Effect of Branched-Chain Amino Acid Supplementation on O2 Uptake Kinetics and Time to Exhaustion in Trained Women

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SAREMI ABBAS; Khajavi Daryoosh; ABEDI FATEMEH

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Journal: Complementary Medicine Journal Year:2019 | Volume:9 | Issue:3 (32) Page(s): 3780-3791

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Information Journal Paper

Title

Effect of Branched-Chain Amino Acid Supplementation on O2 Uptake Kinetics and Time to Exhaustion in Trained Women

Author(s)

SAREMI ABBAS | Khajavi Daryoosh | ABEDI FATEMEH | Issue Writer Certificate

Keywords

Branched-chain amino acid

Women

O2 uptake kinetics

Endurance capacity

Abstract

Objective: The aim of this study was to investigate the effect of Branched-chain amino acid (BCAA) supplementation on O2 uptake kinetics and the time to exhaustion in trained Women. Methods: In this quasi-experimental study with pre-test/post-test design, participants were 20 trained Women (Mean± SD age, 21. 3± 0. 5 years). They were randomly assigned into two groups of BCAA (received 45mg/kg/d BCAA for 7 days; n=10) and isocaloric placebo (received 2g/d microcrystalline cellulose for 7 days; n=10). On day 7, subjects performed the incremental exercise test on a cycle ergometer until exhaustion in order to measure maximal oxygen uptake (Vo2max). Respiratory gas exchange was measured using breath-by-breath analysis in order to evaluate O2 uptake kinetics. Data were analyzed using one-way ANOVA with repeated measures at the significance level of P<0. 05. Results: BCAA supplementation significantly increased Vo2max (P<0. 04, 1. 5± 0. 8 vs 1. 9± 0. 5 min) and the time to exhaustion (P<0. 02, 13. 5± 3. 1 vs. 16. 6± 2. 1 min) during the exercise test. The O2 uptake kinetics such as oxygen deficit (P<0. 01), time constant 1(P<0. 02) and time constant 2 (P<0. 01) in the BCAA group were faster than those in the placebo group. Conclusion: BCAA supplementation (45mg/kg/d) can speed up the O2 uptake kinetics and may be effective in increasing the Endurance capacity.

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APA: Copy

SAREMI, ABBAS, Khajavi, Daryoosh, & ABEDI, FATEMEH. (2019). Effect of Branched-Chain Amino Acid Supplementation on O2 Uptake Kinetics and Time to Exhaustion in Trained Women. COMPLEMENTARY MEDICINE JOURNAL OF FACULTY OF NURSING & MIDWIFERY, 9(3 (32) ), 3780-3791. SID. https://sid.ir/paper/954420/en

Vancouver: Copy

SAREMI ABBAS, Khajavi Daryoosh, ABEDI FATEMEH. Effect of Branched-Chain Amino Acid Supplementation on O2 Uptake Kinetics and Time to Exhaustion in Trained Women. COMPLEMENTARY MEDICINE JOURNAL OF FACULTY OF NURSING & MIDWIFERY[Internet]. 2019;9(3 (32) ):3780-3791. Available from: https://sid.ir/paper/954420/en

IEEE: Copy

ABBAS SAREMI, Daryoosh Khajavi, and FATEMEH ABEDI, “Effect of Branched-Chain Amino Acid Supplementation on O2 Uptake Kinetics and Time to Exhaustion in Trained Women,” COMPLEMENTARY MEDICINE JOURNAL OF FACULTY OF NURSING & MIDWIFERY, vol. 9, no. 3 (32) , pp. 3780–3791, 2019, [Online]. Available: https://sid.ir/paper/954420/en

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