The effects of a roundtrip trans-American jet travel on physiological stress, neuromuscular performance, and recovery
| Autor: | Keijo Häkkinen, Catherine Saenz, Steven J. Fleck, Hui-Ying Luk, Daniela Eklund, Lydia K. Caldwell, Lee E. Brown, William J. Kraemer, Elaine C. Lee, Jeff S. Volek, Carl M. Maresh, David R. Hooper, Tunde K. Szivak, Brian R. Kupchak, Shawn D. Flanagan, Jakob L. Vingren, William H. DuPont |
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| Rok vydání: | 2016 |
| Předmět: |
Adult
Male medicine.medical_specialty Injury control Physiology Accident prevention Poison control Athletic Performance circadian patterns power 03 medical and health sciences 0302 clinical medicine Physical medicine and rehabilitation Stress Physiological Physiology (medical) medicine Humans ta315 Physiological stress Intermittent Pneumatic Compression Devices Jet Lag Syndrome Jet (fluid) Travel Sleep quality muscular performance 030229 sport sciences Recovery of Function Hormones United States Surgery Circadian Rhythm endocrine system Muscle Fatigue Female neuromuscular Psychology Sleep umpieritys 030217 neurology & neurosurgery |
| Zdroj: | Journal of applied physiology (Bethesda, Md. : 1985). 121(2) |
| ISSN: | 1522-1601 |
| Popis: | The purpose was to examine the effects of a round trip trans-American jet travel on performance, hormonal alterations, and recovery. Ten matched pairs of recreationally trained men were randomized to either a compression group (COMP) ( n = 10; age: 23.1 ± 2.4 yr; height: 174.8 ± 5.3 cm; body mass: 84.9 ± 10.16 kg; body fat: 15.3 ± 6.0%) or control group (CONT) ( n = 9; age: 23.2 ± 2.3 yr; height: 177.5 ± 6.3 cm; weight: 84.3 ± 8.99 kg; body fat: 15.1 ± 6.4%). Subjects flew directly from Hartford, CT to Los Angeles, CA 1 day before a simulated sport competition (SSC) designed to create muscle damage and returned the next morning on an overnight flight back home. Both groups demonstrated jet lag symptoms and associated decreases in sleep quality at all time points. Melatonin significantly ( P < 0.05) increased over the first 2 days and then remained constant until after the SSC. Epinephrine, testosterone, and cortisol values significantly increased above resting values before and after the SSC with norepinephrine increases only after the SSC. Physical performances significantly decreased from control values on each day for the CONT group with COMP group exhibiting no significant declines. Muscle damage markers were significantly elevated following the SSC with the COMP group having significantly lower values while maintaining neuromuscular performance measures that were not different from baseline testing. Trans-American jet travel has a significant impact on parameters related to jet lag, sleep quality, hormonal responses, muscle tissue damage markers, and physical performance with an attenuation observed with extended wear compression garments. |
| Databáze: | OpenAIRE |
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