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Validity and reliability of the Baecke questionnaire for the evaluation of habitual physical activity among people living with HIV/AIDS

2006; Escola Nacional de Saúde Pública, Fundação Oswaldo Cruz; Volume: 22; Issue: 3 Linguagem: Inglês

10.1590/s0102-311x2006000300008

1678-4464

Alex Antônio Florindo, Maria do Rosário Dias de Oliveira Latorre, Elisabete Cristina Morandi dos Santos, Carlos Eduardo Negrão, Luciene Ferreira Azevedo, Aluísio Augusto Cotrim Segurado,

Gestational Diabetes Research and Management

This study evaluates the validity and reliability of the Baecke questionnaire on habitual physical activity when applied to a population of HIV/AIDS subjects. Validity was determined by comparing measurements for 30 subjects of peak oxygen uptake, peak workload, and energy expenditure with scores for occupational physical activity (OPA), physical exercise in leisure (PEL), leisure and locomotion activities (LLA), and total score (TS). Reliability was determined by testing and retesting 29 subjects at intervals of 15-30 days. Validity was evaluated with the Pearson correlation and reliability analyses were done using the intraclass correlation, paired Student t-test, and Bland-Altman methods. Peak VO2 and peak workload had significant correlation with PEL (r = 0.41; r = 0.43; respectively). Energy expenditure had a significant correlation with OPA (r = 0.64). The intraclass coefficients were 0.70 or more for OPA, PEL and TS. There was no difference in OPA, PEL, LLA and TS between the two evaluations. The Bland-Altman methods showed that there was good agreement between the measurements for all habitual physical activities scores. Results show that the Baecke questionnaire is valid for the evaluation of habitual physical activity among people living with HIV/AIDS.