A dose of the gym might do wonders for both an ailing body and mind. A report out today finds that exercise can provide similar benefits for depression as other widely used treatments.
Scientists in the UK reviewed the medical literature on exercise and depression, examining dozens of clinical trials. They found convincing evidence that exercise can reduce depression symptoms, at least in the short term, as well as evidence that its effects match that of therapy or antidepressants. Though more research is needed to fully quantify these benefits, exercise should be considered part of the toolbox used to help treat depression, the researchers say.
“Exercise provides an option for people experiencing depressive symptoms, along with pharmacological treatments or psychological therapies,” lead study author Andrew Clegg, a professor at the University of Lancashire, told Gizmodo.
An extensive analysis
Clegg and his team’s study was conducted on behalf of the Cochrane Library, a British-based research organization known for its comprehensive reviews of clinical trial data related to important public health topics.
They examined 73 randomized trials that collectively involved almost 5,000 adults with depression. Fifty-seven trials directly compared exercise to either no treatment or a control; ten trials compared exercise to therapy, and five compared exercise to antidepressants.
All in all, Clegg’s team determined that exercise is reliably better at reducing depression compared to no treatment, though this reduction is likely modest on average. That said, the long-term benefits of exercise for depression are less clear.
They also concluded there is “probably little to no difference in depressive symptoms” among people who regularly exercise compared to people taking therapy. The same seems to be true when comparing exercise to antidepressants, but the evidence there is less certain.
The team’s findings also suggest that light or moderate intensity exercise might be more effective for depression than vigorous exercise. And though no single form of exercise seemed to be substantially better than others, a mixed exercise program or resistance training might be better than aerobic exercise alone, according to the researchers.
Remaining questions
The Cochrane review is the latest research to indicate that exercise can reduce depression symptoms at least as well as other conventional treatments. But the authors say there are still important aspects that could be understood better with larger, higher-quality randomized trials.
“If additional research were to be funded, it should consider which type of exercise is most effective in the long-term, how much exercise should be undertaken and for how long. Also, to look at who benefits from exercise, as it may benefit some people but not others,” explained Clegg.
Exercise is undoubtedly one of the best things you can do for your overall health, however, and it’s likely to come with few side effects (the review noted that reported “adverse events” from exercise were uncommon). Some research has also suggested that combining exercise with other interventions like therapy can be even more effective than either alone.
People dealing with depression should ultimately be encouraged to pursue the treatments they’re most comfortable with, Clegg says. But that list of options can certainly seem to include exercise.
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