我国男子皮艇200m项目能量代谢特征研究

Study on Energy Metabolism of Male Kayak 200 Meters Event

目的:研究男子皮艇200m项目能量代谢特征。方法:以6名优秀男子皮艇运动员为研究对象,在皮划艇测功仪上进行36s测验模拟男子皮艇200 m比赛,测试安静血乳酸和运动后的最高血乳酸,分析安静、运动中和运动后的摄氧量,计算出能量代谢的供能比例,并对测试中的各指标与成绩(36s测验的划行总距离)进行相关分析。结果:男子皮艇200m有氧氧化、糖酵解和磷酸原3种供能系统的比例分别为17.70%±7.70%、53.72%±6.9%和28.59%±5.57%;相关分析表明,糖酵解供能、最高乳酸、前9s平均摄氧量、前9s平均摄氧量-安静摄氧量和成绩正相关,磷酸原供能百分比和成绩负相关。结论:男子皮艇200m项目是以无氧供能为主的项目,其中,糖酵解供能的比例最高;摄氧量和成绩的相关分析表明,起航时宜保持较高的摄氧量。

Objectives：To study the energy system characteristics of 200 m sprint men kayaking.Methods：Six elite men kayakers participated in this research.A 36sall-out kayak ergometer test was used to simulate 200 m men kayka race.Rest plasma lactate,post-paddling plasma peak lactate,rest oxygen consumption,exercise oxygen consumption and post-exercise oxygen consumption were collected to calculate the contribution of energy metabolism.Result：The contribution of the aerobic metabolism,lactic anaerobic system and anaerobic alactic metabolism is 17.70% ±7.70%,53.72% ±6.9%and 28.59% ±5.57%,contribution of the lactic anaerobic system,peak lactate,first 9saverage oxygen consumption,first 9saverage oxygen consumption-rest oxygen consumption correlate with the total paddling distance positively,but anaerobic alactic metabolism contribution correlates with the total paddling distance negtively.Conclusion：200m men kayka race is an anaerobic dominated event,lactic anaerobic system is the major energy supply system.The correlations between oxygen consumption and paddling distance indicate to maitain a higher oxygen consuptionon on the start is beneficial.