Effects of exercise on mental and physical health parameters of persons with schizophrenia. A pilot study of a supervised group exercise programme as a rehabilitation treatment for women with breast cancer receiving adjuvant treatment.
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. This pilot study examined whether exercise as an adjunctive rehabilitation therapy could benefit women who have early stage breast cancer and are currently receiving chemotherapy/radiotherapy. The study was designed as a randomised controlled trial (RCT). Physical functioning, fatigue and Quality of Life (QoL) outcomes were evaluated pre and post a 12-week intervention. The results showed that after 12 weeks the women who participated in the exercise programme (n = 12) displayed significantly higher levels of physical functioning and reported higher QoL scores than the controls (n = 10). Changes in fatigue and satisfaction with life favoured the intervention group but did not reach significance. These results are encouraging and suggest that a structured group exercise programme during adjuvant treatment is a safe, well tolerated and effective way of providing physical and psychological health benefits to women during treatment for early stage breast cancer. Since this was a pilot study the numbers did not allow appropriately powered analyses of some variables of interest and favoured relatively young and socio-economically advantaged women. Future studies need to address these issues and determine if these short-term benefits can be sustained.
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.