Reinforcing value of interval and continuous physical activity in children
Reinforcing value of interval and continuous physical activity in children
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DOI：
10.1016/j.physbeh.2009.04.006
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发表时间：
2009-08-04
影响因子：
2.9
通讯作者：
Roemmich, James N.
中科院分区：
文献类型：
--
作者：
Barkley, Jacob E.;Epstein, Leonard H.;Roemmich, James N.
在玩耍过程中，孩子们会进行短暂的剧烈活动，就像间歇训练一样。这种对间歇型活动的自然偏好可能对制定最具激励性的身体活动类型具有重要意义，但儿童以间歇或连续方式进行身体活动的动机尚未得到研究。在本研究中，确定了 10 +/- 1.3 岁男孩 (n = 16) 和女孩 (n = 16) 的通气阈值 (VT) 和 VO2 峰值。另一天，孩子们在自行车测力计上以 20% VT 进行间歇和连续恒定负荷身体活动方案的采样。身体活动方案与能量消耗相匹配。然后，孩子们使用渐进式固定比率计划完成操作按钮按下任务，以评估间歇与连续体力活动的相对强化值（RRV）。为获得间隔或连续体力活动的访问而执行的按钮按下次数以及最大输出 (O(max)) 是主要结果变量。孩子们按下按钮的次数更多（P
During play children engage in short bouts of intense activity, much like interval training. This natural preference for interval-type activity may have important implications for prescribing the most motivating type of physical activity, but the motivation of children to be physically active in interval or Continuous fashion has not yet been examined. in the present study, ventilatory threshold (VT) and VO2 peak were determined in boys (n = 16) and girls (n = 16) age 10 +/- 1.3 years. Children sampled interval and Continuous constant-load physical activity protocols on a cycle ergometer at 20% VT on another day. The physical activity protocols were matched for energy expenditure. Children then completed an operant button pressing task using a progressive fixed ratio schedule to assess the relative reinforcing Value (RRV) of interval versus continuous physical activity. The number of button presses performed to gain access in interval or continuous physical activity and Output maximum (O(max)) were the Primary Outcome Variables. Children performed more button presses (P