Español-Moya Mayra Nathalie, Ramírez-Vélez Robinson
Rev Esp Salud Publica. 2014 Mar-Apr;88(2):271-8. doi: 10.4321/S1135-57272014000200009.
The International Fitness Scale (IFIS a 5-item version) to assess physical activity levels in the European population was created as part of the framework of the EU-funded project HELENA Study "Healthy Lifestyle in Europe by Nutrition in Adolescence". The objective of this study was to evaluate the test-retest stability, internal consistency, proportion of agreement and applicability to Colombian young adults.
A total of 2.340 individuals (1.376 female and 964 male; age 18-30 years) Colombian completed the questionnaire IFIS. Intraclass correlation coefficients (ICC) and proportion of agreement were computed to assess the stability of the two test scores, with a period of 7 days between the two administrations. Cronbach alpha were calculated to assess the internal consistency of each scale and proportion of agreement was also calculated to measure the proportion of occasions that individuals gave the same score.
The Cronbach alpha coefficient is 0.80. The reliability scores of the IFIS were excellent (ICC range 0.90-0.96). The proportion of agreement for all individual items ranged from 77-86%. Mean (±SD) time for questionnaire completion during the assessment was 3 minutes 47 seconds (±2 min).
It appears to have high reliability and reproducibility. The questionnaire is now available to other researchers to investigate its usefulness and applicability across Latin American.
国际健身量表（IFIS，5项版本）是为评估欧洲人群的身体活动水平而制定的，它是欧盟资助项目“青少年营养促进欧洲健康生活方式（HELENA研究）”框架的一部分。本研究的目的是评估该量表在哥伦比亚年轻成年人中的重测稳定性、内部一致性、一致性比例和适用性。
共有2340名哥伦比亚人（1376名女性和964名男性；年龄18 - 30岁）完成了IFIS问卷。计算组内相关系数（ICC）和一致性比例，以评估两次测试分数的稳定性，两次测试间隔7天。计算Cronbach α系数以评估每个量表的内部一致性，并计算一致性比例以衡量个体给出相同分数的情况比例。
Cronbach α系数为0.80。IFIS的可靠性分数极佳（ICC范围为0.90 - 0.96）。所有单个项目的一致性比例在77% - 86%之间。评估期间完成问卷的平均（±标准差）时间为3分47秒（±2分钟）。
该量表似乎具有较高的可靠性和可重复性。现在其他研究人员可以使用该问卷来研究其在拉丁美洲的有用性和适用性。
