Effects of dynamic and static relaxation therapy on cancer-induced fatigue and sleep disorders in patients with breast cancer undergoing chemotherapy: a randomized control trial

Purpose To investigate the effects of dynamic-static combined relaxation therapy on fatigue and sleep disorders in breast cancer patients undergoing chemotherapy. Methods A total of 114 patients receiving chemotherapy at Tangshan People’s Hospital (September 2023–June 2024) were randomly divided into three groups: control (routine nursing), experiment group 1 (static Benson relaxation), and experiment group 2 (dynamic yoga + static Benson relaxation). The intervention lasted 8 weeks. Cancer-related fatigue and sleep disorders were assessed before and after intervention using the Revised Piper Fatigue Scale and the Pittsburgh Sleep Quality Index (PSQI). Results Prior to intervention, there were no significant differences in fatigue and sleep quality across groups ( P > 0.05). Post-intervention, both experiment groups showed significant improvements in fatigue and sleep quality compared to the control ( P