Yuko Morita1, Taeko Sasai-Sakuma2, Yuichi Inoue3. 1. Department of Liberal Arts, Faculty of Science and Technology, Tokyo University of Science, Chiba, Japan. 2. Department of Somnology, Tokyo Medical University, Tokyo, Japan; Department of Life Sciences and Bioinformatics, Division of Biomedical Laboratory Sciences, Graduate School of Health Sciences, Tokyo Medical and Dental University, Tokyo, Japan. 3. Department of Somnology, Tokyo Medical University, Tokyo, Japan; Japan Somnology Center, Institute of Neuropsychiatry, Tokyo, Japan. Electronic address: inoue@somnology.com.
Abstract
OBJECTIVES: The aims of this study were to compare the effects of acute morning or evening exercise on nocturnal sleep in individuals with two subjective insomnia symptoms: difficulty in initiating sleep (DIS), and early morning awakening (EMA), separately for the first vs the second halves of the night. METHODS:Older individuals (55-65 years old) with DIS (N = 15) or EMA (N = 15) and age- and sex-matched controls (N = 13) participated in this non-randomized crossover study. Participants were assigned to two exercise conditions (morning exercise and evening exercise) in counterbalanced order following the baseline condition with a two-week interval between conditions. A single session of aerobic step exercise was performed during each exercise condition. Nocturnal polysomnography was carried out to evaluate objective sleep quality. Patient global impression of change scale scores for nocturnal sleep were obtained to subjectively evaluate the different groups. RESULTS:Acute physical exercise did not improve subjective sleep quality. Morning exercise decreased the number of stage shifts over the whole night. The arousal index and the number of stage shifts were decreased especially during the second half of the night in all groups. Furthermore, morning exercise decreased the number of wake stages during the second half of the night in the DIS group, but not in the EMA group. CONCLUSIONS:Acute morning exercise can improve nocturnal sleep quality in individuals with difficulty initiating sleep, especially during the later part of the night.
RCT Entities:
OBJECTIVES: The aims of this study were to compare the effects of acute morning or evening exercise on nocturnal sleep in individuals with two subjective insomnia symptoms: difficulty in initiating sleep (DIS), and early morning awakening (EMA), separately for the first vs the second halves of the night. METHODS: Older individuals (55-65 years old) with DIS (N = 15) or EMA (N = 15) and age- and sex-matched controls (N = 13) participated in this non-randomized crossover study. Participants were assigned to two exercise conditions (morning exercise and evening exercise) in counterbalanced order following the baseline condition with a two-week interval between conditions. A single session of aerobic step exercise was performed during each exercise condition. Nocturnal polysomnography was carried out to evaluate objective sleep quality. Patient global impression of change scale scores for nocturnal sleep were obtained to subjectively evaluate the different groups. RESULTS: Acute physical exercise did not improve subjective sleep quality. Morning exercise decreased the number of stage shifts over the whole night. The arousal index and the number of stage shifts were decreased especially during the second half of the night in all groups. Furthermore, morning exercise decreased the number of wake stages during the second half of the night in the DIS group, but not in the EMA group. CONCLUSIONS: Acute morning exercise can improve nocturnal sleep quality in individuals with difficulty initiating sleep, especially during the later part of the night.
Authors: Jennifer M Blankenship; Rebecca C Rosenberg; Corey A Rynders; Edward L Melanson; Victoria A Catenacci; Seth A Creasy Journal: Int J Sports Med Date: 2021-05-25 Impact factor: 2.997
Authors: Carolina V R D'Aurea; Dalva Poyares; Giselle S Passos; Marcos G Santana; Shawn D Youngstedt; Altay A Souza; Juliana Bicudo; Sergio Tufik; Marco T de Mello Journal: Braz J Psychiatry Date: 2018-10-11 Impact factor: 2.697