Heat stress does not exacerbate tennis-induced alterations in physical performance
| Autor: | Julien D. Périard, Olivier Girard, Ryan J. Christian, Sebastien Racinais |
|---|---|
| Rok vydání: | 2014 |
| Předmět: |
Male
medicine.medical_specialty Hot Temperature Time Factors Physical Therapy Sports Therapy and Rehabilitation Squat Athletic Performance Heat Stress Disorders Thermoregulation Running Young Adult Vertical jump Animal science medicine Humans Biomechanics Orthopedics and Sports Medicine Muscle Strength Muscle Skeletal Fatigue Adaptations of skeletal muscle to exercise and altered neuromuscular activity Leg stiffness Dehydration Chemistry Myalgia General Medicine Heat stress Cold Temperature Sprint Physical performance Tennis Time course Physical therapy Original Article human activities Explosive power |
| Zdroj: | British Journal of Sports Medicine |
| ISSN: | 1473-0480 0306-3674 |
| DOI: | 10.1136/bjsports-2013-093165 |
| Popis: | Objectives To assess the time course of changes in physical performance in response to match-play tennis under heat stress. Methods Two matches consisting of 20 min of effective playing time (2×10 min segments) were played in COOL (∼102 min; ∼22°C and 70% relative humidity (RH)) and HOT (∼119 min; ∼36°C and 35% RH) environments. Repeated-sprint ability (3×15 m, 15 s rest), 15 m sprint time with a direction change (180°), vertical jump height (squat and countermovement jumps) and leg stiffness (multirebound jumps) were assessed in 12 competitive male players prematch, midmatch and postmatch, and 24 and 48 h after match completion. Results During the repeated-sprint ability test, initial (+2.3% and +3.1%) and cumulated sprint (+1.5% and +2.8%) times increased from prematch to midmatch and postmatch, respectively (p0.05), decreased midmatch and postmatch, respectively, regardless of the condition. Complete recovery in all physical performance markers occurred within 24 h. Conclusions In tennis, match-related fatigue is characterised by impaired repeated-sprint ability, explosive power and leg stiffness at midmatch and postmatch, with values restored to prematch baseline 24 h into recovery. In addition, physical performance responses (match and recovery kinetics) are identical when competing in cool and hot environments. |
| Databáze: | OpenAIRE |
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