摘要
为了研究大强度训练期优秀女运动员体内必需微量元素铁(Fe)、锌(Zn)、铜(Cu)、锰(Mn)动态变化规律,探讨用无创性头发取样代替血样采集对运动员实施微量元素运动营养监控的可行性,以12名南部优秀女子排球运动员为研究对象,受试者分别于夏训第1天,第7天和第40天采取血浆,并同时于第1天和第40天采集头发,用原子吸收分光光度法测定头发和血浆中铁、锌、铜、锰含量.结果显示:(1)夏训结束时,血浆Fe、Cu含量和Cu/Zn比值显著性降低(P<0.05～0.001),血浆Mn显著性升高(P<0.001),血浆Zn无差异.(2)血浆中各元素含量在整个夏训期间的变化速率不同.其中血浆Fe在夏训第1周末即呈显著性下降(P<0.001),显示出快速变化过程;而血浆Cu、血浆Cu/Zn比值的降低以及血浆Mn的升高表现为逐渐累积的缓慢变化过程,夏训结束才出现显著性差异(P<0.05～0.001).(3)夏训结束时,头发Fe、头发Cu含量呈显著性降低(P<0.05～0.001),头发Cu/Zn比值及头发Zn含量无差异.结论:(1)大强度训练期间,可以考虑用发样取代血样进行微量元素铁、锌和铜的营养监控.(2)大强度训练开始后,要及时对运动员进行微量元素铁和铜的补充.
In order to investigate the in vivo varying rule of the necessary trace elements, such as Fe, Zn, Cu and Mn of elitist sportswomen after under intensive training, as well as discuss the feasibility of painless hair sampling as the replacement of blood sampling method in monitoring the trace element nutrition ingestion of sportswomen, the blood sampling of 12 elitist sportswomen of the woman Volleyball Team of Nanjing Military District was performed on the first, seventh and fortieth summer training days, and the hair sampling was carried out on the first and fortieth training day also The contents of Fe, Zn, Cu and Mn of both hair and blood samples were measured using an atomic absorption spectrometer. The results show： （ 1 ） Fe, Cu contents and Cu/Zn ratio of plasma reduce obviously after summer training （P〈0.05-0.001） , whereas in plasma the Mn content increases greatly （P〈0.001） , and the Zn content keeps constant. （2） In plasma, the content of every trace element varies at different ratios in whole summer training period. Plasma Fe decreases observably alter the first week summer training （ P〈0.001 ）, showing a rapid process. Differently, the increase of plasma Cu, Cu/Zn ratio and decrease of plasma Mn present a gradually accumulating process, except an obvious dttterence （ P〈0.05-0.001 ） after the finishing of summer training. （3） After the summer training, hair Fe and Cu contents display a noticeable declining （ P〈0.05- 0.001 ） , as well as the hair Cu/Zn ratio and hair Zn content remain unchanged. All these imply it is feasible to replace the conventional blood sampling with hair sampling method in monitoring of trace elements Fe, Zn and Cu during intensive training period. Additionally, supplement of trace elements Fe and Cu is necessary at the beginning of intensive training period.
出处
《四川体育科学》
2005年第3期31-33,共3页
Sichuan Sports Science
关键词
优秀女排运动员
大强度训练
微量元素
动态变化
Elitist sportswomen
Intensive training
Vivo trace elements
Dynamic Change
