Effects of Long-Haul Transmeridian Travel on Subjective Jet-Lag and Self-Reported Sleep and Upper Respiratory Symptoms in Professional Rugby League Players

International Journal of Sports Physiology and Performance
Peter M FowlerTannath J Scott

Abstract

To examine the effects of 24-h travel west across 11 time zones on subjective jet-lag and wellness responses together with self-reported sleep and upper respiratory symptoms in 18 professional rugby league players. Measures were obtained 1 or 2 d before (pretravel) and 2, 6, and 8 d after travel (post-2, post-6, and post-8) from Australia to the United Kingdom (UK) for the 2015 World Club Series. Compared with pretravel, subjective jet-lag remained significantly elevated on post-8 (3.1 ± 2.3, P < .05, d > 0.90), although it was greatest on post-2 (4.1 ± 1.4). Self-reported sleep-onset times were significantly earlier on post-2 than at all other time points (P < .05, d > 0.90), and large effect sizes suggested that wake times were earlier on post-2 than on post-6 and post-8 (d > 0.90). Although significantly more upper respiratory symptoms were reported on post-6 than at pretravel (P < .05, d ˃ 0.90), no incidence of injury and negligible changes in wellness and muscle strength and range of motion (P > .05, d < 0.90) were evident after travel. Results suggest that westward long-haul travel between Australia and the UK exacerbates subjective jet-lag and sleep responses, along with upper respiratory symptoms, in professional rugby...Continue Reading

Citations

Aug 19, 2016·British Journal of Sports Medicine·Torbjørn SoligardLars Engebretsen
Aug 19, 2016·British Journal of Sports Medicine·Martin SchwellnusLars Engebretsen
Oct 30, 2018·The Physician and Sportsmedicine·Julio Calleja-GonzálezNicolas Terrados
Apr 14, 2018·International Journal of Sports Physiology and Performance·Sarah KöllingShona L Halson
Oct 11, 2017·Journal of Strength and Conditioning Research·Peter M FowlerLee Taylor
Jan 1, 2020·International Journal of Sport Nutrition and Exercise Metabolism·Alan J McCubbinLouise M Burke
Feb 8, 2019·BMJ Open Sport & Exercise Medicine·João Gustavo ClaudinoGeorge P Nassis
Jul 19, 2017·Medicine and Science in Sports and Exercise·Peter M FowlerRob Duffield
Dec 12, 2017·The Physician and Sportsmedicine·Michelle BigginsKieran O'Sullivan
Dec 3, 2016·Sports Medicine·Luke GuptaSarah Gilchrist
Dec 3, 2020·Journal of Science and Medicine in Sport·Lauren C KeaneyDeborah K Dulson
Apr 9, 2021·International Journal of Sports Physiology and Performance·Benita J LalorStuart J Cormack
Dec 12, 2020·Journal of Science and Medicine in Sport·Lucy ChessonBen Jones
Sep 25, 2021·International Journal of Sports Physiology and Performance·Jonathon R LeverHugh H K Fullagar

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