Exercise May Offer Inpatients With Mental Illness Immediate Mood Boosts, Study Finds

For people admitted to psychiatric wards, exercise has long been recommended but rarely studied from the inside. Most research on physical activity and mental health has focused on outpatients, leaving a striking gap in knowledge about how hospitalized patients — often at the most severe point of their illness — actually experience training. A new qualitative study from Norway now offers one of the first detailed looks at that question, and its findings suggest that structured, professionally supported exercise may deliver something patients describe as immediate: a noticeable lift in mood that begins within moments of finishing a session.

The study, published in Frontiers in Psychiatry, was conducted at the Division of Substance Use and Mental Health at the University Hospital of North Norway in Tromsø, a clinic unusual in that it maintains two fully equipped gyms and employs two exercise physiologists who work directly with patients. Researchers interviewed eight inpatients — five men and three women with a mean age of 53.9 — who had taken part in individualized exercise sessions during hospital stays lasting roughly three to six weeks. The participants carried diagnoses of schizoaffective disorder or schizophrenia, substance use disorder, or depressive disorder, and their previous experience with structured exercise ranged from years of regular training to none at all.

The intervention itself was deliberately flexible rather than standardized. Each program was adapted to the patient’s preferences, goals, physical condition, and mental capacity, but broadly combined resistance training with aerobic exercise. Strength sessions typically involved whole-body exercises performed in two to three sets of four to fifteen repetitions, with gradual increases in load or repetitions when tolerated. Aerobic work included interval-based and continuous training on a treadmill, with cycling as an alternative when needed. Sessions lasted 45 to 60 minutes and were usually held twice a week, though frequency ranged from one to three sessions weekly. Intensity was monitored using heart rate monitors, the Borg scale of perceived exertion, or a combination of both, depending on each patient’s preference.

Using reflexive thematic analysis, a method that treats participants’ accounts as meaningful while acknowledging the interpretive role of the researchers, the team identified four central themes: follow-up support, symptom reduction, sense of mastery, and activation during hospitalization. The analysis followed a six-step process, from repeated reading of verbatim transcripts through coding, theme development, review, definition, and reporting, with the authors engaging in collaborative discussions throughout to check their interpretations against the data.

The most emphatic theme was the role of the exercise physiologist. Participants described professional support not as a luxury but as the decisive factor in whether they exercised at all. One female participant said the physiologist was “supportive and tailored the training to my needs” and that she was brought to training “regardless of how I was feeling, even when I was at my lowest.” Another man said that without the offer he would have struggled much more to get started, and a third described the support as a “kickstart” when depression and poor fitness made beginning an exercise program feel nearly impossible. Low mood, fatigue, and physical discomfort were real barriers, participants said — one man put it plainly: “When I’m depressed, it’s difficult to have the energy to exercise. It’s so difficult to get started.”

The second theme, symptom reduction, contained the study’s most striking finding: participants reported immediate improvements in mood and perceived well-being following exercise. One woman said, “I noticed that my mood improved immediately. You get a victory for yourself. It’s like, ‘Yes, I did it!’ feeling.” Another described exercise as “my greatest medicine,” noting that after an upsetting, anxious day, a session left her “calm and collected.” A male participant said the effect lasted beyond the moment itself: “Exercise improves my mood, not just temporarily but for the rest of that day.” The effects were not uniform, however. One participant emphasized that exercise did not erase depressive thoughts — “I still have just as many heavy thoughts and feel depressed. But it helps you get through the day” — and some were uncertain whether exercise affected sleep or energy at all.

The third theme, a sense of mastery, extended beyond the gym. Participants described how achieving something concrete in training built confidence that spilled into other areas of life. “Exercise made me gradually achieve more in other areas too,” one man said. Another linked the experience directly to long-term mental health: “You get a sense of mastery when you’ve exercised, and it goes well… in the long run, I think it’s very good for mental health.” The researchers connect this to Bandura’s self-efficacy theory, which holds that experiences of mastery strengthen a person’s belief in their ability to cope with difficulties — a belief that may generalize well beyond physical exercise itself.

Finally, exercise emerged as a way to structure days that might otherwise dissolve into passivity and boredom on the ward. “It made it easier to be hospitalized. I had something to look forward to and something to do instead of just sitting in the ward,” one participant said. Another described pacing back and forth in her room when she did not exercise, but feeling calmer when she did. A third called exercise a coping strategy that “keeps the days going” during a period when she was “dealing with a lot of issues and problems.” The authors note that loss of activity and boredom are well-documented challenges for psychiatric inpatients and can negatively affect the experience of treatment itself.

The researchers are careful about what these findings can and cannot show. Because the study is qualitative and had no comparison condition, it cannot establish that exercise caused the improvements patients described, nor measure treatment efficacy or the optimal dose. The perceived benefits may also reflect individualized professional support, social interaction, increased structure, temporary removal from the ward environment, or behavioral activation — the psychological principle that engagement in meaningful activity can improve mood by restoring access to positively reinforcing experiences, while withdrawal and inactivity cut patients off from them. From this perspective, exercise interrupts inactivity, and its immediate positive consequences may in turn reinforce continued engagement, with professional support bridging the gap when low motivation makes starting difficult. The authors also caution that for some patients exercise can become compulsive or entangled with unhealthy body-image concerns; none of their participants reported this, but they stress that suitability should be assessed individually.

The clinical implications are nonetheless clear. The study suggests that more inpatients should be given the opportunity to exercise regularly, and — critically — that many will need support and facilitation to overcome motivational barriers, making it unrealistic to expect hospitalized patients to train entirely on their own. The findings align with broader evidence: meta-analyses show exercise can be effective for depression and anxiety, healthy people who exercise regularly report 43 percent fewer days of poor mental health, and a prior study found 93 percent of psychiatric inpatients reported mood alleviation from an exercise program. Yet exercise remains underused in mental health care in Norway and many other countries. The authors call for future research focusing specifically on inpatients, a group significantly underrepresented in exercise studies, including work on how different forms of exercise affect different diagnostic subgroups and how participation can be sustained beyond discharge. Exercise, they conclude, should be viewed as a supplement to medication and psychotherapy — not a replacement — but one that patients themselves can actively own in their recovery.

Subject of Research: Experiences of exercise and mental well-being among psychiatric inpatients receiving individualized, professionally supported exercise sessions

Article Title: Experiences of exercise and mental well-being among psychiatric inpatients: a qualitative study

Article References: Bystad, M., Lodewijks, A., Rydland, S., Pettersen, G., García-Fernández, L., Rodriguez-Jimenez, R., & Wynn, R. (2026). Experiences of exercise and mental well-being among psychiatric inpatients: a qualitative study. Frontiers in Psychiatry, 17, Article 1907931. https://doi.org/10.3389/fpsyt.2026.1907931

Image Credits: AI Generated

DOI: 10.3389/fpsyt.2026.1907931

Keywords: exercise, psychiatric inpatients, mental health, qualitative study, depression, anxiety, mood, mastery, exercise physiologist, behavioral activation, hospitalization, psychiatry