Effects of exercise on mental and physical health parameters of persons with schizophrenia. Yoga therapy as an add-on treatment in the management of patients with schizophrenia--a randomized controlled trial.
Although the benefits of exercise are well documented, few published research studies have examined exercise in persons with schizophrenia. This pilot examined a 16-week walking program for outpatients diagnosed with schizophrenia (N = 10). Six-minute walking distance, body mass index, percent body fat and severity of psychiatric symptoms were measured. Experimental participants in the walking group experienced significant reductions in body fat (p = 0.03) compared to a control group not participating in the exercises during the same time period. Experimental participants also had greater aerobic fitness, lower body mass indexes, and fewer psychiatric symptoms than controls at the conclusion of the program. Research is needed to identify effective exercise interventions and feasible delivery modalities for persons with schizophrenia in community settings. Treatment of schizophrenia has remained unsatisfactory despite the availability of antipsychotics. This study examined the efficacy of yoga therapy (YT) as an add-on treatment to the ongoing antipsychotic treatment.
                Sixty-one moderately ill schizophrenia patients were randomly assigned to YT (n = 31) and physical exercise therapy (PT; n = 30) for 4 months. They were assessed at baseline and 4 months after the start of intervention, by a rater who was blind to their group status.
                Forty-one subjects (YT = 21; PT = 20) were available at the end of 4 months for assessment. Subjects in the YT group had significantly less psychopathology than those in the PT group at the end of 4 months. They also had significantly greater social and occupational functioning and quality of life.
                Both non-pharmacological interventions contribute to reduction in symptoms, with YT having better efficacy.
Results of this Cochrane review are similar to existing reviews that have examined the health benefits of exercise in this population. Although studies included in this review are small and used various measures of physical and mental health, results indicated that regular exercise programmes are possible in this population, and that they can have healthful effects on both the physical and mental health and well-being of individuals with schizophrenia. Larger randomised studies are required before any definitive conclusions can be drawn.