Nguyen Thanh, Obeid Joyce, Timmons Brian W
Children's Exercise and Nutrition Centre, Chedoke Hospital, McMaster University, Hamilton, Ontario, Canada.
Pediatr Exerc Sci. 2011 May;23(2):250-60. doi: 10.1123/pes.23.2.250.
The purpose of this study was to determine the reliability of short-term power output, heart rate (HR) response during and after a treadmill test, and time to complete a 25-m dash in healthy preschool children. Thirty-two 3- to 5-year-old boys and girls completed two sessions approximately one week apart. Intraclass correlation coefficient (ICC) and coefficient of variation (CV) were calculated to evaluate reliability. Power output was found to be reliable with ICCs ranging from 0.83 to 0.93 and CVs from 8.1 to 9.7%. Time to complete the 25-m dash was highly reliable (ICC = 0.91, CV = 3.7%). Reliability for HR at submaximal exercise (ICC = 0.28, CV = 18.8%) and HR recovery (ICC = 0.42, CV = 14.0%) was not as strong. These findings should assist in determining appropriate fitness tests for preschoolers.
本研究的目的是确定健康学龄前儿童在跑步机测试期间及之后的短期功率输出、心率（HR）反应以及完成25米短跑的时间的可靠性。32名3至5岁的男孩和女孩大约相隔一周完成了两个测试环节。计算组内相关系数（ICC）和变异系数（CV）以评估可靠性。发现功率输出具有可靠性，ICC范围为0.83至0.93，CV为8.1至9.7%。完成25米短跑的时间具有高度可靠性（ICC = 0.91，CV = 3.7%）。亚极量运动时心率的可靠性（ICC = 0.28，CV = 18.8%）和心率恢复的可靠性（ICC = 0.42，CV = 14.0%）则没那么强。这些发现应有助于确定适合学龄前儿童的体能测试。
