Research frequently indicates that exercise enhances mental health; however, a recent study from the University of Georgia demonstrates that factors beyond physical movement also influence mental well-being. The manner, location, and rationale of your exercise are what distinguish its effectiveness.

“Historically, physical activity research has focused on how long someone exercises for or how many calories were burned,” stated Patrick O’Connor. He is the co-author of the study and a professor in the Mary Frances Early College of Education’s Department of Kinesiology. “The ‘dose’ of exercise has been the dominant way researchers have tried to understand how physical activity might influence mental health, while often ignoring whether those minutes were spent exercising with a friend or as part of a game.”

Research indicates that leisure-time physical activity—such as running, attending yoga classes, or recreational biking—correlates with improved mental health outcomes; however, these benefits may vary considerably based on the surrounding environment and circumstances, as noted by the researchers.

The researchers examined three categories of papers to analyse these characteristics. These encompassed extensive epidemiological research that analysed health trends in populations, randomised controlled trials in which certain groups received exercise interventions while others did not, and a comparatively smaller yet expanding collection of enquiries into contextual factors.

Mental Health and Exercise

Numerous studies indicate that those who participate in regular leisure-time physical activity generally report reduced levels of depression and anxiety. However, the clarity diminishes about other activities such as domestic cleaning or employment with a lawn care service. The setting may be as significant as the intensity or volume of physical activity.

“For example, if a soccer player runs down the field and kicks the game-winning ball, their mental health is fantastic,” O’Connor stated. “In contrast, if you do the exact same exercise but miss the goal and people are blaming you, you likely feel very differently. Anecdotes such as these show how context matters even when people are performing a similar exercise dose.”

Multiple randomised controlled trials demonstrated that the implementation of regular exercise regimens enhanced mental health, particularly in persons with preexisting mental health conditions. Nevertheless, these studies were generally conducted on small, short-term, and homogeneous samples, rendering the conclusions likely non-generalizable to larger, more diverse populations.

“The average effects on mental health are small across all the randomized controlled studies of exercise, and that’s partly because most of the studies focused on people who were not depressed or anxious — you do get bigger effects in those studies,” added O’Connor. “We’re communicating to scientists that larger- and longer-term controlled studies are needed to make a compelling case whether exercise does, or does not, truly impact mental health.”

The significance of context

The evidence is least robust — yet possibly most significant — in comprehending contextual influences. The same physical action can evoke distinct sensations based on the companions involved, as well as the location, timing, and manner of execution.

The context may fluctuate due to peer interactions, teaching methodologies, or environmental factors like weather and time of day. “If you’re outside and it’s hot, and you’re having to walk to work, that’s part of the context,” he added. “Or if you go and take a group exercise class — some instructors you really like, and some you don’t. So, that’s also part of the context.”

“If we’re trying to help people’s mental health with exercise, then not only do we need to think about the dose and the mode, we also need to ask: What is the context?” O’Connor said.

O’Connor’s conclusion is unequivocal. Movement is not the sole factor of significance. The significance, context, and experience associated with the activity dictate the influence of exercise on mental health.

The study’s co-authors are Eduardo Bustamante from the University of Illinois, Chicago, Angelique Brellenthin from Iowa State University, and David Brown, a recent retiree from the Centers for Disease Control and Prevention.

Original Publication
Authors: EDUARDO E. BUSTAMANTE, ANGELIQUE G. BRELLENTHIN, DAVID R. BROWN and PATRICK J. O’CONNOR.
Journal: Medicine & Science in Sports & Exercise
DOI: 10.1249/MSS.0000000000003636
Article Title: Up for Debate: Does Regular Physical Activity Really Improve Mental Health?
Article Publication Date: 1-May-2025