体育科学
體育科學
체육과학
China Sport Science
2010年
8期
85~91
,共null页
郜卫峰 莫少强 陈征 林家仕
郜衛峰 莫少彊 陳徵 林傢仕
고위봉 막소강 진정 림가사
无氧阈 最大乳酸稳态 4mmol/L乳酸阈 个体乳酸阈 功率 赛艇 运动员
無氧閾 最大乳痠穩態 4mmol/L乳痠閾 箇體乳痠閾 功率 賽艇 運動員
무양역 최대유산은태 4mmol/L유산역 개체유산역 공솔 새정 운동원
anaerobic threshold; maximal lactate steady state; 4 mmol/L threshold; individual anaerobic threshold; power; rowing; rowers
目的：结合赛艇专项运动特点,利用Concept Ⅱ赛艇测功仪对最大乳酸稳态（MLSS）测试进行改进,并根据MLSS测试判定赛艇运动员以4mmol/L乳酸阈（AT4）和个体乳酸阈（IAT）指代无氧阈的有效性。方法：10名男子公开级赛艇运动员在Concept Ⅱ赛艇测功仪上进行1次递增负荷测试和2～4次30min恒定负荷测试,在相应的负荷间歇测定血乳酸。通过递增负荷测试获取AT4和IAT,并在恒定负荷测试中分别以AT4和IAT作为初试负荷,以2.5%IAT作为最小调整负荷,以运动中第10～30min乳酸浓度上升〈1mmol/L作为判定标准获取MLSS。结果：1）AT4和MLSS发生时功率分别为342.4±18.8W vs 312.5±16.0W,二者差异非常显著（P〈0.01）且相关较弱（r=0.607,P〉0.05）;AT4高估MLSS功率达9.7%,二功率相对差异范围为0%～15.4%;仅2人以AT4强度完成30min恒定负荷测试,其中1人达到MLSS。2）IAT功率为314.4±19.9W,略高于MLSS功率（P〉0.05）,二者相关非常显著（r=0.885,P〈0.01）;IAT比MLSS功率高0.6%,相对差异范围为-4.8%～5.3%;所有受试者均能以IAT强度完成30min恒定负荷测试,其中7人以稳态乳酸完成,且有5人在IAT强度达到MLSS。结论：结合赛艇运动员专项特征的MLSS测试方案能提高测试的简便性和准确性;AT4显著地高估了赛艇运动员的无氧阈水平,而IAT可作为赛艇运动员无氧阈训练的有效负荷区间。
目的：結閤賽艇專項運動特點,利用Concept Ⅱ賽艇測功儀對最大乳痠穩態（MLSS）測試進行改進,併根據MLSS測試判定賽艇運動員以4mmol/L乳痠閾（AT4）和箇體乳痠閾（IAT）指代無氧閾的有效性。方法：10名男子公開級賽艇運動員在Concept Ⅱ賽艇測功儀上進行1次遞增負荷測試和2～4次30min恆定負荷測試,在相應的負荷間歇測定血乳痠。通過遞增負荷測試穫取AT4和IAT,併在恆定負荷測試中分彆以AT4和IAT作為初試負荷,以2.5%IAT作為最小調整負荷,以運動中第10～30min乳痠濃度上升〈1mmol/L作為判定標準穫取MLSS。結果：1）AT4和MLSS髮生時功率分彆為342.4±18.8W vs 312.5±16.0W,二者差異非常顯著（P〈0.01）且相關較弱（r=0.607,P〉0.05）;AT4高估MLSS功率達9.7%,二功率相對差異範圍為0%～15.4%;僅2人以AT4彊度完成30min恆定負荷測試,其中1人達到MLSS。2）IAT功率為314.4±19.9W,略高于MLSS功率（P〉0.05）,二者相關非常顯著（r=0.885,P〈0.01）;IAT比MLSS功率高0.6%,相對差異範圍為-4.8%～5.3%;所有受試者均能以IAT彊度完成30min恆定負荷測試,其中7人以穩態乳痠完成,且有5人在IAT彊度達到MLSS。結論：結閤賽艇運動員專項特徵的MLSS測試方案能提高測試的簡便性和準確性;AT4顯著地高估瞭賽艇運動員的無氧閾水平,而IAT可作為賽艇運動員無氧閾訓練的有效負荷區間。
목적：결합새정전항운동특점,이용Concept Ⅱ새정측공의대최대유산은태（MLSS）측시진행개진,병근거MLSS측시판정새정운동원이4mmol/L유산역（AT4）화개체유산역（IAT）지대무양역적유효성。방법：10명남자공개급새정운동원재Concept Ⅱ새정측공의상진행1차체증부하측시화2～4차30min항정부하측시,재상응적부하간헐측정혈유산。통과체증부하측시획취AT4화IAT,병재항정부하측시중분별이AT4화IAT작위초시부하,이2.5%IAT작위최소조정부하,이운동중제10～30min유산농도상승〈1mmol/L작위판정표준획취MLSS。결과：1）AT4화MLSS발생시공솔분별위342.4±18.8W vs 312.5±16.0W,이자차이비상현저（P〈0.01）차상관교약（r=0.607,P〉0.05）;AT4고고MLSS공솔체9.7%,이공솔상대차이범위위0%～15.4%;부2인이AT4강도완성30min항정부하측시,기중1인체도MLSS。2）IAT공솔위314.4±19.9W,략고우MLSS공솔（P〉0.05）,이자상관비상현저（r=0.885,P〈0.01）;IAT비MLSS공솔고0.6%,상대차이범위위-4.8%～5.3%;소유수시자균능이IAT강도완성30min항정부하측시,기중7인이은태유산완성,차유5인재IAT강도체도MLSS。결론：결합새정운동원전항특정적MLSS측시방안능제고측시적간편성화준학성;AT4현저지고고료새정운동원적무양역수평,이IAT가작위새정운동원무양역훈련적유효부하구간。
Combining with the specific character of rowing,using the maximal lactate steady state （MLSS） to verify the validity of 4mmol/L threshold （AT4） and individual anaerobic threshold （IAT） that presumably indicate the workload corresponding to anaerobic threshold （AT）.Methods：Ten male open-class rowers performed an incremental load test to determine AT4,IAT,and two to four constant load tests that last 30min to determine MLSS on ConceptⅡ rowing ergometer.The first constant load test was respectively conducted at AT or IAT,and the minimal adjusted load was 2.5%IAT,the acceptance criteria for MLSS was the highest blood lactate concentration by no more than 1.0mmol/L within the last 20min of the test.Results：1） The load at AT4 was significantly higher than the load at MLSS （342.4±18.8W vs 312.5±16.0 W,P0.01）,weak correlation between them was found （r=0.607,P0.05）,the AT4 overestimated the MLSS by 9.7%,individual differences reached 0%~15.4%;only two participants could finish the 30 min constant load test with load at AT4,and one of them reached MLSS.2） The load at IAT was slightly higher than the load at MLSS （314.4±19.9 W vs 312.5±16.0 W,P0.05）,there was a strong correlation between them （r=0.885,P0.01）,the IAT was slightly higher than MLSS by 0.6%,the individual differences were -4.8%~5.3%;all participants finished the constant load test with load at IAT,seven finished the 30 min test with lactate steady state,moreover,five of the seven reached MLSS.Conclusions：The modified MLSS test design can improve the efficiency of the test,and the IAT can be considered as a reliable range of AT training,but AT4 overestimates the MLSS significantly.
