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Monma T, Matsui T, Inoue K, Masuchi K, Okada T, Tamura M, Ishii T, Satoh M, Tokuyama K, Takeda F. Prevalence and risk factors of poor subjective sleep quality in elite judo athletes. Sleep Biol Rhythms 2023; 21:289-297. [PMID: 38469080 PMCID: PMC10899990 DOI: 10.1007/s41105-023-00444-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2022] [Accepted: 01/08/2023] [Indexed: 01/14/2023]
Abstract
This study aimed to determine the prevalence and risk factors of poor subjective sleep quality in elite judo athletes. A subjective cross-sectional questionnaire survey was conducted with 106 elite judo athletes who participated in the training camp of the Japanese national team. Eighty-six respondents (men: 52.3%; average age: 22.9 ± 3.1 years) with complete responses were included in the analysis (valid response rate: 81.1%). Subjective sleep quality was assessed using the Pittsburgh Sleep Quality Index (PSQI). The prevalence of poor sleep quality (PSQI score ≥ 5.5), the mean PSQI score, and subscale scores were investigated. Relationships between poor sleep quality and attributes, lifestyle habits, competition-based activities, and psychological distress were explored using Fisher's exact tests and multivariate logistic regression analysis. Thirty-five respondents (40.7%) reported poor sleep quality. The percentage and subscale scores of the respondents for sleep latency, sleep duration, and daytime dysfunction were higher than those of the population of Japanese national-level athletes. The mean PSQI score of the respondents was similar to that of some elite athlete populations but higher than those of others. Multivariate logistic regression analysis revealed that psychological distress was associated with poor sleep quality. In conclusion, the prevalence of poor subjective sleep quality in elite judo athletes was suggested to be similar or higher among elite athlete population. Sleep latency, sleep duration, and daytime dysfunction status were worse in elite judo athletes than in Japanese national-level athletes. Psychological distress was a risk factor for poor subjective sleep quality in elite judo athletes. Supplementary Information The online version contains supplementary material available at 10.1007/s41105-023-00444-6.
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Affiliation(s)
- Takafumi Monma
- Faculty of Health and Sport Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba-Shi, Ibaraki 305-8577 Japan
| | - Takashi Matsui
- Faculty of Health and Sport Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba-Shi, Ibaraki 305-8577 Japan
- All Japan Judo Federation, 1-16-30 Kasuga, Bunkyo-Ku, Tokyo, 112-0003 Japan
| | - Kosei Inoue
- All Japan Judo Federation, 1-16-30 Kasuga, Bunkyo-Ku, Tokyo, 112-0003 Japan
- Department of Physical Education, Tokai University, 4-1-1 Kitakaname, Hiratsuka-Shi, Kanagawa 259-1292 Japan
| | - Katsuyuki Masuchi
- Faculty of Health and Sport Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba-Shi, Ibaraki 305-8577 Japan
- All Japan Judo Federation, 1-16-30 Kasuga, Bunkyo-Ku, Tokyo, 112-0003 Japan
| | - Takashi Okada
- All Japan Judo Federation, 1-16-30 Kasuga, Bunkyo-Ku, Tokyo, 112-0003 Japan
- Faculty of Sport Science, Nippon Sport Science University, 7-1-1 Fukasawa, Setagaya-Ku, Tokyo, 158-8508 Japan
| | - Masahiro Tamura
- All Japan Judo Federation, 1-16-30 Kasuga, Bunkyo-Ku, Tokyo, 112-0003 Japan
- Center for Fundamental Education, Teikyo University of Science, 2-2-1 Senjusakuragi, Adachi-Ku, Tokyo, 120-0045 Japan
| | - Takanori Ishii
- All Japan Judo Federation, 1-16-30 Kasuga, Bunkyo-Ku, Tokyo, 112-0003 Japan
- Center of Liberal Arts Education, Ryotokuji University, 5-8-1 Akemi, Urayasu-Shi, Chiba 279-8567 Japan
| | - Makoto Satoh
- Moriya Snore and Apnea Center, 980-1, Tatezawa, Moriya-Shi, Ibaraki 302-0118 Japan
| | - Kumpei Tokuyama
- International Institute for Integrative Sleep Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba-Shi, Ibaraki 305-8575 Japan
| | - Fumi Takeda
- Faculty of Health and Sport Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba-Shi, Ibaraki 305-8577 Japan
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Suzuki H, Nakayama T, Sawa A, Yagi T, Iwata Y, Takeuchi H, Motoyoshi M, Chow CM, Komiyama O. Mandibular Advancement Device Therapy in Japanese Rugby Athletes with Poor Sleep Quality and Obstructive Sleep Apnea. Life (Basel) 2022; 12:life12091299. [PMID: 36143335 PMCID: PMC9505292 DOI: 10.3390/life12091299] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2022] [Revised: 08/11/2022] [Accepted: 08/20/2022] [Indexed: 11/30/2022] Open
Abstract
Obstructive sleep apnea (OSA) may contribute to poor sleep quality. This study assessed subjective sleep quality, the Respiratory Event Index (REI), reaction times, and the therapeutic effects of a custom-made mandibular advancement device (MAD) in male Japanese elite rugby athletes. The Pittsburgh Sleep Quality Index (PSQI), Epworth Sleepiness Scale (ESS), and level III sleep test (REI and minimum oxygen saturation [SpO2 min]) were used to evaluate sleep quality. MAD therapy was used daily for 3 weeks. A telephone-based reaction time test of kinetic vision (the ability to identify moving objects) was recorded within 15 min of waking and over 5 days of pre- and post-MAD therapy. Differences in variables were evaluated using paired t-tests. Of the 42 players (mean age, 26.3 ± 3.7 years; mean body mass index, 28.7 ± 3.2 kg/m2) included in this study, 29 (69.0%) had poor sleep quality (PSQI > 5.5), and 27 were diagnosed with OSA (64.3%) (mild = 16/moderate = 9/severe = 2). Six were treated with MAD therapy, which significantly improved the REI (p < 0.01), SpO2 min (p < 0.001), ESS score (p < 0.001), reaction times (p < 0.01), and sleep quality. A significant reduction in reaction times suggests that OSA treatment can improve kinetic vision. Future studies should systematically evaluate the impact of sleep-disordered breathing on kinetic vision in athletes.
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Affiliation(s)
- Hiroshi Suzuki
- Department of Oral Function and Fixed Prosthodontics, Nihon University School of Dentistry at Matsudo, Chiba 271-8587, Japan
- Correspondence:
| | - Toshiyuki Nakayama
- Department of Oral Function and Fixed Prosthodontics, Nihon University School of Dentistry at Matsudo, Chiba 271-8587, Japan
| | - Arisa Sawa
- Department of Oral Function and Fixed Prosthodontics, Nihon University School of Dentistry at Matsudo, Chiba 271-8587, Japan
| | - Tatsuo Yagi
- Department of Physical Reaction, Tokai University School of Physical Education, Hiratsuka-shi 259-1292, Japan
| | - Yoshihiro Iwata
- Department of Oral Function and Fixed Prosthodontics, Nihon University School of Dentistry at Matsudo, Chiba 271-8587, Japan
| | - Hiroki Takeuchi
- Department of Oral Function and Fixed Prosthodontics, Nihon University School of Dentistry at Matsudo, Chiba 271-8587, Japan
| | - Miho Motoyoshi
- Department of Oral Function and Fixed Prosthodontics, Nihon University School of Dentistry at Matsudo, Chiba 271-8587, Japan
| | - Chin-Moi Chow
- Sleep Research Group, Charles Perkins Centre, University of Sydney, Sydney 2006, Australia
- Sydney School of Health Sciences, Faculty of Medicine and Health, University of Sydney, Sydney 2006, Australia
| | - Osamu Komiyama
- Department of Oral Function and Fixed Prosthodontics, Nihon University School of Dentistry at Matsudo, Chiba 271-8587, Japan
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Vlahoyiannis A, Sakkas GK, Manconi M, Aphamis G, Giannaki CD. A critical review on sleep assessment methodologies in athletic populations: factors to be considered. Sleep Med 2020; 74:211-223. [PMID: 32861013 DOI: 10.1016/j.sleep.2020.07.029] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/07/2020] [Revised: 05/18/2020] [Accepted: 07/27/2020] [Indexed: 12/13/2022]
Abstract
A growing body of research focus on athletes' sleep in order to investigate the effects of sleep in sports performance and recovery or the prevalence of sleep disorders in athletes. At the same time, several sleep monitoring tools have been developed and used in athletic populations for fulfilling these purposes. This review aimed to provide critical assessment to the most used by athletes' methodological approaches and compared them with the gold standard approach. Advantages and disadvantages of the various sleep monitoring tools were critically discussed. Literature related to aspects of athletes' sleep was reviewed. From the shortlisted studies, several factors that seem to affect sleep in athletes were identified using objective methods such as polysomnography/electroencephalography and actigraphy. These factors were associated to sleep (eg such as sleep environment, familiarization procedures and napping) and daily habits (eg nutrition, fluid consumption, alcohol and caffeine intake, tobacco use). The selected studies that evaluated sleep objectively were screened according the reporting rates of these variables. The majority of the screened studies were found to underreport these variables. Practical issues were addressed and recommendations about reporting sleep-related factors were made in order to improve studies' quality assessment and allow for more robust comparisons between studies.
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Affiliation(s)
| | - Giorgos K Sakkas
- Department of Physical Education and Sport Science, University of Thessaly, Trikala, Greece; School of Sport and Health Sciences, Cardiff Metropolitan University, Cardiff, UK
| | - Mauro Manconi
- Sleep and Epilepsy Center, Neurocenter of Southern Switzerland, Civic Hospital (EOC) of Lugano, Lugano, Switzerland
| | - George Aphamis
- Department of Life and Health Sciences, University of Nicosia, Nicosia, Cyprus
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Wada H, Kimura M, Shirahama R, Ikeda A, Gozal D, Tanigawa T. Pectus excavatum is associated with sleep-related breathing disorders in children. Eur Respir J 2019; 54:13993003.00524-2019. [DOI: 10.1183/13993003.00524-2019] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2019] [Accepted: 06/17/2019] [Indexed: 11/05/2022]
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