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Salud Pública de México
versión impresa ISSN 0036-3634
Resumen
MEDINA, Catalina et al. Validity and reliability of the International Physical Activity Questionnaire (IPAQ) long-form in a subsample of female Mexican teachers. Salud pública Méx [online]. 2022, vol.64, n.1, pp.57-65. Epub 06-Mar-2023. ISSN 0036-3634. https://doi.org/10.21149/12889.
Objective:
To evaluate the test-retest reliability and validity of the long-form International Physical Activity Questionnaire (IPAQ-long form).
Materials and methods:
A subsample of 86 teachers underwent telephone interviews and clinic visits in Mexico City. Through 22 months, physical activity (PA) levels were obtained from accelerometers (months 6 and 22) and IPAQ long-form (months 1, 3, 6, 9 and 12). Minutes per week of moderate (MPA), walking (WPA), vigorous (VPA) and moderate-to-vigorous physical activity (MVPA) were calculated for each intensity and domain. Variables were logarithmically transformed. Intra-class and Pearson correlations were used to determine the relationship between instruments.
Results:
Test-retest reliability of the average IPAQs long-form varied across intensities and domains (ranged from r= 0.24 to r= 0.65). Minutes per week of VPA and MVPA accelerometer 1 (AC1) were fairly associated to International Physical Activity Questionnaire-long form 3 (IPAQ3) (r= 0.60 and r= 0.31, respectively) one week apart.
Conclusions:
IPAQ long-form is fairly reliable for MVPA and valid for assessing MVPA and VPA in a subsample of Mexican teachers.
Palabras llave : validity; women; measurement; questionnaire; accelerometer.