The effect of sports rehabilitation exercises with vitamin D consumption on strength, muscle flexibility and heart rate variability (HRV) of people with osteosarcoma cancer after bone marrow stem cell transplantation

The purpose of this study was to investigate the effect of sports rehabilitation exercises with vitamin D consumption on strength, muscle flexibility and heart rate variability (HRV) of people with osteosarcoma cancer after bone marrow stem cell transplantation. ۴۰ people with body mass index above ۳۰ kg/m۲, age ۲۴.۹۰±۴.۰۳ years, height ۱۶۳.۸۵±۳.۶۲ cm and weight ۸۲.۱۷±۴.۵ kg participated in the research. In this study, ۴۰ women with osteosarcoma cancer were randomly divided into four groups (patient-exercise), (patient-exercise-vitamin D), (patient-exercise-placebo) and (control). The training protocol includes ten weeks of Pilates exercise. The weekly supplement group consumed ۵۰۰ IU of vitamin D for ۱۰ weeks. The data were analyzed using dependent t-test and one-way analysis of variance. The results of the research showed that after ten weeks of vitamin D consumption, following Pilates activity, muscle strength increased significantly, and heart rate decreased significantly (P≤۰.۰۵). And flexibility did not change significantly (P≥۰.۰۵). Based on the obtained results, it is suggested that vitamin D consumption along with sports rehabilitation can be an effective treatment method to reduce heart rate and increase muscle and functional strength of people with osteosarcoma cancer.