Effects of creatine supplementation on body composition and anaerobic performance in Thai national wheelchair racing athletes

Name: Jakapong Khaothin

keyword: urine creatinine

Abstract: The purposes of this experimental study was to compare the effects of creatine supplementation on body composition and anaerobic performance of Thai national wheelchair racing athletes. A total of twelve well-trained men wheelchair racing athletes (class T52-T54, age 23-30 years old) were participants in this study. The study protocol was a cross over design, which consisted of 7 days treatment phase followed by 21 days washout period then went on into the second treatment phase. The typical short-term creatine supplementation protocol began with a loading dose of 20 g/day for 5 days. Group I participants (n=8) received 5 g. Cr.H2O powder + 15 g orange solution powder (Creatine) during Phase I of the study and 15 g. orange solution powder (Plcebo) during Phase II, whereas participants in Group II (n=4) received convers treatment in a standard and texture. Meansurements of height, body weight, body mass index, body composition, muscle strength, arm crank Wingate test and 100-m sprint time test a total of 4 separate were made during the 5 week study period. These measurements were performed on day 1 and day 7 in both supplementation periods. Urinary creatinine concentration was monitored daily during the 7 days treatment periods and on day 7, 14, 21 in the 21 days washout period of both phases in the study. The t-test were used for data analysis. Significant level was set at 0.05. Results of thids study showed that creatine supplementation has no significant effect body composition, body weight, total body water, lean body mass and body fat. There were trends toward a greater increased in total body water in creatine compared with pre and post creatine supplementation (p=0.08) and lean body mass in creatine compared with per and post creatine (p=0.08). There were no significant difference in anaerobic performances : peak power, anaerobic power, anaerobic capacity, fatigue rate and fatigue index. There was significant difference in mean power in creatine compared with the placebo group (p=0.04). There were no significant difference in muscle strength, 100 m sprint time, urinary creatinine excretion between creatine and placebo groups. In conclusion, short-term creatine supplementation (20g/d for 5 d) did not lead to a significant change in a body composition, anaerobic performance (arm crank wingate test) except mean power in well-trained Thai national wheelchair racing athletes.

Burapha University. Library.

Address: ชลบุรี (Chonburi)

Email: buulibrary@buu.ac.th

Name: Pratoom Moungmee

Role: Principal advisor

Name: Wilai Anomasiri

Role: Member

Name: Sompol Sanguanrungsirikul

Role: Member

Created: 2006

Issued: 2550-03-20

Modified: 2550-03-20

วิทยานิพนธ์/Thesis

ISBN: 9745029599

tha

DegreeName: Doctor of Philosophy

Level: Doctoral Degree

Descipline: In Exercise and Sport Science

Grantor: Burapha University

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1	title.pdf	455.88 KB	10	2018-10-27 22:28:14
2	chapter1.pdf	262.97 KB	36	2020-04-01 08:10:28
3	chapter2.pdf	2.01 MB	43	2021-03-01 20:36:36
4	chapter3.pdf	354.02 KB	13	2020-04-01 08:10:20
5	chapter4.pdf	616.54 KB	7	2018-05-20 18:42:10
6	chapter5.pdf	547.48 KB	9	2018-05-20 18:42:11
7	bibliography.pdf	489.44 KB	7	2018-05-20 18:42:12
8	appendix.pdf	1.65 MB	9	2018-10-27 22:29:04

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