The validity was investigated of 20-MST (20 Metre Endurance Shuttle Run Test) and PWC170 (Physical Working Capacity) field tests with laboratory-measured peak oxygen uptake (VO2peak) in a multiracial UK population of 12-year olds: 103 subjects completed the 20-MST and 96 of these completed the PWC170. To assess validity, a laboratory treadmill test was completed by ten boys and ten girls who had performed both field tests. VO2peak was 43.8 ml kg-1 min-1 for boys and 38.5 ml kg-1 min-1 for girls. Pearson product-moment correlation showed 20-MST to be a reliable measure of cardiorespiratory fitness (r = 0.83, boys; r = 0.76, girls, P less than 0.03), while correlations with PWC170 were lower (r = 0.64, boys; r = 0.54, girls) and not significant. The 20-MST was consistent in retest (n = 20) - reliability coefficients r = 0.73, boys; r = 0.88, girls; P less than 0.01. The results suggest 20-MST is a valid, measure of fitness in this population when compared with VO2peak. PWC170 is less valid, possibly due to cultural and social backgrounds. The cycle test was inappropriate in this population, especially for girls unaccustomed to exercise and cycling. The 20-MST test is recommended for large groups of children when facilities are limited. It requires limited skill or habituation and is relatively non-invasive.
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机译：在多种族的12岁英国人群中，采用实验室测量的峰值摄氧量（VO2peak）对20-MST（20米耐力穿梭跑测试）和PWC170（物理工作能力）现场测试进行了调查：103名受试者完成了其中20个MST和96个完成了PWC170。为了评估有效性，完成了两个现场测试的十个男孩和十个女孩完成了实验室跑步机测试。男孩的VO2peak为43.8 ml kg-1 min-1，女孩的VO2peak为38.5 ml kg-1 min-1。皮尔逊乘积矩相关性表明20-MST是衡量心肺健康的可靠指标（男孩= r = 0.83；男孩； r = 0.76；女孩，P小于0.03），而与PWC170的相关性较低（男孩= r = 0.64）。 = 0.54，女孩）且不显着。 20-MST在复测中是一致的（n = 20）-可靠性系数r = 0.73，男孩； r = 0.88，女孩； P小于0.01。结果表明，与VO2peak相比，20-MST是该人群健康度的有效度量。 PWC170的有效性较差，可能是由于文化和社会背景所致。自行车测试不适用于该人群，特别是对于不习惯运动和骑自行车的女孩。在设施有限的情况下，建议大批儿童使用20-MST测试。它需要有限的技能或习惯，并且是相对无创的。
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