广州体育学院学报
廣州體育學院學報
엄주체육학원학보
Journal of Guangzhou Physical Education Institute
2015年
3期
86~89
,共null页
蓝道忠 翁锡全 胡婧 周柏星 黄丽英
藍道忠 翁錫全 鬍婧 週柏星 黃麗英
람도충 옹석전 호청 주백성 황려영
模拟高原环境 自行车驴友 急性骑行 心率 力竭时间
模擬高原環境 自行車驢友 急性騎行 心率 力竭時間
모의고원배경 자행차려우 급성기행 심솔 력갈시간
simulated plateau environment ; bicycle travelers ; acute ride ; heart rate; exhaustive time
目的：探讨模拟高原环境下急性骑行对自行车驴友运动能力的影响.方法：受试对象为7名华南农业大学一年级男性学生,平均年龄19.80±0.83岁,为自行车驴友,没有高原旅行经历.受试者分别在常氧环境和模拟常压低氧环境（氧含量16.8％）进行踏功率自行车运动,强度从50W（50rpm）开始,每3min递增50W至250W,然后要求受试者以最大能力运动至力竭,测试指标包括运动前、每级负荷后即刻和运动后心率、RPE、血乳酸及力竭时间.结果：两种环境下的心率与RPE均随着运动强度的增大而呈上升趋势,在模拟高原环境下从150W至250W以及力竭后心率上升幅度高于常氧,而RPE从150W后至运动结束时也高于常氧环境,但均无统计学差异（P＞0.05）,并且力竭时间非常显著性缩短（P＜0.01）.结论：高原环境下自行车驴友骑行能力有一定下降,提示自行车驴友初入高原时要适当降低骑行强度及作适当的休息.
目的：探討模擬高原環境下急性騎行對自行車驢友運動能力的影響.方法：受試對象為7名華南農業大學一年級男性學生,平均年齡19.80±0.83歲,為自行車驢友,沒有高原旅行經歷.受試者分彆在常氧環境和模擬常壓低氧環境（氧含量16.8％）進行踏功率自行車運動,彊度從50W（50rpm）開始,每3min遞增50W至250W,然後要求受試者以最大能力運動至力竭,測試指標包括運動前、每級負荷後即刻和運動後心率、RPE、血乳痠及力竭時間.結果：兩種環境下的心率與RPE均隨著運動彊度的增大而呈上升趨勢,在模擬高原環境下從150W至250W以及力竭後心率上升幅度高于常氧,而RPE從150W後至運動結束時也高于常氧環境,但均無統計學差異（P＞0.05）,併且力竭時間非常顯著性縮短（P＜0.01）.結論：高原環境下自行車驢友騎行能力有一定下降,提示自行車驢友初入高原時要適噹降低騎行彊度及作適噹的休息.
목적：탐토모의고원배경하급성기행대자행차려우운동능력적영향.방법：수시대상위7명화남농업대학일년급남성학생,평균년령19.80±0.83세,위자행차려우,몰유고원여행경력.수시자분별재상양배경화모의상압저양배경（양함량16.8％）진행답공솔자행차운동,강도종50W（50rpm）개시,매3min체증50W지250W,연후요구수시자이최대능력운동지력갈,측시지표포괄운동전、매급부하후즉각화운동후심솔、RPE、혈유산급력갈시간.결과：량충배경하적심솔여RPE균수착운동강도적증대이정상승추세,재모의고원배경하종150W지250W이급력갈후심솔상승폭도고우상양,이RPE종150W후지운동결속시야고우상양배경,단균무통계학차이（P＞0.05）,병차력갈시간비상현저성축단（P＜0.01）.결론：고원배경하자행차려우기행능력유일정하강,제시자행차려우초입고원시요괄당강저기행강도급작괄당적휴식.
objective： Bicycle travelers acute cycling capacity under simulated plateau environment is investigated. Methods： Seven subjects were freshmen students of south China Agricultural University, average age was 19.80 ± 0.83 years, They are all bicycle travelers and have no plateau travel experience. They had done bicycle with their maximize ability to exhaustion, The step power cycling of subjects is from 50w（50RPM） to 250w, increasing 50W every 3minute in normal environment and simulation plateau environment （ 16.8% oxygen）, Indexes including heart rate, RPE and blood lactic acid before were as- sayed, both after exercise and immediately in per load level. Results： Both heart rate and RPE were increasing with the in- crease of intensity in two kinds of circumstances, from 150w to 250w or exhaustion, Heart rate of the simulated plateau was higher than normal environment, RPE was higher than normal environment from 150w to the end, but all had no significantly difference （ P 〉 0.05 ）, and the exhaust time was significantly shortened （ P 〈 0.01 ）. Conclusions ： The capacity of the bicycle travelers has certain reduced under plateau environment, so the bicycle travelers should reduce the strength and have proper rest when they first go to the plateau.
