De Vito G, Di Filippo L, Rodio A, Felici F, Madaffari A
Human Physiology Institute, University La Sapienza, Rome, Italy.
Int J Sports Med. 1997 May;18(4):281-4. doi: 10.1055/s-2007-972634.
The present study was carried out in order to describe the physiological profile of top Olympic boa rdsailors of both genders and to measure the energy cost during actual boardsailing with particular attention to the most demanding conditions. Fourteen elite Olympic boardsailors (7 males and 7 females) volunteered to participate in the study. Each subject underwent a maximal cycle ergometer test in orderto measure VO2peak and ventilatory threshold (Tvent). Additionally, anthropometric measurements including body fat percentage were taken. The cardiorespiratory demand and the energy cost of actual boardsailing were assessed by means of a very light telemetric device (K2 Cosmed) which allowed the measurements of VO2, VE and HR. VO2peak was 63.6 +/- 2.3 ml x kg(-1) x min(-1) (Tvent 70% of maximum) and 49.2 +/- 4.1 (Tvent 60% of maximum) in males and females, respectively. The data recorded during actual boardsailing show that this sport activity can be classified as aerobic, the VO2 values being above or very close to those of Tvent values (75% and 60% of the maximum in males and females). Furthermore the mean blood lactate values obtained at the end of each regatta testing were 6 +/- 2 mMol x l(-1) in males and 5 +/- 1.5 mMol x l(-1) in females indicating a partial involvement of anaerobic metabolism, which in some regatta phases could represent a limiting factor for performance.
本研究旨在描述男女顶级奥运帆板运动员的生理特征，并测量实际帆板运动中的能量消耗，尤其关注最具挑战性的条件。14名精英奥运帆板运动员（7名男性和7名女性）自愿参与该研究。每位受试者都进行了一次最大运动强度的自行车测力计测试，以测量最大摄氧量（VO2peak）和通气阈值（Tvent）。此外，还进行了包括体脂百分比在内的人体测量。实际帆板运动中的心肺需求和能量消耗通过一种非常轻便的遥测设备（K2 Cosmed）进行评估，该设备可以测量VO2、VE和HR。男性和女性的VO2peak分别为63.6±2.3 ml·kg⁻¹·min⁻¹（Tvent为最大值的70%）和49.2±4.1（Tvent为最大值的60%）。实际帆板运动期间记录的数据表明，这项体育活动可归类为有氧运动，VO2值高于或非常接近Tvent值（男性和女性分别为最大值的75%和60%）。此外，每次帆船比赛测试结束时测得的男性平均血乳酸值为6±2 mMol·l⁻¹，女性为5±1.5 mMol·l⁻¹，这表明无氧代谢有部分参与，在某些帆船比赛阶段，这可能是表现的限制因素。
