Paper Information

Journal:   INTERNATIONAL JOURNAL OF PREVENTIVE MEDICINE   2014 , Volume 5 , Number 8; Page(s) 952 To 959.
 
Paper: 

A COMMUNITY BASED STUDY TO TEST THE RELIABILITY AND VALIDITY OF PHYSICAL ACTIVITY MEASUREMENT TECHNIQUES

 
 
Author(s):  MISRA PUNEET*, UPADHYAY RAVI PRAKASH, KRISHNAN ANAND, SHARMA NEELAM, KAPOOR SURESH K.
 
* CENTRE FOR COMMUNITY MEDICINE, ALL INDIA INSTITUTE OF MEDICAL SCIENCES, NEW DELHI, INDIA
 
Abstract: 

Introduction: Physical activity (PA) is protective against non-communicable diseases and it can reduce premature mortality. However, it is difficult to assess the frequency, duration, type and intensity of PA. The global physical activity questionnaire (GPAQ) has been developed by World Health Organization with the aim of having valid and reliable estimates of PA. The primary aim of this study is to assess the repeatability of the GPAQ instrument and the secondary aim is to validate it against International Physical Activity Questionnaire (IPAQ) and against an objective measure of PA (i.e., using pedometers) in both rural and peri-urban areas of North India.
Methods: A total of 262 subjects were recruited by random selection from Ballabgarh Block of Haryana State in India. For test retest repeatability of GPAQ and IPAQ, the instruments were administered on two occasions separated by at least 3 days. For concurrent validity, both questionnaires were administered in random order and for criterion validity step counters were used. Spearman’s correlation coefficient, intra-class correlation (ICC) and Cohen’s kappa was used in the analysis.
Results: For GPAQ validity, the spearman’s Rho ranged from 0.40 to 0.59 and ICC ranged from 0.43 to 0.81 while for IPAQ validity, spearman correlation coefficient ranged from 0.42 to 0.43 and ICC ranged from 0.56 to 0.68. The observed concurrent validity coefficients suggested that both the questionnaires had reasonable agreement (Spearman Rho of>0.90; P<0.0001; ICC: 0.76-0.91, P<0.05).
Conclusions: GPAQ is similar to IPAQ in measuring PA and can be used for measurement of PA in community settings.

 
Keyword(s): COMMUNITY SETTING, GLOBAL PHYSICAL ACTIVITY QUESTIONNAIRE, INTERNATIONAL PHYSICAL ACTIVITY QUESTIONNAIRE, NORTH INDIA, PEDOMETER, RELIABILITY, RURAL, VALIDITY
 
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