A recent study suggests that supervised high-intensity exercise may complement mental health treatment — but the findings require some context.
The randomized trial involved 34 university students with mild-to-moderate depression. All continued their usual clinical care, while half also completed a supervised 12-week exercise program with three sessions per week. Depression scores improved in both groups, but the exercise group experienced significantly greater reductions.
Despite the study’s focus on HIIT, participants did more than intervals. Sessions combined progressively intensified intervals with squats, lunges, push-ups and core exercises. The results therefore cannot tell us whether HIIT alone produced the improvement.
What Trainers Should Know
The study reinforces the supportive role trainers can play by providing structure, encouragement and appropriate exercise progression. However, exercise should be presented as a complement to mental health care — not a replacement for therapy, medication or professional evaluation.
When working with clients experiencing depression, trainers should:
- Introduce higher intensities gradually.
- Monitor energy, recovery and response to each session.
- Offer flexible options when symptoms affect participation.
- Avoid claiming that exercise can treat or cure depression.
- Maintain clear referral and emergency procedures.
The findings are encouraging but preliminary. The study was small, limited to young adults from one university and lacked long-term follow-up. It also involved more supervision and weekly exercise time than many clients receive.
The takeaway isn’t that every client with depression needs HIIT. It’s that thoughtfully progressed, supervised exercise may be a valuable part of a larger care plan.
