Physiological Responses and Predictors of Performance in a Simulated Competitive Ski Mountaineering Race
| Autor: | Thomas Stöggl, John Seifert, Anna Maria Wörndle, Michael Lasshofer |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Adult
Male Competitive Behavior ski mountaineering winter sports physiology Physical Therapy Sports Therapy and Rehabilitation Athletic Performance 03 medical and health sciences Oxygen Consumption 0302 clinical medicine Animal science Heart Rate Skiing Task Performance and Analysis Heart rate Blood lactate Humans Medicine Orthopedics and Sports Medicine Elite athletes Lactic Acid Power output predictors of performance competition simulation biology Athletes business.industry performance diagnosis Ski mountaineering 030229 sport sciences biology.organism_classification Physiological responses Mountaineering oxygen uptake Physical Fitness GV557-1198.995 Sports medicine Ventilatory threshold business human activities RC1200-1245 030217 neurology & neurosurgery Research Article Sports |
| Zdroj: | Journal of Sports Science and Medicine, Vol 20, Iss 2, Pp 250-257 (2021) J Sports Sci Med |
| ISSN: | 1303-2968 |
| Popis: | Competitive ski mountaineering (SKIMO) has achieved great popularity within the past years. However, knowledge about the predictors of performance and physiological response to SKIMO racing is limited. Therefore, 21 male SKIMO athletes split into two performance groups (elite: VO2max 71.2 ± 6.8 ml· min-1· kg-1 vs. sub-elite: 62.5 ± 4.7 ml· min-1· kg-1) were tested and analysed during a vertical SKIMO race simulation (523 m elevation gain) and in a laboratory SKIMO specific ramp test. In both cases, oxygen consumption (VO2), heart rate (HR), blood lactate and cycle characteristics were measured. During the race simulation, the elite athletes were approximately 5 min faster compared with the sub-elite (27:15 ± 1:16 min; 32:31 ± 2:13 min; p < 0.001). VO2 was higher for elite athletes during the race simulation (p = 0.046) and in the laboratory test at ventilatory threshold 2 (p = 0.005) and at maximum VO2 (p = 0.003). Laboratory maximum power output is displayed as treadmill speed and was higher for elite than sub-elite athletes (7.4 ± 0.3 km h-1; 6.6 ± 0.3 km h-1; p < 0.001). Lactate values were higher in the laboratory maximum ramp test than in the race simulation (p < 0.001). Pearson’s correlation coefficient between race time and performance parameters was highest for velocity and VO2 related parameters during the laboratory test (r > 0.6). Elite athletes showed their superiority in the race simulation as well as during the maximum ramp test. While HR analysis revealed a similar strain to both cohorts in both tests, the superiority can be explainable by higher VO2 and power output. To further push the performance of SKIMO athletes, the development of named factors like power output at maximum and ventilatory threshold 2 seems crucial. |
| Databáze: | OpenAIRE |
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