Coen B, Urhausen A, Kindermann W
Institute of Sports- und Preventive Medicine, University of Saarland, Saarbrücken, Germany.
Int J Sports Med. 2003 Aug;24(6):428-32. doi: 10.1055/s-2003-41178.
The aim of the present study was to develop and validate an incremental graded exercise test performed in the rowing boat(coxless pair) in order to give specific performance evaluation data. Furthermore, an attempt was made to transfer these data to training recommendations. Thirty-four female rowers of national and international level performed a 4 x 6 min incremental graded exercise test GXT(boat) in coxless pairs on a lake (6 km, no wind, no waves). The boat velocity on the water (V; measured by a speedometer PACE COACH) was increased continuously from 3.55 m x s-I to 4.03 m x s-1. The individual anaerobic threshold(IAT) was determined by means of the lactate (LA) kinetics during and after exercise. Within 28 days all subjects performed arowing ergometry test GXT(ergo); Gjessing rowing ergometer: 40 watts increments every 3 min) as well as 70 min of constant endurance training in the boat in moderate velocity (ET; n- 10 pairs because of changing weather conditions). Results for V/LAIHR at IAT are: GXT(boat): 3.84+/- 0.10 m x s-1/2.44 +/- 0.66 mmol x 1-1/172 + 11 min(-1); GXT(ergo): 206+/-10 watts/2.53 +0.40 mmol x 1-171 +/- 10 min-' (means+/-SD). The Spearman rank order test showed significant correlations for HR (p < 0.001) and the mean performances of the coxless pairs (p < 0.05). A'5 % lower V during ET lead to a 10% lower HR and a 30% lower LA compared to the values at IAT. In conclusion, both a performance specific evaluation and velocity oriented control of training are possible by means of a 4 x 6 min incremental graded exercise test in coxlesspairs. However, this test on the water requires almost perfect weather conditions. The HR recommendations based on GXT (ergo) were confirmed during GXT(boat).
本研究的目的是开发并验证一种在无舵手双桨赛艇上进行的递增分级运动测试,以便给出具体的性能评估数据。此外,还尝试将这些数据转化为训练建议。34名国家级和国际级水平的女赛艇运动员在湖上(6公里,无风无浪)以无舵手双桨形式进行了一次4×6分钟的递增分级运动测试(GXT(boat))。水上船速(V;由速度计PACE COACH测量)从3.55米/秒持续增加到4.03米/秒。通过运动期间及运动后的乳酸(LA)动力学测定个体无氧阈(IAT)。在28天内,所有受试者都进行了一次赛艇测力计测试(GXT(ergo));Gjessing赛艇测力计:每3分钟增加40瓦)以及70分钟的中等速度持续耐力训练(ET;由于天气变化,n = 10对)。IAT时V/LAIHR的结果为:GXT(boat):3.84±0.10米/秒/2.44±0.66毫摩尔/升/172 + 11次/分钟;GXT(ergo):206±10瓦/2.53 + 0.40毫摩尔/升/171±10次/分钟(平均值±标准差)。Spearman等级顺序检验显示心率(p < 0.001)和无舵手双桨的平均表现(p < 0.05)存在显著相关性。与IAT时的值相比,ET期间V降低5%会导致心率降低10%,LA降低30%。总之,通过无舵手双桨形式的4×6分钟递增分级运动测试,既可以进行特定于性能的评估,也可以进行以速度为导向的训练控制。然而,这种水上测试需要几乎完美的天气条件。基于GXT(ergo)的心率建议在GXT(boat)期间得到了证实。