Lee S J, Arslanian S A
Division of Pediatric Endocrinology, Metabolism and Diabetes Mellitus, Weight Management & Wellness Center, Children's Hospital of Pittsburgh, University of Pittsburgh School of Medicine, Pittsburgh, PA 15213, USA.
Eur J Clin Nutr. 2007 Apr;61(4):561-5. doi: 10.1038/sj.ejcn.1602541. Epub 2006 Oct 4.
The purpose of this study was to determine whether cardiorespiratory fitness (CRF) is associated with lower abdominal adiposity in youth. Subjects included healthy 61 African-American and 52 white children and adolescents (age: 8-17 years). Body composition was measured by dual-energy X-ray absorptiometry and computed tomography. CRF (VO(2max)) was assessed using a graded maximal treadmill test. CRF was inversely related (P<0.05) to total adiposity, waist circumference, and visceral and abdominal subcutaneous adipose tissue (AT) independent of race. These findings remained significant (P<0.05) after adjusting for age, gender and pubertal status. Multiple regression analyses revealed that CRF is an independent contributor (P<0.05) of waist circumference, and visceral and abdominal subcutaneous AT after accounting for age, pubertal status, gender and body mass index percentile. Our observation suggest that in youth, CRF is associated with lower visceral and abdominal subcutaneous AT, and reinforces the notion that youth should engage in regular physical activity to improve aerobic fitness and reduce abdominal adiposity.
本研究的目的是确定心肺适能（CRF）是否与青少年的腹部脂肪含量较低有关。研究对象包括61名健康的非裔美国儿童和青少年以及52名白人儿童和青少年（年龄：8 - 17岁）。通过双能X线吸收法和计算机断层扫描测量身体成分。使用分级运动平板试验评估CRF（最大摄氧量）。无论种族如何，CRF（最大摄氧量）与总体脂肪量、腰围、内脏及腹部皮下脂肪组织（AT）均呈负相关（P<0.05）。在对年龄、性别和青春期状态进行调整后，这些结果仍然显著（P<0.05）。多元回归分析显示，在考虑年龄、青春期状态、性别和体重指数百分位数后，CRF是腰围、内脏及腹部皮下脂肪组织的独立影响因素（P<0.05）。我们的观察结果表明，在青少年中，CRF与较低的内脏及腹部皮下脂肪组织有关，并强化了青少年应进行规律体育活动以提高有氧适能和减少腹部脂肪的观念。
