20791
document
Enjoyment mediates effects of a school-based physical-activity intervention . PURPOSE The study evaluated whether targeted changes in factors influencing enjoyment of physical education ( PE ) , physical activity enjoyment , and self-efficacy beliefs about participating in physical activity mediated the effect of the Lifestyle Education for Activity Program ( LEAP ) intervention on participation in physical activity . METHODS High schools ( N=24 ) paired on enrollment size , racial composition , urban or rural location , and class structure were randomized into control ( N=12 ) or experimental ( N=12 ) groups . Of the 4044 girls enrolled and eligible , 2087 ( 51.6 % ) participated in the measurement component of the study . There were 1038 girls in the control group and 1049 girls in the experimental group . INTERVENTION LEAP was a comprehensive school-based intervention emphasizing changes in instruction and school environment designed to increase physical activity among black and white adolescent girls . It was organized according to the Coordinated School Health Program and included a PE component with core objectives of promoting enjoyment of PE , physical activity enjoyment , and self-efficacy . RESULTS Latent variable structural equation modeling indicated that : 1 ) the intervention had direct , positive effects on physical activity and factors influencing enjoyment of PE , which subsequently explained the effects of increased physical activity enjoyment and self-efficacy on increased physical activity ; and 2 ) an additional , indirect effect of physical activity enjoyment on physical activity operated by an influence on self-efficacy . CONCLUSIONS Increases in enjoyment partially mediated the positive effect of the LEAP intervention . To our knowledge , we have provided the first experimental evidence from a randomized controlled trial linking increased enjoyment with increased physical activity among black and white adolescent girls .
20792
Intervention_Educational
school-based physical-activity intervention
20793
Intervention_Educational
Lifestyle Education for Activity Program ( LEAP ) intervention
20794
Intervention_Control
control
20795
Intervention_Educational
experimental
20796
Intervention_Control
control
20797
Intervention_Educational
LEAP
20798
Intervention_Educational
PE component with core objectives
20799
Intervention_Educational
LEAP intervention
20800
Outcome_Other
self-efficacy
20801
Outcome_Mental
self-efficacy
20802
Participant_Sample-size
4044
20803
Participant_Sex
girls
20804
Participant_Sample-size
2087 ( 51.6 %
20805
Participant_Sample-size
1038
20806
Participant_Sex
girls
20807
Participant_Sample-size
1049
20808
Participant_Sex
girls
20809
Participant_Age
adolescent
20810
Participant_Sex
girls
20811
Participant_Age
adolescent
20812
Participant_Sex
girls