Reza Nouri - Department of Sport Sciences, Kish International Campus, University of Tehran, Kish Island, Iran
Jan Schroeder - Department of Sports and Exercise Medicine, Faculty of Psychology and Human Movement Science, University of Hamburg, Hamburg, Germany
Bahareh Mahmudieh Champiri - Department of Sport Sciences, Kish International Campus, University of Tehran, Kish Island, Iran
Mahdieh Akochakian - Department of Sport Sciences, Kish International Campus, University of Tehran, Kish Island, Iran

Background: Balance impairment is related to breast cancer treatments, such as radiation therapy and chemotherapy. The aim of the present study was to investigate the effect of six-week resistance training with Thera-Band and combined training (training with Thera-Band and core stability training) on static and dynamic balance in breast cancer survivors. Methods: In this randomized controlled trail, we divided ۷۵ patients with breast cancer into three groups: ۱) resistance training group (n=۲۵, age= ۴۶±۵.۸۲, BMI= ۲۵.۷±۳.۹), combined training group, (n=۲۵, age= ۴۸.۹ ± ۷.۰۶, BMI=۲۴.۶ ± ۳.۵), and control group (n=۲۵, age= ۴۶±۷.۱۵, BMI= ۲۵.۱۷±۳.۷). Afterwards, we employed Single leg standing and Balance Error Scoring System (BESS) to measure the static balance; Four Square Step Test (FSST) and Timed Up and Go (TUG) were further used for dynamic balance in pre- and post-test. Exercise program was performed by two training groups for six weeks and three sessions per week. Resistance training with Thera-Band group performed ۱۳ resistance trainings with Thera-Band. In combined group, resistance training was similar to Thera-Band group, but combined group were performed seven core stability trainings. We analyzed the data by two-way repeated measurements ANOVA using the software package SPSS V.۲۲. Results: Results showed that there were no significant interaction effects indicating an exercise specific development, depending on the type of exercise or control condition (P>۰.۰۵). Furthermore, there were no significant deference among the resistance training with Thera-Band, the combined exercise, and the control groups (P>۰.۰۵). Conclusion: It can be concluded that the six-week resistance training with Thera- Band and combined training (training with Thera-Band and core stability training) has no positive effects on static and dynamic balance in breast cancer survivors. We recommend that more studies be conducted in this regard.

Resistance training, Core stability training, Breast cancer