Institute of Sports Medicine, University Clinics of Innsbruck , Austria.
Department of Internal Medicine, University Clinics of Innsbruck , Austria.
J Sports Sci Med. 2002 Mar 20;1(1):20-6. eCollection 2002 Mar.
The physiological effects of ultraendurance exercise are poorly investigated. The present case report describes the exercise intensity of ultraendurance cycling and its physiological impacts on various organ functions in an amateur cyclist performing the Ötztal Radmarathon twice en bloque in a circuit of 2 identical laps (distance 460 km; cumulative altitude difference 11,000 m). In a pre-race laboratory test the athlete's performance capacity was measured as the maximal aerobic power (VO2max= 70 ml.kg(-1).min(-1)), a maximal power output (5.7 W.kg(-1)) and lactate threshold of 89%. The overall intensity during the ride was moderate (HRmean = 131 b.min(-1); %HRmax = 0.71) and significantly declined during the course of the race. Extensive biochemical laboratory testing performed pre- and post-race excluded major exercise-induced organ disturbances. For further confirmation and better understanding of the physiological effects of ultra-cycle events future studies of larger athlete populations are required.
超耐力运动的生理效应研究甚少。本病例报告描述了一位业余自行车运动员在Ötztal 自行车马拉松赛中两次连续完成 2 个相同的环圈（总距离 460 公里；累计海拔差 11000 米）的超耐力自行车运动强度及其对各种器官功能的生理影响。在赛前实验室测试中，运动员的运动能力被测量为最大有氧能力（VO2max=70ml.kg(-1).min(-1)）、最大功率输出（5.7W.kg(-1)）和 89%的乳酸阈。整个骑行过程中的运动强度适中（HRmean=131 b.min(-1)；%HRmax=0.71），并且在比赛过程中显著下降。赛前和赛后的广泛生化实验室测试排除了主要的运动引起的器官紊乱。为了进一步确认和更好地理解超耐力自行车运动的生理效应，需要对更大的运动员群体进行未来的研究。
