Exercise as a frontline treatment for mild depression and anxiety
New research indicates that aerobic exercise, including activities such as running, swimming, and dancing, can serve as a frontline treatment for mild depression and anxiety. The study highlights that group-based physical activities provide the most significant benefits, particularly for vulnerable populations like young adults and new mothers.
Key findings from the research
Scientists conducted a comprehensive analysis of 63 published reviews, examining the impact of exercise on mental health in nearly 80,000 volunteers. The research aimed to assess the effects across all age groups, with a special focus on pregnant women and new mothers. The exercises evaluated ranged from resistance training and aerobic workouts to mind-body practices like yoga and tai chi.
Aerobic exercise that elevates the heart rate was found to have the most substantial impact on reducing depression symptoms, while resistance training and yoga showed lesser effects. A similar trend was observed for anxiety, though the impact was generally smaller. The study, published in the British Journal of Sports Medicine, also revealed that group exercise or supervised activities yielded additional benefits, suggesting that social interaction plays a crucial role in the antidepressant effects of physical activity.
Benefits for vulnerable groups
The research identified that some of the greatest improvements in mental health were seen in young adults and new mothers, groups that are particularly susceptible to mental health issues. According to the World Health Organization, over 280 million people globally have depression, and 301 million suffer from anxiety disorders. In the UK and other regions, cases among 16- to 24-year-olds have risen sharply over the past decade, with approximately 15 to 20% of new mothers experiencing depression and anxiety within the first year after childbirth.
Neil Munro, a psychologist at James Cook University in Queensland, Australia, commented, "Exercise can have a similar effect, and sometimes a stronger impact, than traditional treatments. Getting moving, in whatever shape or form works best for each person, can help mitigate depression and anxiety symptoms."
Caution and recommendations from experts
While the findings are promising, experts urge caution, noting that the study primarily focused on mild cases of depression and anxiety. Dr. Brendon Stubbs, who researches exercise and mental health at King’s College London, emphasized, "For people with mild or subclinical symptoms, exercise can reasonably be considered a frontline treatment option. However, there is no evidence from this study, or from the wider literature, to suggest that people should change or discontinue established treatments such as psychotherapy or medication."
He added that for individuals with severe depression, even basic daily activities can be extremely challenging, and symptoms often need to improve before exercise can be attempted. Professor Michael Bloomfield, a psychiatrist at UCL, supported this view, stating, "It’s good news that group exercise such as Zumba can reduce symptoms of anxiety and depression for some people, likely through a mix of physical activity, social connection, fun, dance, and routine, and the evidence supports it as a potential useful adjunct to care."
However, he cautioned that for many with more severe depression, participating in energetic group activities may be unrealistic. "For that reason, exercise should be seen as a complement to, not a replacement for, evidence-based treatments such as psychological therapies and medication where these are clinically indicated," Bloomfield concluded.
The research underscores the importance of incorporating physical activity into mental health care plans, especially for those with mild symptoms, while maintaining a balanced approach that includes traditional therapies when necessary.
