Health Technology Lab, College of Arts, Media & Design; Bouvé College of Health Sciences, Northeastern University, Boston, MA, USA.
Department of Aging and Geriatric Research, University of Florida, Gainesville, FL, USA.
BMC Pediatr. 2021 Feb 15;21(1):80. doi: 10.1186/s12887-021-02528-z.
Excess post-exercise oxygen consumption (EPOC) of children could indicate the potential of an exercise therapy to treat or prevent obesity. However, EPOC as a result of playing active video games (AVG) has been poorly investigated. Therefore, we aimed to investigate the rapid component of EPOC of children with healthy weight and overweight/obesity (according to their BMI percentile) after playing AVGs that feature predominately upper body (UB) and whole-body (WB) movement.
Twenty-one children with healthy weight (BMI percentile < 85%) and with overweight/obesity (BMI percentile ≥ 85%) randomly underwent two 10-min AVG sessions (UB and WB). The heart rate (HR), minute ventilation (VE), oxygen consumption (VO) and carbon dioxide production (VCO) were recorded during exercise and post-exercise recovery period. For the rapid component of EPOC in each AVG session, measurements were recorded every 15 s for 5-min of post-exercise recovery. The rate of perceived exertion (RPE) was also measured immediately before and after each AVG play.
Children with overweight/obesity had a higher average of absolute VE, VO, and VCO than their healthy-weight counterparts (BMI percentile < 85%; n = 21) during post-exercise recovery. RPE, HR, and HR% were not different between the game sessions and weight groups. Children with overweight/obesity showed a higher absolute VO during EPOC than healthy-weight children in both game sessions, but relative VO was higher in healthy-weight children during EPOC. No differences were observed for EPOC between UB and WB sessions.
Children with overweight/obesity had a greater EPOC than healthy-weight children after AVG sessions in terms of absolute oxygen values, whereas healthy-weight children have higher EPOC considering relative VO when controlling for body mass. UB and WB AVGs induced a similar EPOC among children with healthy weight and overweight/obesity. As UB and WB AVGs induce the rapid component of EPOC in children regardless their weight status, AVGs could be used as an exercise method to treat and prevent child obesity.
儿童运动后过量耗氧量（EPOC）可表明运动疗法治疗或预防肥胖的潜力。然而，对于主动视频游戏（AVG）引起的 EPOC 研究甚少。因此，我们旨在研究健康体重和超重/肥胖（根据 BMI 百分位数）儿童在玩主要涉及上半身（UB）和全身（WB）运动的 AVG 后，EPOC 的快速成分。
21 名健康体重（BMI 百分位数<85%）和超重/肥胖（BMI 百分位数≥85%）的儿童随机进行两次 10 分钟的 AVG 测试（UB 和 WB）。在运动和运动后恢复期记录心率（HR）、分钟通气量（VE）、耗氧量（VO）和二氧化碳产生量（VCO）。对于每个 AVG 会话的 EPOC 快速成分，在运动后恢复期的 5 分钟内，每 15 秒记录一次测量值。在每次 AVG 游戏前后还测量了感觉用力程度（RPE）。
在运动后恢复期，超重/肥胖儿童的平均绝对 VE、VO 和 VCO 均高于健康体重儿童（BMI 百分位数<85%；n=21）。游戏会话和体重组之间的 RPE、HR 和 HR%没有差异。在两个游戏会话中，超重/肥胖儿童的 EPOC 期间绝对 VO 均高于健康体重儿童，但相对 VO 较高的是健康体重儿童。UB 和 WB 游戏会话之间的 EPOC 没有差异。
与健康体重儿童相比，超重/肥胖儿童在玩 AVG 游戏后，绝对氧值的 EPOC 更高，而当控制体重时，健康体重儿童的 EPOC 相对 VO 更高。健康体重和超重/肥胖儿童玩 UB 和 WB AVG 会引起相似的 EPOC。由于 UB 和 WB AVG 会引起儿童 EPOC 的快速成分，无论其体重状况如何，AVG 都可以用作治疗和预防儿童肥胖的运动方法。
