Hui-Mei Chen1, Denise Shuk Ting Cheung2, Yi-Yun Lin3, Yu-Chung Wu4, Chieh-Yu Liu5, Kuan-Chia Lin6, Yu-Jung Lin1, Chia-Chin Lin2,7,8. 1. School of Nursing, College of Nursing, National Taipei University of Nursing and Health Sciences, Taipei, Taiwan. 2. School of Nursing, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Pokfulam, Hong Kong. 3. School of Nursing, Shu Zen College of Medicine and Management, Kaohsiung, Taiwan. 4. Division of Thoracic Surgery, Department of Surgery, Taipei Medical University Hospital, Taipei, Taiwan. 5. Department of Speech Language Pathology and Audiology, National Taipei University of Nursing and Health Sciences, Taipei, Taiwan. 6. Community Medicine Research Center, National Yang-Ming University, Taipei, Taiwan. 7. School of Nursing, College of Nursing, Taipei Medical University, Taipei, Taiwan. 8. Alice Ho Miu Ling Nethersole Charity Foundation Professor in Nursing, Pokfulam, Hong Kong.
Abstract
OBJECTIVE: To explore the relationship of exercise timing (exercising close to bedtime, exercising in daylight and maintaining fixed exercise schedule) with sleep quality, fatigue and rest-activity rhythms among lung cancer patients in Taiwan. METHODS: Results from 43 lung cancer patients who were assigned and adhered to theexercise intervention in a 12-week randomised controlled trial were analysed. The MD Anderson Symptom Inventory and Pittsburgh Sleep Quality Index (PSQI) were administered. Actigraphs were used to assess rest-activity rhythms (in-bed less than out-of-bed dichotomy index, I < O) and objective sleep parameters, including total sleep time (TST) and sleep onset latency (SOL). RESULTS: Patients who exercised >4 hr before bedtime had significant improvement in fatigue (p < .0001), sleep quality (p = .012 for PSQI; p = .037 for TST; p = .017 for SOL) and rest-activity rhythms (p = .048 for I < O). Furthermore, patients who exercised with daylight exposure had a significant improvement in fatigue (p = .037) and sleep quality (p = .039 for PSQI). CONCLUSIONS: Exercising >4 hr before bedtime with daylight exposure is associated with improvement in rest-activity rhythms, sleep quality and fatigue in lung cancer patients. The causal relationship requires further investigation with experimental design.
RCT Entities:
OBJECTIVE: To explore the relationship of exercise timing (exercising close to bedtime, exercising in daylight and maintaining fixed exercise schedule) with sleep quality, fatigue and rest-activity rhythms among lung cancerpatients in Taiwan. METHODS: Results from 43 lung cancerpatients who were assigned and adhered to the exercise intervention in a 12-week randomised controlled trial were analysed. The MD Anderson Symptom Inventory and Pittsburgh Sleep Quality Index (PSQI) were administered. Actigraphs were used to assess rest-activity rhythms (in-bed less than out-of-bed dichotomy index, I < O) and objective sleep parameters, including total sleep time (TST) and sleep onset latency (SOL). RESULTS:Patients who exercised >4 hr before bedtime had significant improvement in fatigue (p < .0001), sleep quality (p = .012 for PSQI; p = .037 for TST; p = .017 for SOL) and rest-activity rhythms (p = .048 for I < O). Furthermore, patients who exercised with daylight exposure had a significant improvement in fatigue (p = .037) and sleep quality (p = .039 for PSQI). CONCLUSIONS: Exercising >4 hr before bedtime with daylight exposure is associated with improvement in rest-activity rhythms, sleep quality and fatigue in lung cancerpatients. The causal relationship requires further investigation with experimental design.