Exercise Held Its Own Against Talk Therapy for Depression

CATEGORY: EXERCISE & MOVEMENT

Ten randomized trials have put exercise head to head with talk therapy for depression, and neither came out ahead. The pooled verdict is probably little to no difference between them. Against no treatment or an inactive control, meanwhile, exercise programs produced a moderate improvement in mood by the end of treatment. Both findings come from a Cochrane review of 73 randomized trials involving nearly 5,000 adults diagnosed with depression.¹

Seventy-Three Trials, Pooled Into One Answer

A Cochrane review is a systematic synthesis of randomized trials, the kind where a random allocation rather than the patient or the doctor settles who receives which treatment. That design is what permits a cause-and-effect reading. This one updates a review last revised in 2013, gathering every eligible trial through November 2023 in which adults with depression were randomized to an exercise program against no treatment, a waiting list, an inactive control, or an active alternative such as therapy or medication. Depression symptoms were measured on standard rating scales at the end of each program. The reviewers then graded how much confidence each pooled comparison deserves.

Even With Therapy, Thinner Evidence Against Pills

Across 57 trials with 2,189 participants, people assigned to exercise finished with moderately lower depression scores than those given no treatment or a control. The reviewers rate the certainty of that estimate as low, largely because of weaknesses in how many of the trials were run. The direct comparisons are firmer. In ten trials pitting exercise against psychological therapy, approaches such as cognitive behavioural therapy, a structured course of talk therapy in which people learn to spot unhelpful thought patterns and redirect them, the two treatments came out essentially even, and that comparison carries moderate certainty. Five trials set exercise against antidepressant medication and also found little to no difference, though on thinner evidence rated low certainty.

Where the Evidence Wears Thin

The review is as candid about weaknesses as about results. Nobody can be blinded to whether they are exercising, and most trials relied on participants rating their own mood. Both can inflate an apparent benefit. When the reviewers restricted the analysis to the seven strictest trials, the benefit over no treatment shrank, though it did not disappear. Few trials followed people after the programs ended, so the durability of the effect is unknown. Unwanted effects were uncommon on either side of the ledger: occasional muscle and joint complaints among exercisers, and fatigue and sexual dysfunction among trial participants taking the antidepressant sertraline.

Thirty-Five New Trials Barely Moved the Estimate

The authors volunteer one detail that may matter most. Adding 35 trials and more than 2,500 participants since the 2013 edition changed the estimate of exercise’s benefit very little. An answer that holds still across more than a decade of accumulating research is unusual in a field where enthusiasm often outruns evidence. People in the exercise trials were also no more likely to drop out than those receiving other treatments, which says something about whether such programs can be sustained. For a condition as common as depression, the practical meaning is that exercise now sits on the evidence-backed menu alongside therapy and medication for symptom relief at the end of treatment, with the honest footnote that the head-to-head comparisons rest on a modest number of modest trials.

Key Takeaways

• Across 73 randomized trials and nearly 5,000 adults with depression, exercise moderately reduced symptoms compared with no treatment, at low certainty.
• In direct comparisons, exercise performed about as well as psychological therapy, rated moderate certainty, and about as well as antidepressants, rated low certainty on a handful of small trials.
• Counting only the most rigorously run trials left a smaller benefit that was still present, and almost nothing is known about how long it lasts once a program ends.
• This update added 35 trials to the 2013 review and left the core estimate essentially unchanged.

References

1. Clegg AJ, Hill JE, Mullin DS, et al. Exercise for depression. Cochrane Database of Systematic Reviews. 2026;1(1):CD004366. link