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.