Department of Pediatrics, All India Institute of Medical Sciences, New Delhi, India.
Division of Pediatric Endocrinology, Department of Pediatrics, All India Institute of Medical Sciences, New Delhi, 110029, India.
Indian J Pediatr. 2023 Dec;90(12):1216-1222. doi: 10.1007/s12098-022-04311-z. Epub 2022 Sep 6.
To assess cardiorespiratory fitness in children and adolescents with overweight/obesity using the Kasch pulse recovery (KPR) test, and its correlation with severity of obesity, insulin resistance, and blood pressure (BP).
This is a retrospective analysis of baseline data from a study evaluating the efficacy of yoga for reduction of body mass index (BMI) in children aged 8-15 y with overweight/obesity. KPR three-minute step test was done. Children were classified into cardiorespiratory fitness categories based on the post-KPR heart rate (HR); the maximal oxygen consumption (VO max) was calculated, and the correlation analysis was done.
One hundred fifty-five children with mean age of 11.6 ± 1.8 y and mean BMI of 26.2 ± 4.1 kg/m were included. Mean post-KPR-HR and calculated VO max were 119 ± 14 per minute and 48.7 ± 5.6 mL/kg/min, respectively. In children < 13 y, cardiorespiratory fitness was excellent or very good in 28%, good or sufficient in 58%, and poor or very poor in 14%. BMI, waist circumference (WC), resting HR, systolic BP, and homeostatic model of insulin resistance (HOMA-IR) were higher among those with poor/very poor fitness, with WC z score being statistically significant (p = 0.015). Post-KPR-HR showed positive correlation with BMI z score (r = 0.16, p = 0.044), WC z score (r = 0.21, p = 0.011), and HOMA-IR (r = 0.22, p = 0.012).
In children with overweight/obesity, 14% had poor cardiorespiratory fitness. Post-KPR-HR and calculated VO max had good correlation with measures of obesity and HOMA-IR. Further studies evaluating cardiorespiratory fitness and normative data of VO max for Indian children are warranted.
使用卡斯脉搏恢复（KPR）试验评估超重/肥胖儿童和青少年的心肺功能，并评估其与肥胖严重程度、胰岛素抵抗和血压（BP）的相关性。
这是一项回顾性分析，对一项评估瑜伽对 8-15 岁超重/肥胖儿童体重指数（BMI）降低效果的研究的基线数据进行了分析。进行了 KPR 三分钟台阶测试。根据 KPR 后心率（HR）对儿童进行心肺功能分类；计算最大耗氧量（VO max），并进行相关性分析。
共纳入 155 名平均年龄为 11.6±1.8 岁、平均 BMI 为 26.2±4.1 kg/m²的儿童。平均 KPR 后 HR 和计算的 VO max 分别为 119±14 次/分钟和 48.7±5.6 mL/kg/min。在 13 岁以下的儿童中，心肺功能优秀或非常好的占 28%，良好或充足的占 58%，差或非常差的占 14%。在心肺功能差或非常差的儿童中，BMI、腰围（WC）、静息 HR、收缩压和稳态模型胰岛素抵抗（HOMA-IR）均较高，WC z 分数有统计学意义（p=0.015）。KPR 后 HR 与 BMI z 分数呈正相关（r=0.16，p=0.044），与 WC z 分数（r=0.21，p=0.011）和 HOMA-IR（r=0.22，p=0.012）也呈正相关。
在超重/肥胖的儿童中，14%的儿童心肺功能差。KPR 后 HR 和计算的 VO max 与肥胖和 HOMA-IR 的测量值有良好的相关性。需要进一步研究评估印度儿童的心肺功能和 VO max 的正常值。
