二种方法对男子轮椅竞速T54级比赛项目能量供应计算结果的比较  

The influence of two calculation methods on relative energy contribution of men’s wheelchair racing T54 events

作　　者：章凌凌[1,2] 黄鹏 吴雪萍 金璐[4] 李啸天 黎涌明 ZHANG Ling-ling;HUANG Peng;WU Xue-ping;JIN Lu;LI Xiao-tian;LI Yong-ming(School of Physical Education and Sport Training,Shanghai University of Sport,Shanghai 200438;Department of Physical Education,Shanghai University of Finance and Economics,Shanghai 200433;Shanghai Disabled Persons’Sport Training Center,Shanghai 200083;Xuhui Experimental School Affiliated to Fudan University,Shanghai 200030;Central South University,Changsha 410083,China)

机构地区：[1]上海体育学院体育教育训练学院,上海200438 [2]上海财经大学体育教学部,上海200433 [3]上海市残疾人训练中心,上海200083 [4]复旦大学附属徐汇实验学校,上海200030 [5]中南大学体育教研部,湖南长沙410083

出　　处：《中国应用生理学杂志》2020年第1期27-32,共6页Chinese Journal of Applied Physiology

基　　金：国家自然科学基金项目(31500963);上海市体育科技“重点备战攻关”项目(18J001);上海市人类运动能力开发与保障重点实验室资助项目(上海体育学院)(11DZ2261100)。

摘　　要：目的:比较不同计算方法对男子轮椅竞速T54级比赛项目能量供应产生的影响。方法:招募高水平轮椅竞速运动员10人(年龄(22.9±5.2)岁、坐高(90.9±3.2)cm、体重(59.3±8.3)kg)自愿参加本研究。所有受试者完成1次递增负荷测试和4次模拟比赛测试(400 m、800 m、1500 m、5000 m)。测试全程使用气体代谢仪、心率带和血乳酸分析仪对每次呼吸的VO 2、心率和血乳酸变化进行分析,运用MAOD和PCr-La-O 2计算方法对受试者的能量供应进行计算。结果:MAOD计算得出的无氧供能和总能量供应量低于PCr-La-O 2方法(特别是在400 m项目中,两种方法计算的总供能(50.8±12.7)KJ vs(65.2±13.5)KJ、无氧供能(31.0±9.0)KJ vs(45.4±11.4)KJ,P<0.05),造成MAOD计算得出的有氧供能比例普遍高于PCr-La-O 2方法(特别是在400 m项目中,有氧39.0%±1.2%vs 30.4%±8.4%,P<0.05)。结论:二种方法计算得出的有氧供能比例有显著差异,MAOD计算结果高于PCr-La-O 2的计算结果。建议在进行长期科研攻关的纵向研究中(例如4年为周期的奥运会)采用同一种计算方法进行诊断和监控,以避免计算方法的不同造成结果上的差异,进而影响教练员训练计划的制定和实施效果。Objective:To study whether the two methods of energy calculation affects the value of relative energy contribution in men’s T54 wheelchair racing events.Methods:Ten men’s T54 wheelchair racers(age(22.9±5.2)yrs、sitting height(90.9±3.2)cm、body mass(59.3±8.3)kg)participate in 1 incremental test and 4 time trials(400 m、800 m、1500 m、5000 m).A portable gas analyzer,polar heart rate belt and a blood lactate analyzer were used to measure VO 2 at every breath,HR and blood lactate changes.The energetic contribution was measured with phosphocreatine-lactate-oxygen(PCr-La-O 2)and maximal accumulated oxygen deficit(MAOD)methods.Results:The anaerobic and total energy portions from MAOD were lower than those from PCr-La-O 2(especially in 400 m:W TOT(50.8±12.7)KJ vs(65.2±13.5)KJ、W ANA(31.0±9.0)KJ vs(45.4±11.4)KJ,P<0.05),resulting in W AER%calculated by MAOD was generally higher than PCr-La-O 2 method(especially in 400 m:W AER%39.0%±1.2%vs 30.4%±8.4%,P<0.05).Conclusion:The study proves that the two-calculation method causes W AER%difference.MAOD method does lead to an overestimate of W AER%.Recommend to use the same calculation method for diagnosis and monitoring in the longitudinal study of long-term scientific research(such as the 4-year Olympic Games),to avoiding the difference in results caused by different calculation methods,which will further influence the development of coaches’training plans and training implementation effect.

关 键 词：轮椅竞速 能量供应 计算方法 高估 

分 类 号：G846[文化科学—体育训练]