A reliable preloaded cycling time trial for use in conditions of significant thermal stress
| Autor: | Stephen R. Stannard, R. H. Morton, M. R. Che Jusoh, Toby Mündel |
|---|---|
| Rok vydání: | 2015 |
| Předmět: |
medicine.medical_specialty
Intraclass correlation business.industry Coefficient of variation Dietary control Physical Therapy Sports Therapy and Rehabilitation Preload Time trial Time of day Physical therapy medicine Orthopedics and Sports Medicine business Cycling human activities Reliability (statistics) |
| Zdroj: | Scandinavian Journal of Medicine & Science in Sports. 25:296-301 |
| ISSN: | 0905-7188 |
| DOI: | 10.1111/sms.12332 |
| Popis: | The purpose of this study was to assess the reliability of a 15-min time trial preloaded with 45 min of fixed-intensity cycling under laboratory conditions of thermal stress. Eight trained cyclists/triathletes (41 ± 10 years, VO2peak: 69 ± 8 mL/kg/min, peak aerobic power: 391 ± 72 W) completed three trials (the first a familiarization) where they cycled at ∼ 55% VO2peak for 45 min followed by a 15-min time trial (∼75% VO2peak) under conditions of significant thermal stress (WBGT: 26.7 ± 0.8 °C, frontal convective airflow: 20 km/h). Seven days separated the trials, which were conducted at the same time of day following 24 h of exercise and dietary control. Reliability increased when a familiarization trial was performed, with the resulting coefficient of variation and intraclass correlation coefficient of the work completed during the 15-min time trial, 3.6% and 0.96, respectively. Therefore, these results demonstrate a high level of reliability for a 15-min cycling time trial following a 45-min preload when performed under laboratory conditions of significant thermal stress using trained cyclists/triathletes. |
| Databáze: | OpenAIRE |
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