Quinart Sylvain, Mougin Fabienne, Simon-Rigaud Marie-Laure, Nicolet-Guénat Marie, Nègre Véronique, Regnard Jacques
Laboratory of Prognostic Marker and Regulatory Factor of Cardiovascular Disease, IFR 133, University of Franche-Comte, France; Pediatric Obesity Prevention and Rehabilitation Department, University Hospital of Besançon, France.
Laboratory of Prognostic Marker and Regulatory Factor of Cardiovascular Disease, IFR 133, University of Franche-Comte, France; Sport Science University, University of Franche-Comte, France.
J Sci Med Sport. 2014 Sep;17(5):521-5. doi: 10.1016/j.jsams.2013.07.010. Epub 2013 Aug 12.
Evaluation of cardiorespiratory fitness in obese adolescents is necessary to develop personalised retraining programmes. We aimed to measure cardiorespiratory fitness using 3 field tests, and to evaluate their validity and sensitivity compared to values obtained by laboratory tests.
Longitudinal interventional study in obese adolescents admitted to a rehabilitation centre for a 9-month programme of obesity management.
A 12-min walk/run test, an adapted 20 m shuttle walk-run test (starting speed 4 km h(-1), increments of 0.5 km h(-1)min(-1)) and a 4-level submaximal cycle ergometer test were performed to estimate respectively distance covered in 12 min, maximum speed and maximal aerobic power.
Thirty adolescents aged 14.2 ± 1.6 years were included. After 9 months intervention, we observed a significant reduction in body mass index, and an increase in peak VO2 and field test results. We observed significant correlations between pre- and post-intervention values of peak VO2 and distance covered in 12 min (r=0.70 pre; r=0.82 post), maximum speed (r=0.80 pre; r=0.83 post) and maximal aerobic power (r=0.71 pre; r=0.84 post). Multiple linear regression made it possible to estimate peak VO2 based on results from the 3 field tests using prediction equations specific to a population of obese adolescents.
These field tests, including the adapted 20 m shuttle walk-run test, adequately assess cardiorespiratory fitness in obese adolescents, and are sensitive to changes over time. Predictive equations including BMI are useful in clinical practice to predict peak VO2 in these patients.
评估肥胖青少年的心肺适能对于制定个性化的康复训练计划很有必要。我们旨在通过三项实地测试来测量心肺适能，并与实验室测试所得值相比，评估其有效性和敏感性。
对入住康复中心接受为期9个月肥胖管理计划的肥胖青少年进行纵向干预研究。
进行12分钟步行/跑步测试、改良的20米往返跑测试（起始速度4 km/h，每分钟递增0.5 km/h）和四级次最大运动强度的蹬车测试，分别估计12分钟内行走的距离、最大速度和最大有氧功率。
纳入了30名年龄为14.2±1.6岁的青少年。经过9个月的干预，我们观察到体重指数显著降低，峰值摄氧量和实地测试结果增加。我们观察到干预前后峰值摄氧量与12分钟内行走距离（干预前r = 0.70；干预后r = 0.82）、最大速度（干预前r = 0.80；干预后r = 0.83）和最大有氧功率（干预前r = 0.71；干预后r = 0.84）之间存在显著相关性。多元线性回归使得能够根据针对肥胖青少年群体的预测方程，基于三项实地测试的结果来估计峰值摄氧量。
这些实地测试，包括改良的20米往返跑测试，能够充分评估肥胖青少年的心肺适能，并且对随时间的变化敏感。包含体重指数的预测方程在临床实践中有助于预测这些患者的峰值摄氧量。
