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Int. J. Environ. Res. Public Health 2011, 8(9), 3810-3820;

Convergent Validity of the Arab Teens Lifestyle Study (ATLS) Physical Activity Questionnaire

Exercise Physiology Laboratory, Department of Physical Education and Movement Sciences, College of Education, King Saud University, P.O. Box 2458, Riyadh, 11451, Saudi Arabia
Scientific Board Member, Obesity Research Chair, King Saud University, Riyadh, Saudi Arabia
Department of Rehabilitation Sciences, College of Applied Medical Sciences, King Saud University, P.O. Box 6941, Riyadh, 11452, Saudi Arabia
Arab Center for Nutrition, Manama, Bahrain, and Nutrition and Health Studies Unit, Deanship of Scientific Research, University of Bahrain, P.O. Box 26923, Manama, Bahrain
Author to whom correspondence should be addressed.
Received: 12 August 2011 / Revised: 8 September 2011 / Accepted: 19 September 2011 / Published: 23 September 2011
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The Arab Teens Lifestyle Study (ATLS) is a multicenter project for assessing the lifestyle habits of Arab adolescents. This study reports on the convergent validity of the physical activity questionnaire used in ATLS against an electronic pedometer. Participants were 39 males and 36 females randomly selected from secondary schools, with a mean age of 16.1 ± 1.1 years. ATLS self-reported questionnaire was validated against the electronic pedometer for three consecutive weekdays. Mean steps counts were 6,866 ± 3,854 steps/day with no significant gender difference observed. Questionnaire results showed no significant gender differences in time spent on total or moderate-intensity activities. However, males spent significantly more time than females on vigorous-intensity activity. The correlation of steps counts with total time spent on all activities by the questionnaire was 0.369. Relationship of steps counts was higher with vigorous-intensity (r = 0.338) than with moderate-intensity activity (r = 0.265). Pedometer steps counts showed higher correlations with time spent on walking (r = 0.350) and jogging (r = 0.383) than with the time spent on other activities. Active participants, based on pedometer assessment, were also most active by the questionnaire. It appears that ATLS questionnaire is a valid instrument for assessing habitual physical activity among Arab adolescents. View Full-Text
Keywords: Arab Teens Lifestyle Study; validity; questionnaire; pedometer Arab Teens Lifestyle Study; validity; questionnaire; pedometer
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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Al-Hazzaa, H.M.; Al-Sobayel, H.I.; Musaiger, A.O. Convergent Validity of the Arab Teens Lifestyle Study (ATLS) Physical Activity Questionnaire. Int. J. Environ. Res. Public Health 2011, 8, 3810-3820.

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Int. J. Environ. Res. Public Health EISSN 1660-4601 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
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