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구분

학술행사 (포스터발표)

발표일

2014년 5월

제목

Are Korean boys more physically active than girls regardless of biological maturity?

이용자료년도

2012년

저자

Eun-Young Lee(University of Alberta)

주요내용

Introduction: Biological determinants of adolescents’ physical activity have been examined in recent years. Notably, when biological maturity is controlled, the well-documented sex differences in physical activity are attenuated (Sherar et al., 2007; Thompson et al., 2003). The purpose of this study was to examine the association between biological maturation and physical activity, and sedentary time in Korean adolescents.

Methods: A total of 74,186 students aged between 12 to 18 years who participated in the eighth Korea Youth Risk Behavior Web-based Survey (KYRBS) were selected for the analysis. All participants were categorized by both chronological age (CA) and biological age (BA), and each age group was compared by sex in vigorous physical activity (VPA), moderate physical activity (MPA), and sedentary time during weekdays and weekend days.

Results: A series of independent t-tests revealed sex differences in VPA and MPA for CA (p < .05). For BA, sex differences did not exist among -3 year olds (matured 3 years ahead compared to average age of maturity), but were significant for all other ages. Sex differences in sedentary time during weekdays also existed in both CA and BA (p < .05), except for -3 year olds. Significant sex differences in sedentary time during weekends were also observed in 12, 13 and 14 year olds (CA) and from -2 to 1 year olds (BA).

Conclusion: Sex differences in physical activity and time spent in sedentary behaviour remain regardless of the variation in biological maturity among Korean adolescents, except in one age group with advanced maturation (BA -3 year old). The effect of biological maturation on physical activity in adolescents may not exist among Asian populations. Further investigation on the interrelationship between bio-psychosocial correlates of physical activity is warranted

학술행사명

2014 Global Summit on the Physical Activity of Children

발표장소

Toronto, ON., Canada
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