Bao Ran, Chen Sitong, Kastelic Kaja, Drenowatz Clemens, Li Minghui, Zhang Jialin, Wang Lei
Centre for Active Living and Learning, School of Education, The University of Newcastle, Newcastle 2308, Australia.
Institute for Health and Sport, Victoria University, Melbourne 8001, Australia.
Children (Basel). 2022 Apr 8;9(4):531. doi: 10.3390/children9040531.
It has previously been shown that the International Fitness Scale (IFIS) is a reliable and valid instrument when used in numerous regions and subgroups, but it remains to be determined whether the IFIS is a reliable instrument for use with Chinese children and adolescents. If the reliability of the IFIS can be verified, populational surveillance and monitoring of physical fitness (PF) can easily be conducted. This study aimed to test the reliability of the IFIS when used with Chinese children and adolescents.
The convenience sampling method was used to recruit study participants. In total, 974 school-aged children and adolescents between 11 and 17 years of age were recruited from three cities in Southeast China: Shanghai, Nanjing and Wuxi. The study participants self-reported demographic data, including age (in years) and sex (boy or girl). The participants completed the questionnaire twice within a two-week interval.
A response rate of 95.9% resulted in a sample of 934 participants (13.7 ± 1.5 years, 47.4% girls) with valid data. On average, the participants were 13.7 ± 1.5 years of age. The test-retest weighted kappa coefficients for overall fitness, cardiorespiratory fitness, muscle fitness, speed and agility and flexibility were 0.52 (Std. errs. = 0.02), 0.51 (Std. errs. = 0.02), 0.60 (Std. errs. = 0.02), 0.55 (Std. errs. = 0.02) and 0.55 (Std. errs. = 0.02), respectively.
The International Fitness Scale was found to have moderate reliability in the assessment of (self-reported) physical fitness in Chinese children and adolescents. In the future, the validity of the IFIS should be urgently tested in Chinese subgroup populations.
此前已有研究表明，国际体能量表（IFIS）在众多地区和亚组中使用时是一种可靠且有效的工具，但IFIS对于中国儿童和青少年而言是否为可靠工具仍有待确定。若能验证IFIS的可靠性，便可轻松开展体能的人群监测。本研究旨在测试IFIS用于中国儿童和青少年时的可靠性。
采用便利抽样法招募研究参与者。共从中国东南部三个城市（上海、南京和无锡）招募了974名11至17岁的学龄儿童和青少年。研究参与者自行报告人口统计学数据，包括年龄（岁）和性别（男或女）。参与者在两周内间隔完成两次问卷。
95.9%的回复率产生了一个包含934名参与者（年龄13.7±1.5岁，47.4%为女孩）的有效数据样本。参与者平均年龄为13.7±1.5岁。总体体能、心肺适能、肌肉适能、速度与敏捷性以及柔韧性的重测加权kappa系数分别为0.52（标准误差=0.02）、0.51（标准误差=0.02）、0.60（标准误差=0.02）、0.55（标准误差=0.02）和0.55（标准误差=0.02）。
国际体能量表在中国儿童和青少年（自我报告）体能评估中具有中等可靠性。未来，应尽快在中国亚组人群中测试IFIS的有效性。
