The research on exercise and smoking cessation draws from multiple randomized controlled trials. One trial reported strength training led to higher quit rates among long-term smokers. The analysis incorporated data from 59 trials involving more than 9,000 adults, as reported in the Journal of Sport and Health Science [4]. Researchers found that participants in exercise programs were 15 to 21 percent more likely to remain smoke-free compared to control groups, and they smoked approximately two fewer cigarettes per day on average. These results are supported by broader evidence that regular physical activity reduces morbidity and mortality from chronic diseases, as stated in the book "Lifestyle Medicine" by James M. Rippe [5]. The book "Cardiopulmonary Rehabilitation" notes that smoking cessation involves multiple techniques, and while no single method is proven superior, exercise can be an effective component [6].
Aerobic exercise such as brisk walking, cycling, or running showed the clearest long-term benefits for smoking cessation in the analyzed trials. Strength training also demonstrated positive effects. Evidence for yoga, resistance training, and high-intensity interval training remains limited due to fewer studies and mixed results. Programs with one to two sessions per week appeared more effective than higher frequency, but researchers caution that this finding requires further validation because of variability across studies. A notable gap in the current evidence is the absence of trials examining whether exercise helps individuals quit vaping or e-cigarettes, a void the authors described as a critical oversight, given the rapid increase in e-cigarette use.
Exercise is generally low-risk, does not require a prescription, and can be performed without specialized equipment or internet access, making it accessible for many individuals. However, people with heart, lung, or other health concerns should consult a clinician before beginning vigorous activity. The analysis was limited by low certainty of evidence for abstinence outcomes, potential publication bias, and restriction to English-language peer-reviewed articles. Researchers emphasized that exercise should be viewed as a complement to existing cessation approaches, not as a stand-alone solution. While the link between exercise and smoking cessation is promising, further high-quality research is needed to establish more definitive guidelines.