Mendeley
TY  _  JOUR
ID  -  2021072019831
TI  -  Effect of beta-alanine supplementation on  carnosine amount and muscle strength of the upper and lower extremities of bodybuilding athletes
JO  -  Journal of Sports Physiology and Athletic Conditioning
JA  -  ES
LA  -  en
SN  -  2783-3038
AU  -  Abbasi Amir
AU  -  Riyahi Malayeri Shahin
AU  -  Mousavi Sadati Seyed Kazem
AD  -  Department of Physical Education and Sport Sciences, East Tehran Branch, Islamic Azad University, Tehran, Iran.
AD  -   East Tehran Branch, Islamic Azad University, Tehran, Iran. 
AD  -  Department of Physical Education and Sport Sciences, East Tehran Branch, Islamic Azad University, Tehran, Iran
AD  -  Department of Physical Education and Sport Sciences, East Tehran Branch, Islamic Azad University, Tehran, Iran.
Y1  -  2021
PY  -  2021
VL  -  1
IS  -  1
SP  -  11
EP  -  20
KW  -  beta-alanine
KW  -   bodybuilding
KW  -   carnosine
KW  -   muscle strength
DO  -  
N2  -  Background: The purpose of the present study is to investigate the effect of one session of exhaustive activity with supplementation of beta-alanine on the level of carnosine and muscle strength of upper and lower extremities of bodybuilding athletes.
Materials and Methods: Twenty bodybuilders were randomly divided into two equal groups of 10 who were taking supplemental beta-alanine and placebo. The experimental group consumed beta-alanine for 21 days and the placebo group received dextrose. The level of carnosine and muscle strength of the upper and lower extremities were measured before and after supplementation. Blood sampling was done before and after supplementation after session of exhaustive workout. Paired t-test and ANCOVA were used for data analysis using SPSS 21 software at a significant level (p <0.05).
Results: The results of paired t-test showed that in all three variables of lactate, carnosine and growth hormone only in the beta-alanine group, a significant change was observed between pre-test and post-test (P <0.05). And amount of these variables in the post-test showed a significant difference compared to the pre-test. Also, ANCOVA test results indicated that there was a significant difference between the two groups of beta-alanine and placebo in all three variables    (P <0.05).
Conclusion: Beta-alanine supplementation with an exhaustive exercise session increases the level of carnosine in blood and hence increases the fatigue tolerance of bodybuilding athletes and ultimately improves the muscle strength of the upper and lower extremities of athletes and bodybuilders. Therefore, bodybuilders can use this supplement to improve their performance.

UR  - rimag.ir/fa/Article/19831
L1  - rimag.ir/fa/Article/Download/19831
ER  -  
