Effect of oral glutamine on whole body carbohydrate storage during recovery from exhaustive exercise

Bowtell, Joanna L.; Gelly, K.; Jackman, Michelle; Patel, Ayyub; Simeoni, Mariadelina; Rennie, Michael J.

doi:10.1152/jappl.1999.86.6.1770

Cited by 75 publications

(60 citation statements)

References 28 publications

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“…Glutamine supplementation managed to prevent a decrease of maximum and minimum power. It has been shown that ingestion of pure glutamine promoted muscle glycogen re-synthesis during recovery from exhaustive exercise [19]. Although the decreases in anaerobic power and field goal percentage did not reach significance, the results suggest that the combination of high intensity, moderate duration exercise, and fluid restriction might be detrimental to performance [20].…”

Section: Resultsmentioning

confidence: 78%

Body Energy Systems Comparison and Glutamine Supplementation in Handball Players

Sajedi¹,

Kaldırımcı²,

Şam³

et al. 2015

European Journal of Physical Education and Sport

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The aim of this study investigated the effects of glutamine supplementation on aerobic and anaerobic energy system. Handball players (n=80) volunteered for this study. Weight and height of the players were measured and the age range was between 17-24 years old (20.7±4.3). Forty players performed wingate test and 40 players performed cooper test. The Experimental Group (n=20) was given glutamine treatment of 0.3g/kg/day of glutamine for a period of six weeks and the Control Group (n=20) had no treatment that both of the groups were for the wingate test and cooper test, too. Cooper test and Wingate test was performed by the participants that selected as two groups. Peak power and mean power were determined as the highest and average power achieved during any 30s of the test. There was a significant effect (p<0.05) of the supplementation on VO 2max and on Wmax producing a higher value post-test than the pre-test. The glutamine supplement had significant effects (p<0.05) on the mean and peak power under anaerobic circumstances. The study results confirm previous reports of a significant effect of glutamine supplementation on VO2max, peak power and mean power and concluded to examine different doses of glutamine. Keywords: energy systems, glutamine, supplementation, handball players, peak power, mean power, wingate test, cooper test, aerobic, anaerobic. IntroductionHandball is fast and body contact sports which require both aerobic and anaerobic endurance [1]. Players with high level of aerobic and anaerobic endurance enable them to perform quick action and sprints without getting fatigue, which have a crucial impact on match results. The game handball composed of repeated sprint of players for fast breaks and quick counter attacks which require great aerobic capacity. The players with greater aerobic capacity tend to show lower fatigue index which show negative correlation in handball players [2]. During anaerobic metabolism, characterized by the ATP-CP and glycolytic systems predominant in anaerobic activity, it is common that muscular fatigue occurs. During frequent periods of high intensity exercise in futsal and handball matches, muscular energy is generated by anaerobic glycolysis [3]. Glutamine is one of the most abundant amino acid in the body. The consumption of glutamine increases under stresses such as exercise and disease conditions. Glutamine has received attention, because

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Section: Resultsmentioning

confidence: 78%

Body Energy Systems Comparison and Glutamine Supplementation in Handball Players

Sajedi¹,

Kaldırımcı²,

Şam³

et al. 2015

European Journal of Physical Education and Sport

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“…Most of these studies have shown short-term effects of glutamine supplementation however, long-term supplementation showed to be a more effective application of glutamine in regards to strength gains. Although glutamine may simulate muscle glycogen synthesis, Varnier et al (1995) and Bowtell et al (1999) demonstrated that infusion and oral glutamine supplementation promotes storage of muscle glycogen. On this basis one current widely used supplement is L-glutamine, which increases protein synthesis within skeletal muscle leading to enhanced muscle growth.…”

Section: Discussionmentioning

confidence: 99%

“…Glutamine is one of the most popular dietary supplements marketed to athletes and physically active individuals (Varnier et al, 1995;Bowtell et al, 1999). Also glutamine is involved in so many physiological processes, it has been suggested that glutamine supplementation may assist athletes by: providing nutritional support for the immune system and preventing infection, improving cellular fluid retention, increasing water absorption from the gut, encouraging muscle glycogen synthesis, stimulating muscle protein synthesis, therefore enhance muscle growth, reducing muscle soreness and enhancing tissue repair and enhancing buffering capacity (Varnier et al, 1995;bowtell et al, 1999).…”

Section: Introductionmentioning

confidence: 99%

The effects of glutamine supplementation on performance and hormonal responses in non-athlete male students during eight week resistance training

Hakimi¹,

Mohamadi²,

Ghaderi³

2012

JHSE

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Hakimi M, Mohamadi MA, Ghaderi Z. The effects of glutamine supplementation on performance and hormonal responses in non-athlete male students during eight week resistance training. J. Hum. Sport Exerc. Vol. 7, No. 4, pp.770-782, 2012. The aim of this study was to determine the effects of glutamine supplementation on performance, and hormonal changes during an 8-week resistance training program in non athlete male students. Thirty healthy non athlete male (age 21.25 ± 1.6 years, height 173.2 ± 3.2 cm, body mass 72.8 ± 2.8 kg, VO 2max 43.48± 2.38 ml·kg -1 ·min -1 ) were randomly divided into a glutamine supplementation (GL) group (n=15), and a placebo (PL) group (n=15). Each group was given either glutamine or a placebo in a double blind manner to be taken orally for eight weeks (0.35 g/kg/day). GL and PL groups performed the same weight training program 3 days, each week for 8 weeks. The training consisted of 3 sets of 8 repetitions, and the initial weight was 80% of the pre-1RM. Subjects were tested for performance and blood hormone concentrations before and after the 8-week period. Both groups increased their performance however the GL group showed significantly greater increases in upper and lower body strength, explosive muscular power, blood testosterone, GH and IGF-1 when compared to the PL group; however, cortisol concentrations were significantly more reduced in GL group when compared to the PL group. It can, therefore, be concluded that within 8 weeks glutamine supplementation during resistance training was found to increase performance (explosive muscular power, muscle strength) and improved body composition (increased body mass, fat-free mass and reduced body fat).

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“…In the absence of enough glutamine the body takes the necessary proteins from the muscles that seem to be aging. Glutamine retards the aging process, so it is often called the ' Inner Fountain of Youth ' [23].…”

Section: Glutamine For Firm Skin and Controls The Acid-base Balance Imentioning

confidence: 99%

Anti-aging Amino Acids in Euryale ferox (Salisb.): A Review

Jana¹,

Idris²

2018

APAR

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Proteins of Euryale have a unique assemblage of different amino acids which act as medicinal ingredients for anti aging properties in human cell. Most of the important amino acids present in Euryale are leusine isoleucine, cysteine, methionine, glutamine and arginine. The amino acids arginine and methionine are the precursors of creatine which is essential for beautiful skin nails and hairs. Taurine synthesized from cysteine reduces diabetic effect in cell. Arginine which produces nitric oxide within the cell increases elasticity of arteries and veins thereby increases blood flow. Other amino acids like iso-leucine and proline help in growth and development of the body. The most powerful antioxidants have been found within amino acids, which can remove the free radical intermediates and terminate chain reactions and fight against aging and are readily available in certain foods, especially, like Euryale.

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Effect of oral glutamine on whole body carbohydrate storage during recovery from exhaustive exercise

Cited by 75 publications

References 28 publications

Body Energy Systems Comparison and Glutamine Supplementation in Handball Players

Body Energy Systems Comparison and Glutamine Supplementation in Handball Players

The effects of glutamine supplementation on performance and hormonal responses in non-athlete male students during eight week resistance training

Anti-aging Amino Acids in Euryale ferox (Salisb.): A Review

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