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Physical activity, global physical self-concept, and adolescent smoking
Daniel Rodriguez1, Janet Audrain-McGovern
1Department of Psychiatry, University of Pennsylvania, Philadelphic 19104, USA. drodrig2@mail.med.upenn.edu
Summary
Physical activity may protect adolescents from smoking, but this effect appears indirect. It works through global physical self-concept (GPSC), influencing how teens perceive their bodies and abilities.
Area of Science:
- Adolescent Health
- Behavioral Science
- Public Health
Background:
- Physical activity is linked to reduced adolescent smoking.
- The direct vs. indirect pathways of this protective effect remain unclear.
- Global physical self-concept (GPSC) is a potential mediating variable.
Purpose of the Study:
- To test a structural equation model examining the relationship between physical activity and adolescent smoking.
- To assess direct effects of physical activity on smoking.
- To evaluate indirect effects of physical activity on smoking via GPSC.
Main Methods:
- A sample of 983 12th-grade students participated.
- The study analyzed biobehavioral predictors of adolescent smoking adoption.
- Structural equation modeling was employed to test the proposed relationships.
Main Results:
- Physical activity demonstrated an indirect effect on smoking through GPSC.
- This association persisted after controlling for covariates like peer smoking and alcohol use.
- Adolescent smoking is influenced by physical activity's impact on GPSC.
Conclusions:
- Adolescent self-perception of physical abilities is a key factor in smoking interventions.
- Interventions should consider the role of GPSC in the physical activity-smoking relationship.
- Further longitudinal research is needed to confirm these findings.