=220 - 年龄）。使用双能X线吸收法（DEXA）测量身体成分。在运动计划前后分析空腹血清CRP和血脂。通过客观的实验室次极量运动测试PWC170（心率170次/分钟时的预测工作能力）测量有氧适能。
运动训练显著改善了运动组的瘦肌肉量、体重指数、适能、静息心率、收缩压和甘油三酯。两组的血清CRP浓度在基线时均升高，但训练并未导致CRP水平发生变化。在对照组中，12周结束时体重显著增加。
本研究支持了在每周两次的常规体育课之外增加运动训练计划对青少年肥胖管理产生生理益处的价值，包括预防体重增加。
Zotero 插件