Sinhalese Version of the Global Physical Activity Questionnaire for Community-Dwelling Older Adults: Reliability and Validity

A reliable and valid measurement of physical activity (PA) is vital for PA surveillance activities in community settings evaluating intervention programs targeted at older adults. This study assessed the reliability validity a Sinhalese version Global Physical Activity Questionnaire-version 2 (GPAQv2) adapted community-dwelling adults (aged 60+) Sri Lanka. Cross-cultural adaptation an assessment content GPAQv2 were done. Indirect criterion (n = 210) test-retest 40) tool assessed. Content index, Spearman rank correlation coefficients intra-class coefficient (ICC) calculated, Bland–Altman plots drawn. The index questionnaire was 0.82, acceptable value. 3600 turn test (r –0.258, p= 0.03), timed up-and-go –0.197, 0.02) negatively correlated, whereas total balance (r= 0.241, P= 0.00), single leg stance 0.206, 0.01), instrumental daily living score (IADL) 0.244, 0.00) positively correlated with scores PA, confirming indirect GPAQv2. demonstrated favorable (ICC 0.713). mean difference between retest –302.6 MET/week, slight overestimation retest. demonstrates validity. It suitable use measures among