Effect of Glutamine Supplement Administration on the Reduction of Muscular Fatigue Post-Eccentric Exercise

Abstract

Eccentric activity can cause pain due to muscle damage and fatigue. Tired and damaged muscular state will degrade athletes' performance during a competition. Glutamine supplements are known to maintain plasma protein levels and can also improve muscle weakness due to inflammation that occurs after eccentric activity. The purpose of this study was to prove the effect of glutamine supplementation on the reduction of muscle fatigue after eccentric activity based on muscle strength and joint ROM. The subjects of this study were students of PJKR, IKIP Budi Utomo, who were randomly divided into 2 groups, the control group (K1) and treatment group (K2), each consisting of 22 respondents. The design of this research is randomized grsoup pre-test and post-test design. The eccentric activity performed was drop jumps on the bench with a height of 0.5 meters. Glutamine was administered orally after eccentric activity with a dose of 0.4 grams/kg BW in 450 ml water mineral 3 times (3 days). Measurement of Leg muscle strength was performed using Back and Leg Dynamometer by pulling with all the strength using leg muscles, whereas ROM measurements were measured using a goniometer performed on the knee joint in a passive way. The result of measurement obtained the mean of muscle strength of control group 63.7 ± 17.0 kg and treatment group 81.1 ± 17.0 kg at 72 hours. While result of ROM measurement obtained the mean of control group 124.3 ± 3.2 degrees and treatment group 131.7 ± 4.1 degrees at 72 hours. The analysis showed that glutamine administration in treatment group after eccentric activity increased leg muscle strength with p=0.000, and also increased knee joint ROM with p=0.000 at 72 hours after eccentric activity. In conclusion, glutamine administered with a dose of 0.4 gram/kg BW/day can increase leg muscle strength and knee joint ROM at 72 hours after eccentric activity.

Glutamine Accelerates Post-Exercise Recovery of Arms Power, Leg Power, and Smash Velocity at 48 Hours for Non-Elite Badminton Athletes

“…The Placebo (Plac) group was given 250 mineral water without glutamine at 1 hour, 24 hours, and 48 hours after the jumping smashes. In comparison, the glutamine (Glut) group was given 250 mineral water filled with glutamine at the dose of 0.4 gram/KgBW 1 hour, 24 hours, and 48 hours after the jumping smashes (Rusdiawan and Taufikkurrachman, 2020). While participating in this research, all subjects were ensured not to consume supplements other than those provided by the research team.…”

Acceleration of Sports Recovery with Glutamine Supplementation in Vertical Jump and Badminton Smash Velocity

“…The movement provided is to do a jumping smash for 20 repetitions, ten sets with 30-second intervals. A 0.4 gram/kg BW glutamine dose was given 1 hour after jumping smash activity, 24 hours, and 48 hours after jumping smash activity (3 times administration) [18].…”