Verification of Maximal Oxygen Uptake in Obese and Nonobese Children.
Verification of Maximal Oxygen Uptake in Obese and Nonobese Children.
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DOI：
10.1249/mss.0000000000001170
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发表时间：
2017-04
影响因子：
4.1
通讯作者：
Babb TG
中科院分区：
文献类型：
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作者：
Bhammar DM;Stickford JL;Bernhardt V;Babb TG
本研究的目的是在10 - 12岁的非肥胖和肥胖儿童中，检查在最高工作率的105%下进行的超大恒定负荷验证试验是否会产生更高的V_（max）。9名非肥胖（BMI百分位数：57.5 ± 23.2）和9名肥胖（BMI百分位数：97.9 ± 1.4）儿童完成了两项测试方案，其中包括增量测试，15分钟后进行超大恒定负荷验证测试。验证试验中达到的V_（max）（非肥胖：1.71 ± 0.31和肥胖：1.94 ± 0.47 L/min）显著高于增量试验中达到的V_（max）（非肥胖：1.57 ± 0.27和肥胖：1.84 ± 0.48 L/min; P < 0.001）。没有显著的相互作用（组（即，非肥胖对肥胖）×测试（即，递增vs验证）），表明肥胖对验证和递增V ~ O2 max之间的差异无影响（P = 0.747）。在肥胖儿童中，验证测试产生的V_（max）值显著高于增量测试。在非肥胖儿童中也观察到了类似的结果。超最大恒定负荷验证是一种时间效率高、耐受性好的方法，可用于确定非肥胖和肥胖儿童的最高VO 2。
The purpose of this study was to examine whether a supramaximal constant load verification test at 105% of the highest work rate would yield a higher V̇O2max when compared with an incremental test in 10 – 12 year old nonobese and obese children. Nine non-obese (BMI percentile: 57.5 ± 23.2) and nine obese (BMI percentile: 97.9 ± 1.4) children completed a two-test protocol that included an incremental test followed 15 minutes later by a supramaximal constant-load verification test. The V̇O2max achieved in verification testing (Nonobese: 1.71 ± 0.31 and Obese: 1.94 ± 0.47 L/min) was significantly higher than that achieved during the incremental test (Nonobese: 1.57 ± 0.27 and Obese: 1.84 ± 0.48 L/min; P < 0.001). There was no significant interaction (group (i.e., nonobese versus obese) × test (i.e., incremental versus verification)), suggesting that there was no effect of obesity on the difference between verification and incremental V̇O2max (P = 0.747). A verification test yielded significantly higher values of V̇O2max when compared with the incremental test in obese children. Similar results were observed in nonobese children. Supramaximal constant-load verification is a time-efficient and well-tolerated method for identifying the highest V̇O2 in nonobese and obese children.