Kasović Mario, Štefan Lovro, Petrić Vilko, Štemberger Vesna, Blažević Iva
Department of General and Applied Kinesiology, Faculty of Kinesiology, University of Zagreb, Zagreb, Croatia.
Department of Sport Motorics and Methodology in Kinanthropology, Faculty of Sports Studies, Masaryk University, Brno, Czechia.
Front Physiol. 2022 Mar 10;13:784787. doi: 10.3389/fphys.2022.784787. eCollection 2022.
The main purpose of the study was to define optimal criterion-referenced cut-points for cardiorespiratory fitness (CRF) associated with overweight/obesity. In this cross-sectional study, participants were 1,612 children aged 7-14 years (mean age ± SD = 9.7 ± 2.4 years; 52.5% girls). CRF was assessed by the Maximal multistage 20-m shuttle run test, from which maximal oxygen uptake (VOmax) was estimated. Anthropometric indices included body-mass index (BMI), waist circumference (WC), and waist-to-height ratio (WHtR). Receiver operating characteristic (ROC) curves were performed to determine cut-off points. In boys, the optimal cut-off points of CRF in defining overweight/obesity for BMI, WC, and WHtR were 44.6, 46.4, and 46.9 mlO/kg/min. The areas under the curves (AUC) were 0.83 (95% CI 0.78-0.88, < 0.001), 0.77 (95% CI 0.71-0.83, < 0.001), and 0.90 (95% CI 0.86-0.93, < 0.001). In girls, the optimal cut-off points were 41.0, 40.8, and 40.7 mlO/kg/min for BMI, WC, and WHtR, with the AUCs of 0.86 (95% CI 0.82-0.90, < 0.001), 0.83 (95% CI 0.79-0.88), and 0.88 (95% CI 0.84-0.93, < 0.001). In conclusion, our newly developed cut-off points for CRF assessed by the Maximal multistage 20-m shuttle run test may adequately detect primary school-aged boys and girls with general and abdominal obesity.
该研究的主要目的是确定与超重/肥胖相关的心肺适能（CRF）的最佳标准参照切点。在这项横断面研究中，参与者为1612名7至14岁的儿童（平均年龄±标准差=9.7±2.4岁；52.5%为女孩）。通过最大多级20米穿梭跑测试评估CRF，并据此估算最大摄氧量（VOmax）。人体测量指标包括体重指数（BMI）、腰围（WC）和腰高比（WHtR）。绘制受试者工作特征（ROC）曲线以确定切点。在男孩中，CRF用于定义BMI、WC和WHtR超重/肥胖的最佳切点分别为44.6、46.4和46.9毫升氧/千克/分钟。曲线下面积（AUC）分别为0.83（95%置信区间0.78 - 0.88，P < 0.001）、0.77（95%置信区间0.71 - 0.83，P < 0.001）和0.90（95%置信区间0.86 - 0.93，P < 0.001）。在女孩中，BMI、WC和WHtR的最佳切点分别为41.0、40.8和40.7毫升氧/千克/分钟，AUC分别为0.86（95%置信区间0.82 - 0.90，P < 0.001）、0.83（95%置信区间0.79 - 0.88）和0.88（95%置信区间0.84 - 0.93，P < 0.001）。总之，我们通过最大多级20米穿梭跑测试新制定的CRF切点可能足以检测出小学年龄段的肥胖男孩和女孩，包括全身性肥胖和腹部肥胖。
