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Development of the Korean Global Physical Activity Questionnaire: reliability and validity study
Junga Lee1, Choae Lee2, Jihee Min2
1Graduate School of Sport Science, Kyung Hee University, Seoul, Republic of Korea.
Global Health Promotion
|August 4, 2019
Summary
The Korean Global Physical Activity Questionnaire (K-GPAQ) is a reliable tool for measuring physical activity (PA). While it shows moderate agreement for recreational PA, it slightly overestimates overall PA levels compared to accelerometers.
Area of Science:
- Public Health
- Exercise Science
- Biostatistics
Background:
- Accurate measurement of physical activity (PA) is crucial for public health research and interventions.
- The Global Physical Activity Questionnaire (GPAQ) is a widely used tool, but a validated Korean version was needed.
Purpose of the Study:
- To develop and validate a Korean version of the Global Physical Activity Questionnaire (K-GPAQ).
- To assess the reliability and criterion validity of the K-GPAQ in a Korean population.
Main Methods:
- Forward-backward translation was used to create the K-GPAQ from the English GPAQ.
- Test-retest reliability was assessed using a one-week interval in 115 individuals.
- Criterion validity was examined by comparing K-GPAQ results with accelerometer data in 199 participants.
Main Results:
- K-GPAQ demonstrated moderate test-retest reliability for recreational PA (Cohen's kappa: 0.60-0.67) and slight reliability for work-related PA (Cohen's kappa: 0.30-0.38).
- Spearman's correlation coefficients indicated moderate reliability for recreational PA (0.53-0.70) and weak to moderate for work-related PA (0.27-0.47).
- Criterion validity showed a weak but significant positive correlation (r = 0.34, p < 0.01) between K-GPAQ and accelerometer, with K-GPAQ overestimating PA.
Conclusions:
- The K-GPAQ is a reliable and valid instrument for assessing physical activity in Korean adults.
- The findings support the use of K-GPAQ in epidemiological studies and health promotion programs in Korea.
- Further research may explore the extent of PA overestimation and its implications.
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