4. Discussion
schizophrenia, injuries
DISEASE
The major finding of the study was that the aerobic physical intervention program reduced weight, body mass index and blood pressure and increased time exercising, whereas the postural physical intervention showed an improvement in sedentary behavior through SIMPAQ and 6MWT. No effects were seen in flexibility and disease severity in both groups.The increase in the practice of physical activity and the reduction of sedentary behavior are gaining more visibility in research and clinical attention due to the feasibility and effectiveness of exercise programs integrated into the range of therapeutic approaches to schizophrenia. On the SIMPAQ scale in the initial assessment, the PPI group spent more time staying in bed than the API group; the API group initially spent 41%/day sleeping and after the intervention spent 40%, and the PPI group spent 45%/day sleeping and after the intervention spent 42%. People with schizophrenia engage in less physical activity than the general population [Patients in both groups received no specific dietetic orientation, and only API had an effect on BMI (The study evidenced a significant improvement in several domains of the SF-36 scale, in support of several previous studies demonstrating the need for new interventions to increase the quality of life in patients diagnosed with schizophrenia. The PPI group showed similar effects of other interventions such as yoga and dance. Cramer [Several physiological effects of stretching included elastic property referring to the capability of the tendon muscle unit to return to its original length after being stretched; the analgesic effect; the anti-inflammatory effect in the injuries of muscle fibers, among others [On the other hand, unexpectedly, the functional capacity in the API group did not show significant improvement after the intervention, only in the PPI group. Patients in the API group were 13% below the predicted minimum level and after the intervention remained as such (15% below the expected) and patients in the PPI group were 29% below the minimum predicted level, improving 27%. This also occurred in other studies. Vancampfort [The limited effect of interventions can relate to the following study limitations: (1) limited sample size that may have interfered with our result; and (2) limited time intervention (perhaps the 3 month duration in physical interventions did not provide enough time for clinical and functional response). The worsening of some aspects such as the total BPRS scores or the unexpected results of the 6MWT represents a great challenge. We should have included a third group of patients with schizophrenia who did not realize any physical intervention. In this article, we do not consider the doses and types of antipsychotic drugs or the side effects that they can cause; however, they should be considered in future studies. Another important limitation is the difficulty to standardize specific exercise, real effort dispended and type, frequency and intensity of practice. These factors can affect the outcomes. Additionally, we must consider the effect of the difficulty in patient management and patient motivation affecting observed outcomes.