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Smoking, exercise, and physical fitness
1Health Sciences and Epidemiology Department, Naval Health Research Center, San Diego, California 92186-5122.
Preventive Medicine
|November 1, 1992
Summary
Smoking negatively impacts physical fitness, particularly endurance, even when exercise levels are similar. Quitting smoking is crucial for improving overall physical fitness and health outcomes.
Area of Science:
- Exercise Physiology
- Public Health
- Behavioral Science
Background:
- Established evidence links smoking to adverse health and physical activity to positive health outcomes.
- Limited research exists on the combined effects of smoking and exercise on physical fitness.
Purpose of the Study:
- To investigate the associations between smoking behavior, exercise activity, and physical fitness in Navy personnel.
- To determine the independent impact of smoking on physical fitness, controlling for exercise levels.
Main Methods:
- A lifestyle survey assessed exercise and smoking behaviors in 3,045 Navy personnel.
- Physical fitness was evaluated using the Navy's Physical Readiness Test (PRT).
- Analyses of variance and multiple regression were employed to examine relationships.
Main Results:
- Smoking was associated with reduced exercise levels and lower physical endurance (cardiorespiratory and muscular).
- Even after controlling for exercise activity, smoking remained a significant predictor of lower physical endurance.
- Smoking was not significantly related to lean body mass or body fat percentage.
Conclusions:
- Smoking detrimentally affects physical fitness, especially endurance, in young, fit individuals.
- Smokers exhibit lower physical endurance than non-smokers, independent of exercise habits.
- Encouraging smoking cessation is vital for enhancing physical fitness.