TY - JOUR
T1 - The place of physical activity in the time budgets of 10- to 13-year-old Australian children
AU - Olds, Tim
AU - Maher, Carol
AU - Ridley, Kate
PY - 2011/5
Y1 - 2011/5
N2 - Background: Low physical activity has been associated with increased fatness and deceased fitness. This observational study aimed to describe the magnitude, composition, and time-distribution of moderate-to-vigorous physical activity (MVPA) in Australian children. Methods: A total of 1132 10 to 13 year old schoolchildren completed a 24-h activity recall diary on 2 to 4 occasions. MVPA was defined as any activity requiring ≥3METs, including sport, play, active transport, chores, and other activities. Results: MVPA was higher in boys than girls (173 vs 140 min/day; P < .0001), higher on nonschool days than school days (166 vs 143 min/day; P < .0001), and decreased with age (9 min/day per year of age). MVPA consisted of structured sport (37%), active transport (26%), unstructured play (24%), and chores/miscellaneous activities (13%). Every hour of MVPA was associated with a reduction in screen time (26.5 min), non-screen-based sedentary pastimes (8 min), and sleep (5.5 min). The least active quartile of children were more likely to be girls (OR = 3.4), have higher screen time, and sleep more. From 4:00-6:30 PM on school days there were large differences in participation between high-active and low-active children. Conclusion: Findings suggest MVPA interventions should target girls, screen time and focus on the after-school period.
AB - Background: Low physical activity has been associated with increased fatness and deceased fitness. This observational study aimed to describe the magnitude, composition, and time-distribution of moderate-to-vigorous physical activity (MVPA) in Australian children. Methods: A total of 1132 10 to 13 year old schoolchildren completed a 24-h activity recall diary on 2 to 4 occasions. MVPA was defined as any activity requiring ≥3METs, including sport, play, active transport, chores, and other activities. Results: MVPA was higher in boys than girls (173 vs 140 min/day; P < .0001), higher on nonschool days than school days (166 vs 143 min/day; P < .0001), and decreased with age (9 min/day per year of age). MVPA consisted of structured sport (37%), active transport (26%), unstructured play (24%), and chores/miscellaneous activities (13%). Every hour of MVPA was associated with a reduction in screen time (26.5 min), non-screen-based sedentary pastimes (8 min), and sleep (5.5 min). The least active quartile of children were more likely to be girls (OR = 3.4), have higher screen time, and sleep more. From 4:00-6:30 PM on school days there were large differences in participation between high-active and low-active children. Conclusion: Findings suggest MVPA interventions should target girls, screen time and focus on the after-school period.
KW - Adolescents
KW - Screen time
KW - Use-of-time
UR - http://journals.humankinetics.com/AcuCustom/SiteName/Documents/DocumentItem/12_maher_JPAH_20090218.pdf
UR - http://www.scopus.com/inward/record.url?scp=79955517877&partnerID=8YFLogxK
U2 - 10.1123/jpah.8.4.548
DO - 10.1123/jpah.8.4.548
M3 - Article
VL - 8
SP - 548
EP - 557
JO - Journal of Physical Activity and Health
JF - Journal of Physical Activity and Health
SN - 1543-3080
IS - 4
ER -