GALENO research group, Department of Physical Education, Faculty of Education Sciences, University of Cadiz, Puerto Real, Spain.
Biomedical Research and Innovation Institute of Cádiz (INiBICA) Research Unit, Cádiz, Spain.
Scand J Med Sci Sports. 2020 Aug;30(8):1483-1496. doi: 10.1111/sms.13684. Epub 2020 Apr 29.
The aim was to examine the bidirectional association between cardiorespiratory fitness (CRF) and fatness in a 2-year longitudinal study conducted in young people. A total of 1082 children (512 females) and 727 adolescents (342 females) with complete data at baseline and follow-up were included. CRF was determined by the 20-m shuttle run test. Height and weight were measured, and body mass index and fat mass index (kg/m ) were calculated. Triceps and subscapular skinfolds were assessed to compute body fat percentage. Bidirectionality was tested by including CRF and each fatness index as exposures and outcomes, alternatively, in different regression models. CRF was prospectively associated with fatness index levels (ß from -0.186 to -0.528; P < .001), remaining significant in children after adjusting for baseline fatness indices. Fatness indices were prospectively associated with CRF (ß from -0.207 to -0.479; P < .001), with no substantial changes observed in children and female adolescents when baseline CRF was considered. Changes in CRF were prospectively associated with several fatness indices, regardless of body fatness at baseline (ß from -0.062 to -0.220; P < .05). Body fatness changes were associated with future CRF levels, independently of baseline CRF, especially in children of both sexes and male adolescents (ß from -0.079 to -0.260; P < .05). Overall, a bidirectional association was observed between CRF and fatness in children and adolescents. The attainment of optimal CRF and fatness levels in early ages should be promoted since it could result in favorable future fatness and CRF levels, respectively, which are two key determinants of health status.
在一项为期 2 年的青少年纵向研究中，考察心肺适能（CRF）与肥胖之间的双向关联。共纳入了 1082 名儿童（512 名女性）和 727 名青少年（342 名女性），他们在基线和随访时均有完整的数据。CRF 通过 20 米穿梭跑测试确定。测量身高和体重，并计算体重指数和脂肪量指数（kg/m ）。评估三头肌和肩胛下皮褶以计算体脂百分比。通过将 CRF 和每个肥胖指数作为暴露和结果，在不同的回归模型中交替包含，来测试双向性。CRF 与肥胖指数水平呈前瞻性相关（β从-0.186 到-0.528；P<.001），在调整基线肥胖指数后，在儿童中仍然显著。肥胖指数与 CRF 呈前瞻性相关（β从-0.207 到-0.479；P<.001），当考虑基线 CRF 时，在儿童和女性青少年中没有观察到实质性变化。CRF 的变化与几个肥胖指数呈前瞻性相关，无论基线时的体脂如何（β从-0.062 到-0.220；P<.05）。体脂变化与未来的 CRF 水平相关，独立于基线 CRF，尤其是在两性儿童和男性青少年中（β从-0.079 到-0.260；P<.05）。总体而言，在儿童和青少年中观察到 CRF 与肥胖之间存在双向关联。应促进在早期获得最佳的 CRF 和肥胖水平，因为这可能分别导致未来肥胖和 CRF 水平的改善，而这两个因素是健康状况的两个关键决定因素。
