中国体育科技
中國體育科技
중국체육과기
China Sport Science and Technology
2012年
6期
14~18
,共null页
许弟群 王人卫 李国强 吴卫兵 李合 赵璨 陈千红
許弟群 王人衛 李國彊 吳衛兵 李閤 趙璨 陳韆紅
허제군 왕인위 리국강 오위병 리합 조찬 진천홍
核心温度 出汗率 汗离子 热习服 中长跑 青少年 运动员
覈心溫度 齣汗率 汗離子 熱習服 中長跑 青少年 運動員
핵심온도 출한솔 한리자 열습복 중장포 청소년 운동원
core temperature ; whole-body sweat rate ; sweat ion ; heat acclimation ; adolescentmiddle-long-distance running ; athletes
目的：探讨积极湿热环境习服机体汗流失及其有关离子的变化。方法：8名男性中长跑运动员（年龄16．59±1．38岁，体脂率18．34％±5．77％，最大耗氧量57．12±2．12mL／ks／min）要求习服前1天在33℃、RH80％环境房内热暴露60min，随后连续9天，每天在环境房内热身5min后完成3次、每次15min以40％VQrnBx负荷强度蹬骑功率自行车，次间休息5min。记录每天运动前后心率、核心温度和体重，在积极习服的第l、5、9天，检测汗钠、钾、氯离子浓度，评估离子流失总量。结果：积极习服初未期比较运动终止即刻心率下降10bpm（P〈0．05）、核心温度下降0．28℃（P〈0．05），总出汗率和单位面积出汗率约增加42％（P〈0．05），汗钠、氟离子浓度分别下降31％、32％（P〈0．05）；钾离子浓度及上述3种离子总量未见显著性差异（P〉0．05），3种离子总量流失均先增加后下降。结论：运动员湿热环境积极热适应9天后，机体成功习服，习服增强了机体汗腺功能，汗离子流失总量趋势变化在不同的习服阶段不同。
目的：探討積極濕熱環境習服機體汗流失及其有關離子的變化。方法：8名男性中長跑運動員（年齡16．59±1．38歲，體脂率18．34％±5．77％，最大耗氧量57．12±2．12mL／ks／min）要求習服前1天在33℃、RH80％環境房內熱暴露60min，隨後連續9天，每天在環境房內熱身5min後完成3次、每次15min以40％VQrnBx負荷彊度蹬騎功率自行車，次間休息5min。記錄每天運動前後心率、覈心溫度和體重，在積極習服的第l、5、9天，檢測汗鈉、鉀、氯離子濃度，評估離子流失總量。結果：積極習服初未期比較運動終止即刻心率下降10bpm（P〈0．05）、覈心溫度下降0．28℃（P〈0．05），總齣汗率和單位麵積齣汗率約增加42％（P〈0．05），汗鈉、氟離子濃度分彆下降31％、32％（P〈0．05）；鉀離子濃度及上述3種離子總量未見顯著性差異（P〉0．05），3種離子總量流失均先增加後下降。結論：運動員濕熱環境積極熱適應9天後，機體成功習服，習服增彊瞭機體汗腺功能，汗離子流失總量趨勢變化在不同的習服階段不同。
목적：탐토적겁습열배경습복궤체한류실급기유관리자적변화。방법：8명남성중장포운동원（년령16．59±1．38세，체지솔18．34％±5．77％，최대모양량57．12±2．12mL／ks／min）요구습복전1천재33℃、RH80％배경방내열폭로60min，수후련속9천，매천재배경방내열신5min후완성3차、매차15min이40％VQrnBx부하강도등기공솔자행차，차간휴식5min。기록매천운동전후심솔、핵심온도화체중，재적겁습복적제l、5、9천，검측한납、갑、록리자농도，평고리자류실총량。결과：적겁습복초미기비교운동종지즉각심솔하강10bpm（P〈0．05）、핵심온도하강0．28℃（P〈0．05），총출한솔화단위면적출한솔약증가42％（P〈0．05），한납、불리자농도분별하강31％、32％（P〈0．05）；갑리자농도급상술3충리자총량미견현저성차이（P〉0．05），3충리자총량류실균선증가후하강。결론：운동원습열배경적겁열괄응9천후，궤체성공습복，습복증강료궤체한선공능，한리자류실총량추세변화재불동적습복계단불동。
Objective：The purpose of this study was to investigate the change of sweat rate and sweat ion in humans during active heat acclimation. Methods： 8 male participations （16.59 4 1.38yrs, 18. 34% ±5. 77% body fat, 57. 12± 2. 12mL/kg/min VOzmax） were asked to heat expose in a hot （33 ℃, 80 % relative humidity） environment for 60 minutes on the first day and then in the following 9 consecutive days, they were asked to cycle at 40% of their VOz max workload for 15 minutes every time with three times in 60 minutes and rest for 5 mi- nutes between intervals. Heart rate, core temperature and whole-body sweat rate were meas- ured in the following 9 days. Sweat ion, unit area sweat rate and sweat ion loss were measured or estimated in the day 1,5,9 of active heat acclimation. Results ： The mean heart rate and core temperature were significantly decreased（P〈0.05） by 10 beats/min and 0.28℃, respective- ly, and whole-body sweat rate and unit area sweat rate were increased（P〈0.05） about 42 % following heat acclimation. The mean Na＋ and C1- concentration were significantly decreased （P〈0.05） around 31 and 32 % respectively at the same time. K＋ concentration and was no significant change（P〉0.05）. The trend of the amount of sweat loss of Na~ , CI , K~ were increased in early days then decreased in later days but no significance（P〉0.05）in heat accli- mation. Conclusion ： The current study was successful in conferring heat acclimation. It suggests that heat acclimation improve sweat gland function and sweat ion loss change differ in different stage of heat acclimation.
