Arias Téllez María José, Soto-Sánchez Johana Patricia, Weisstaub Sergio Gerardo
Universidad de Chile.
Nutr Hosp. 2018 Jan 10;35(1):44-49. doi: 10.20960/nh.1323.
To evaluate the association of physical fitness (PF) and cardiometabolic risk (CMR) with heart rate recovery time (ΔHRR) in Chilean school aged children.
Cross-sectional study in 478 6-9 years old children participants. We measured weight, height and abdominal circumference. Fitness was measured using the 6MWT, grip strength and leap forward without impulse tests; PF z-scores were calculated. Heart rate (HR) was monitored and recorded during the 6MWT. ΔHRR was calculated as the difference between HR before and one minute after test; blood glucose, insulin, triglycerides and HDL-cholesterol were measured. Waist circumference, CMR-z and HOMA were calculated.
Absolute ΔHRR and CMR-z measures in normal weight children were lower than in obese children (p < 0.05 and p < 0.01, respectively). In obese children, ΔHRR was also associated with grip strength/weight (r = -0.6, p < 0.01) and PF-z (r = -0.6, p = 0.04). Insulin and HOMA were significantly related to ΔHRR (r = 0.3, p < 0.001), especially in overweight and obese children. ΔHRR values were not associated with CMR-z.
A significant relationship between ΔHRR with fitness and insulin sensitivity in overweight and obese school children was found. We consider that these results support the need to measure these variables in overweight and obese children, in order to strengthen the need for early prevention.
评估智利学龄儿童的体能（PF）和心脏代谢风险（CMR）与心率恢复时间（ΔHRR）之间的关联。
对478名6 - 9岁儿童参与者进行横断面研究。我们测量了体重、身高和腹围。使用6分钟步行试验（6MWT）、握力和无冲动向前跳跃测试来测量体能；计算PF z分数。在6MWT期间监测并记录心率（HR）。计算ΔHRR为测试前和测试后一分钟的心率差值；测量血糖、胰岛素、甘油三酯和高密度脂蛋白胆固醇。计算腰围、CMR - z和稳态模型评估胰岛素抵抗指数（HOMA）。
正常体重儿童的绝对ΔHRR和CMR - z测量值低于肥胖儿童（分别为p < 0.05和p < 0.01）。在肥胖儿童中，ΔHRR还与握力/体重（r = -0.6，p < 0.01）和PF - z（r = -0.6，p = 0.04）相关。胰岛素和HOMA与ΔHRR显著相关（r = 0.3，p < 0.001），尤其是在超重和肥胖儿童中。ΔHRR值与CMR - z无关。
发现超重和肥胖学龄儿童的ΔHRR与体能和胰岛素敏感性之间存在显著关系。我们认为这些结果支持在超重和肥胖儿童中测量这些变量的必要性，以强化早期预防的需求。
