The Influence of Different Nutrient Intake on Rapid Endurance

• Main Authors: Tai-Ping Chen, 陳太平
• Other Authors: Jia-Tzer Jang
• Format: Others
• Language: zh-TW
• Published: 2010
• Online Access: http://ndltd.ncl.edu.tw/handle/59564583881394396390

碩士 === 國立體育大學 === 教練研究所 === 98 === The purpose of this study was to investigate the influence of different nutrient supplements on blood metabolic chemicals, post-exercise heart rates and sprint speed in young athletes after sprint. The main research objects were 10 regular training short track male senior high school athletes, Five nutrient supplements, Creatine (Cre), Magnesium (Mag), Eleutherococcus senticosus (Es), Cre+Mag and placebo, were provided in a counter-balanced pattern to all subjects, in which subjects successively intake assigned different nutrients in five days and followed by one day interval. Heart rate (HR), blood lactate (La), blood ammonia (NH3) and sprint speed(S) of subjects were collected before and immediately after two 150-meter sprints as study parameters . Results: there were no significant differences in sprint speeds among five nutrient supplements. However, Es significantly reduced heart rates immediately and five minutes after sprints. Blood lactate accumulation after Es intake was significantly (p <0.05) lower than the others. Mag supplement produced the highest lactic acid. Cre and Es supplements produced lower blood NH3max than placebo, and students who took Mag and Cre+Mag significantly increased their blood NH3max. Conclusion: The intake of different nutrient supplements had no significant differences in average speed. Speed dose not change.In the 2x150m test, intake of Cre increased the speed most； intake of Mag had highest heart rate and Lamax ; intake of Cre + Mag had the highest NH3max after exercise.The most important, intake of Es had significant differences with others in average heart rate and Lamax, NH3max. It shows Es can enhance cardiorespiratory endurance, increase oxygen consumption (VO2), lower the Lamax and NH3max during exercise and delay the occurrence of exercise fatigue. It also improve the metabolism of Lamax and NH3max in recovery period and help to remove metabolic products of fatigue.