Impact of Exercise Groups on Patient Mental Health and Wellbeing in an Acute Psychiatric Inpatient Unit

Growing evidence suggests that physical activity is associated with increased cognitive functioning and improved mental health. A recent meta-analysis demonstrated an inverse, dose-response association between physical activity and depression, particularly at lower activity volumes. Similarly, exercise has been shown to be associated with decreased anxiety, improved sleep, and reduced cognitive deficits in outpatient settings.

Despite the beneficial impacts of regular physical activity on mental health, physical activity is often low in psychiatric inpatient settings. Common barriers to exercise include lack of time and resources, limited staff knowledge, and competing treatment priorities. Organizational policy such as strict security procedures and restricted patient movement may also limit consistent integration of exercise into care. Finally, individuals with severe mental illness more commonly have sedentary lifestyles and may experience sedative side-effects of medication, which further limit ability to engage in physical activity.

There is limited literature on the impact of interventions aimed at increasing physical activity in psychiatric inpatient settings, however preliminary research suggests that these interventions may have positive short-term impacts on patients' mood and self-esteem. Investigators have found that over 90% of inpatients noted improved mood and body perception immediately following a structured exercise program. Moreover, there is evidence that psychiatric inpatients have a positive viewpoint of psychical activity intervention as part of psychiatric treatment and believe it will benefit the patients health. Given these findings, more research is needed to elucidate the impacts of physical activity interventions on short- and long-term activity and neuropsychiatric symptoms (NPS) in psychiatric inpatients and to support its advantages when compared to current standards of care.

Thus, to investigate the impact of regular exercise on activity level, NPS, and sleep in an inpatient psychiatry unit, the investigators propose a placebo-controlled study with measures of activity, mood, anxiety, energy, and sleep as primary outcomes in 60 psychiatric inpatients at Johns Hopkins Hospital. Half of the participants will be assigned to the exercise intervention (EXI) group, and the other half will be assigned to the treatment as usual (TAU) group. Group assignment will be made based on timing of study enrollment - the first 30 participants will be assigned to the TAU group, while the subsequent 30 participants will be assigned to the EXI group. Activity will be measured via actigraphy and self-report.