TY - JOUR
T1 - The relation between physical activity, fitness, and fatness in adolescents
T2 - A mediation analysis
AU - Arngrímsson, Sigurbjörn Árni
AU - Ólafsdóttir, Anna SigríĐur
N1 - Publisher Copyright:
© 2015 Wiley Periodicals, Inc.
PY - 2016/7/1
Y1 - 2016/7/1
N2 - OBJECTIVES: To investigate the total, direct and mediated (by fatness) association of physical activity (PA) with fitness.METHODS: Body fat percentage (%Fat), maximal oxygen uptake (VO2max ) and PA were measured directly in 18-year-olds (n=202) and their association analyzed with a linear regression-based mediation analysis after controlling for sex.RESULTS: The total association between PA and VO2max was significant (c=0.66, P<0.001) and was significantly mediated by %Fat (ab=0.25, 95% CI: 0.04-0.49). The direct association was also significant (ć=0.41, P<0.001).CONCLUSION: Physical activity is associated with VO2max in 18-year-old adolescents but a little over a third of that association is mediated by %Fat. Regardless of fatness, PA is important for fitness in this age group. Am. J. Hum. Biol. 28:584-586, 2016.
AB - OBJECTIVES: To investigate the total, direct and mediated (by fatness) association of physical activity (PA) with fitness.METHODS: Body fat percentage (%Fat), maximal oxygen uptake (VO2max ) and PA were measured directly in 18-year-olds (n=202) and their association analyzed with a linear regression-based mediation analysis after controlling for sex.RESULTS: The total association between PA and VO2max was significant (c=0.66, P<0.001) and was significantly mediated by %Fat (ab=0.25, 95% CI: 0.04-0.49). The direct association was also significant (ć=0.41, P<0.001).CONCLUSION: Physical activity is associated with VO2max in 18-year-old adolescents but a little over a third of that association is mediated by %Fat. Regardless of fatness, PA is important for fitness in this age group. Am. J. Hum. Biol. 28:584-586, 2016.
UR - http://www.scopus.com/inward/record.url?scp=85028264401&partnerID=8YFLogxK
U2 - 10.1002/ajhb.22813
DO - 10.1002/ajhb.22813
M3 - Article
C2 - 26619827
AN - SCOPUS:85028264401
SN - 1042-0533
VL - 28
SP - 584
EP - 586
JO - American journal of human biology : the official journal of the Human Biology Council
JF - American journal of human biology : the official journal of the Human Biology Council
IS - 4
ER -