Fry R W, Morton A R
Department of Human Movement and Recreation Studies, University of Western Australia, Nedlands.
Med Sci Sports Exerc. 1991 Nov;23(11):1297-301.
Physical and physiological factors accounting for the variability of performance in 500, 1000, 10,000, and 42,000 m flatwater kayaking were investigated using linear regression. Times achieved for each distance were used as the dependent variable for analysis while the independent variables were the parameters derived from the test battery. The 38 kayakists who participated were categorized as either state team members or nonselected paddlers, based on an objective selection policy. Several of the participant subjects were Australian international representatives. All selected paddlers were grouped together and Student's t-tests performed to determine which variables could distinguish between selected and nonselected paddlers. Simple regression was used to determine the strength of association of each parameter with performance time over each race distance, and multiple regression was used to generate equations for the prediction of performance times. Aerobic power and variables related to the aerobic-anaerobic transition were examined using gas analysis during an incremental workload test on a kayak ergometer. A 1-min all-out test also on a kayak ergometer was used to obtain an indication of anaerobic capacity and power. Muscular strength and fatigue were assessed using a simulated kayak stroke on a Cybex isokinetic dynamometer. Physical characteristics were determined using kinanthropometric tests. Aerobic power, anaerobic power and capacity, muscular strength, resistance to muscular fatigue, and measures of body size were significantly greater in more successful kayakists. All of the parameters measured correlated significantly with performance time over at least one of the four race distances.(ABSTRACT TRUNCATED AT 250 WORDS)
采用线性回归方法,研究了导致500米、1000米、10000米和42000米静水皮划艇运动成绩差异的身体和生理因素。每个距离的完成时间用作分析的因变量,而自变量是从测试组得出的参数。根据客观选拔政策,将参与研究的38名皮划艇运动员分为国家队队员或未入选划手。其中一些参与受试者是澳大利亚国际代表。所有入选的划手被归为一组,并进行学生t检验,以确定哪些变量可以区分入选和未入选的划手。简单回归用于确定每个参数与每个比赛距离的成绩时间之间的关联强度,多元回归用于生成预测成绩时间的方程。在皮划艇测力计上进行递增负荷测试期间,使用气体分析来检查有氧能力以及与有氧-无氧转换相关的变量。同样在皮划艇测力计上进行的1分钟全力测试用于获取无氧能力和功率的指标。使用Cybex等动测力计上的模拟皮划艇划桨动作来评估肌肉力量和疲劳程度。使用人体测量学测试来确定身体特征。在更成功的皮划艇运动员中,有氧能力、无氧能力和功率、肌肉力量、肌肉疲劳抵抗力以及身体尺寸指标明显更高。在四个比赛距离中的至少一个距离上,所有测量的参数都与成绩时间显著相关。(摘要截选至250字)