Dept of Kinesiology, Kansas State University, Manhattan, KS, USA.
J Phys Act Health. 2010 Jul;7(4):475-83. doi: 10.1123/jpah.7.4.475.
This study evaluated the effect of elimination and nonelimination games on objectively measured physical activity and psychosocial responses in children.
A total of 29 children in grades 4 to 6 (65.5% male; 10.5 +/- 1.0 years old) wore an accelerometer while participating in 2 elimination and 2 nonelimination games. Activity counts were collected using a 30-second epoch and converted to METs to determine minutes spent in sedentary behavior and light, moderate, vigorous, and moderate-to-vigorous physical activity. Self-efficacy, enjoyment, and peer-victimization were assessed on 4 occasions (before and after 2 elimination and 2 nonelimination games).
Overall, girls spent more time in sedentary behavior compared with boys. Children engaged in significantly more moderate-to-vigorous physical activity during nonelimination games compared with elimination games. Furthermore, children significantly increased self-efficacy after playing both game sessions. A significant interaction between type of game and time of measurement in the prediction of enjoyment showed that enjoyment modestly increased after elimination games and slightly decreased after nonelimination games. There were no differences in peer-victimization.
This study provides preliminary evidence that nonelimination games provide more moderate-to-vigorous physical activity compared with elimination games, but elimination games may be more enjoyable.
本研究评估了淘汰赛和非淘汰赛对儿童客观测量的身体活动和心理社会反应的影响。
共有 29 名 4 至 6 年级的儿童（65.5%为男性；10.5±1.0 岁）在参加 2 场淘汰赛和 2 场非淘汰赛时佩戴了加速度计。使用 30 秒的时间间隔收集活动计数，并转换为 METs，以确定久坐行为以及轻、中、剧烈和中高强度身体活动所花费的时间。在 4 个时间点（参加 2 场淘汰赛和 2 场非淘汰赛前后）评估自我效能感、享受度和同伴侵害情况。
总体而言，女孩比男孩花费更多的时间处于久坐行为中。与淘汰赛相比，儿童在非淘汰赛中进行了更多的中高强度身体活动。此外，儿童在参加完这两个游戏阶段后，自我效能感显著提高。游戏类型和测量时间在预测享受度方面存在显著的交互作用，表明在淘汰赛之后，享受度适度增加，而非淘汰赛之后则略有下降。同伴侵害情况没有差异。
本研究初步表明，与淘汰赛相比，非淘汰赛提供了更多的中高强度身体活动，但淘汰赛可能更有趣。
