Additional Effects of Taurine on the Bene fi ts of BCAA Intake for the Delayed-Onset Muscle Soreness and Muscle Damage Induced by High-Intensity Eccentric Exercise - Advances in Experimental Medicine and Biology - page 166

Chapter 18
Additional Effects of Taurine on the Benefits
of BCAA Intake for the Delayed-Onset
Muscle Soreness and Muscle Damage Induced
by High-Intensity Eccentric Exercise
Song-Gyu Ra , Teruo Miyazaki , Keisuke Ishikura , Hisashi Nagayama ,
Takafumi Suzuki , Seiji Maeda , Masaharu Ito , Yasushi Matsuzaki ,
and Hajime Ohmori
Abstract Taurine (TAU) has a lot of the biological, physiological, and pharmoco-
logical functions including anti-inflammatory and anti-oxidative stress. Although
previous studies have appreciated the effectiveness of branched-chain amino acids
(BCAA) on the delayed-onset muscle soreness (DOMS), consistent finding has not
still convinced. The aim of this study was to examine the additional effect of TAU
with BCAA on the DOMS and muscle damages after eccentric exercise. Thirty-six
untrained male volunteers were equally divided into four groups, and ingested a
combination with 2.0 g TAU (or placebo) and 3.2 g BCAA (or placebo), thrice a
day, 2 weeks prior to and 4 days after elbow flexion eccentric exercise. Following
the period after eccentric exercise, the physiological and blood biochemical markers
for DOMS and muscle damage showed improvement in the combination of TAU
and BCAA supplementation rather than in the single or placebo supplementations.
In conclusion, additional supplement of TAU with BCAA would be a useful way to
attenuate DOMS and muscle damages induced by high-intensity exercise.
S.-G. Ra ( * ) ￿ T. Suzuki ￿ S. Maeda ￿ H. Ohmori
Graduate School of Comprehensive Human Sciences, University of Tsukuba , Tsukuba , Japan
e-mail: [e-mail]
T. Miyazaki
Joint Research Center, Tokyo Medical University Ibaraki Medical Center , Ami , Japan
K. Ishikura
Sports Research and Development Core, University of Tsukuba , Tsukuba , Japan
H. Nagayama
School of Health and Physical Education, University of Tsukuba , Tsukuba , Japan
M. Ito
Livence Co. Inc., Chuo , Tokyo , Japan
Y. Matsuzaki
Division of Gastroenterology and Hepatology, Department of Internal Medicine,
Tokyo Medical University Ibaraki Medical Center , Ami , Japan