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藏族摔跤运动员身体机能及运动后恢复能力研究

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目的:探讨藏族摔跤运动员身体机能及运动后恢复能力.方法:在平原对来自西藏自治区体育运动技术学校的藏族摔跤运动员进行生理机能测试,以普通藏族大学生作为对照.测试内容包括身体形态、心肺功能;在常氧和模拟海拔高度(2 700m和3 800m)检测安静及运动后血乳酸和心率的恢复情况.结果:与普通藏族比较,藏族摔跤运动员身体形态优势主要体现在前臂长、肌肉含量、身体围度、体表面积、克托莱指数方面(均P<0.05);心肺功能优势表现为最大摄氧量和肺功能的增高(均P<0.05);男运动员体脂肪率与第一秒用力呼气容积(FEV1)(r=-0.39)、最大呼气中段流量(MMF)(r=-0.41)呈负相关,肌肉量与用力肺活量(FVC)(r=0.38)呈正相关(均P<0.05);女运动员体脂肪率与FEV1(r=-0.35)呈负相关,肌肉量和BMI均与FEV1(r=0.66,r=0.59)、呼气峰流速(PEF)(r=0.75,r=0.58)呈正相关(均P<0.05).藏族摔跤运动员身体恢复能力主要表现在:运动员心率恢复速率与乳酸清除率显著快于普通藏族.在常氧状态下,摔跤运动员安静及运动后心率低于普通藏族.运动后血乳酸、乳酸清除率及心率恢复率显著增高(均P<0.05).在缺氧状态下,摔跤运动员在模拟海拔2 700 m、3 800 m时运动后血乳酸、心率迅速升高,且随海拔增高而增加(均P<0.05);而乳酸清除率及心率恢复率,均随海拔升高而降低(均P<0.05).在常氧及海拔2700m时,血乳酸峰值均出现在运动后3 min,而海拔3800m时,血乳酸峰值出现在运动后即刻.缺氧导致乳酸累积,提前了血乳酸到达峰值的时间.结论:藏族摔跤运动员心肺功能优势表现为最大摄氧量和肺功能的增高,其心肺功能与身体形态密切相关,表现为肺功能受BMI、体脂率、肌肉量因素影响显著.摔跤运动员身体恢复能力优势表现为:常氧状态下运动后乳酸清除率和心率恢复率增加,缺氧状态下血乳酸及心率随海拔增高而迅速增加.且藏族摔跤运动员运动后恢复能力与海拔高度有关.
A Study on Physical Functions and Post-Exercise Recovery Ability of Tibetan Wrestlers
Objective:The purpose of this study is to investigate the physical functions and post-exercise recov-ery ability of Tibetan wrestlers.Methods:Physiological function tests were conducted on Tibetan wrestlers from the Tibet Autonomous Region Sports School in the plains,with ordinary Tibetans as the control group.The tests included body morphology and cardiopulmonary function.Additionally,under normoxia and simulated altitudes(2 700 m and 3 800 m),the recovery of blood lactate and heart rate after exercise were measured.Results:Com-pared to ordinary Tibetans,Tibetan wrestlers exhibit significant advantages in various aspects of body morpholo-gy,including forearm length,muscle mass,body girth,surface area,and the Cotes index(all P<0.05).They also demonstrate superior cardiopulmonary function,reflected in increased maximal oxygen uptake and lung function(both P<0.05).Among male athletes,body fat percentage correlates negatively with FEV1(r=-0.39)and MMF(r=-0.41),while muscle mass correlates positively with FVC(r=0.38)(all P<0.05).Among female athletes,body fat percentage correlates negatively with FEV1(r=-0.35),whereas muscle mass and BMI correlate positively with FEV1(r=0.66,r=0.59)and PEF(r=0.75,r=0.58)(all P<0.05).Tibetan wrestlers demonstrate superior physi-cal recovery abilities,with faster heart rate recovery and lactate clearance rates compared to ordinary Tibetans.Under normoxic conditions,wrestlers exhibit lower resting and post-exercise heart rates than ordinary Tibetans.Post-exercise blood lactate levels,lactate clearance rates,and heart rate recovery rates are significantly higher(all P<0.05).Under hypoxic conditions simulated at altitudes of 2 700 m and 3 800 m,wrestlers experience rapid increases in post-exercise blood lactate and heart rate,which escalate with altitude(all P<0.05).However,lac-tate clearance rates and heart rate recovery rates decrease with increasing altitude(all P<0.05).At normoxic con-ditions and 2 700 m altitude,peak blood lactate levels occur 3 minutes post-exercise.At 3 800 m altitude,peak blood lactate levels occur immediately post-exercise.Hypoxia accelerates lactate accumulation,advancing the time to peak blood lactate levels.Conclusion:The cardiopulmonary function advantages of Tibetan wrestlers are manifested in increased maximum oxygen uptake and lung function.Their cardiopulmonary function is closely re-lated to body morphology,with lung function significantly influenced by factors such as BMI,body fat percent-age,and muscle mass.The advantage in physical recovery ability of wrestlers is demonstrated by increased lac-tate clearance rate and heart rate recovery rate after exercise under normoxic conditions.In hypoxic conditions,blood lactate and heart rate rapidly increase with altitude,and the recovery ability of Tibetan wrestlers after exer-cise is related to altitude.

Tibetanwrestling athletesbody shapecardiopulmonary functionpost-exercise recovery

赵昕、程红、李小灿、彭瑶函、陈婷

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西藏民族大学附属医院 陕西咸阳 712082

西藏民族大学高原体育与健康研究中心 陕西咸阳 712082

藏族 摔跤运动员 身体形态 心肺功能 运动后恢复能力

国家自然科学基金项目西藏自治区自然科学基金项目

82060422XZ202401ZR0062

2024

高原科学研究

高原科学研究

ISSN:
年,卷(期):2024.8(2)
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