Validity and Reliability of a Single Question for Leisure-Time Physical Activity Assessment in Middle-Aged Women
in Journal of Aging and Physical ActivityClick name to view affiliation
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Purpose: To investigate the validity and test–retest reliability of a single seven-level scale physical activity assessment question (SR-PA L7) and its three-level categorization (SR-PA C3). Methods: The associations of SR-PA L7 and C3 with accelerometer-measured leisure-time physical activity (ACC-LTPA) and with the results of four different physical performance tests (6-min walk [n = 733], knee extension [n = 695], vertical jump [n = 731], and grip force [n = 780]) were investigated among women aged 47–55 years participating in the Estrogenic Regulation of Muscle Apoptosis study (n = 795). The reliability was studied using Spearman correlations with 4-month test–retest period (n = 152). Results: SR-PA L7 and C3 had low correlations with ACC-LTPA (rs = .105–.337). SR-PA L7, SR-PA C3, and ACC-LTPA explained comparable but small amount of variance of the physical performance test results. The reliability analysis provided moderate agreement (rs = .707 and .622 for SR-PA L7 and C3, respectively). Conclusions: SR-PA L7 and C3 demonstrated limited validity and reasonable repeatability.
Hyvärinen, Sipilä, and Laakkonen are with Gerontology Research Center, Faculty of Sport and Health Sciences, University of Jyväskylä, Jyväskylä, Finland. Kulmala, Hakonen, and Tammelin are with the LIKES Research Centre for Physical Activity and Health, Jyväskylä, Finland. Kujala and Kovanen are with the Faculty of Sport and Health Sciences, University of Jyväskylä, Jyväskylä, Finland.
Supplementary Materials
- Supplementary Table 1 (PDF 288 KB)
- Supplementary Table 2 (PDF 217 KB)
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