https://scholars.lib.ntu.edu.tw/handle/123456789/437937
標題: | Effects of Gender Difference and Caffeine Supplementation on Anaerobic Muscle Performance | 作者: | Chen, H. Y. Wang, H. S. Tung, K. Chao, H. H. |
關鍵字: | anaerobic power; ergogenic AIDS; exercise performance; fatigue index | 公開日期: | 2015 | 卷: | 36 | 期: | 12 | 起(迄)頁: | 974 | 來源出版物: | International journal of sports medicine | 摘要: | The primary purpose of this study was to investigate the effects of gender difference and caffeine supplementation to maximal voluntary isometric contractions (MVIC) and submaximal voluntary isometric contractions (T lim). 10 male (age: 20.10 ± 2.18 years, BMI: 22.23±1.96 kg/m2) and 10 female (age: 19.90±0.99 years, BMI: 21.76±2.65 kg/m2) elite collegiate athletes were recruited. Subjects ingested caffeine (6 mg/kg) or a placebo in a randomized, double-blind, placebo-control, and counter-balanced fashion. MVIC and T lim were measured after supplementations. T lim result was calculated based on the time to exhaustion of isometric contraction with 50% MVIC. Fatigue index (FI%) referred to the MVIC tested 20 s after the cessation of T lim test, and was indexed by the percentage of MVIC decline. No significant interaction effect was found between the gender factor and the supplementation factor for all dependent variables. Compared to the placebo, caffeine supplementation significantly increased MVIC (5.9%) and T lim (15.5%) (p<0.05) whereas it had no significant effect on FI%. This study demonstrates that caffeine supplementation at a 6 mg/kg dosage facilitates performances in MVIC and T lim. The ergogenic effect of caffeine on muscle power and muscle endurance does not show a gender bias. ? Georg Thieme Verlag KG Stuttgart, New York. |
URI: | https://scholars.lib.ntu.edu.tw/handle/123456789/437937 | DOI: | 10.1055/s-0035-1550048 | SDG/關鍵字: | biological marker; caffeine; beverage; blood; controlled study; double blind procedure; drug effects; female; human; male; muscle fatigue; muscle isometric contraction; randomized controlled trial; sex difference; skeletal muscle; young adult; Beverages; Biomarkers; Caffeine; Double-Blind Method; Female; Humans; Isometric Contraction; Male; Muscle Fatigue; Muscle, Skeletal; Sex Factors; Young Adult |
顯示於: | 體育室 |
在 IR 系統中的文件,除了特別指名其著作權條款之外,均受到著作權保護,並且保留所有的權利。