Effects of 6 weeks of Betaine Supplementation on Exercise Performance and Lipid Profiles after Compound Training
| Autor: | Wang, Yin-Chun, 王尹君 |
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| Rok vydání: | 2019 |
| Druh dokumentu: | 學位論文 ; thesis |
| Popis: | 107 Purpose: To investigate the effects of 6 weeks of betaine supplementation on body composition and total cholesterol (TC), triglyceride (TG), high-density lipoprotein cholesterol (HDL-C), low-density lipoprotein cholesterol (LDL-C) to the compound training of velocity based resistance training and plyometric training. Method: Fourteen collegiate athletes were recruited. The plasma lipid profiles as well as maximal muscular strength of subjects were measured before the intervention. Subjects were divided into betaine or placebo groups (7 in each group) to consume 5 grams of betaine or methylcellulose per day for 6 weeks by a double blind design. Subjects also conducted the compound training twice per week during the supplementation periods. The training program included bench press, half squat, overhead press, sumo deadlift, squat jump and hang pull clean, and resistance traing conducted with velocity based. The load intensity is 70%-95% of the maximum muscle strength, the number of repetitions is up to 8 times or when the speed loss rate up to 20%, need to stop. After 3 weeks and 6 weeks of supplementation, the blood lipid measurement and the maximum muscle strength measurement are performed again. Data were analyzed by a two-way mixed-design analysis of variance to compare the variables between groups and among time points. Result: After 3 weeks of supplementation and training, there were no significant difference on TC and LDL-C as compare to pre-intervention in both groups. However, the TC and LDL-C significantly lower than pre-intervention in betaine and placebo groups after 6 weeks of intervention and in 20m sprint, bench press and sumo deadlift significantly higher than pre-intervention in betaine and placebo groups. But only in betaine group, overhead medicine throwing and half squat higher than pre-intervention. Nevertheless, there were no significantly different between groups. Moreover, there were no significant change in plasma TG, and HDL-C. Conclusion: Conduct the compound training with velocity based resistance training and plyometric training twice per week for six weeks can reduce plasma TC and LDL-C. Daily dosage of 5 grams betaine supplementation during the compound training of would not cause negative effect on lipid profiles. |
| Databáze: | Networked Digital Library of Theses & Dissertations |
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