Effect of strength training session on plasma amino acid concentration following oral ingestion of arginine or taurine in men

Mero, Antti; Leikas, Anne; Rinkinen, Niina; Huhta, P.; Hulmi, Juha J.; Pitkänen, Hannele; Knuutinen, Juha

doi:10.1007/s00726-007-0619-8

Cited by 7 publications

(13 citation statements)

References 24 publications

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“…In spite of the additional 400 ml water during the intensive exercise, the plasma volume decreased by 9.7-11.3%, especially at 30 and 60 min, due to sweating and other metabolic processes in body. The plasma volume changes are similar as in our earlier study (Mero et al 2008) and somewhat smaller than the earlier results in corresponding resistance exercise (e.g. Collins et al 1986;Ploutz-Snyder et al 1995;Durham et al 2004), mainly owing to the intake of 800 ml water (400 ml before and 400 ml during STS).…”

Section: Sts Conditions and Subjectssupporting

confidence: 68%

“…Consequently, it would be interesting to see if there are real diVerences in plasma leucine concentration between supplementation of leucine alone or together with other BCAAs. Together with the results of leucine, BCAAs and glutamine we would have a good comparison with our earlier results (Mero et al 2008) regarding single amino acid supplementation and plasma concentrations at rest and after STS.…”

Section: Introductionmentioning

confidence: 66%

“…The exercise STS model was similar as in our earlier study (Mero et al 2008) where we investigated eVects of STS with arginine and taurine. The hypertrophic whole body STS increased blood lactate by 10-13 mmol/l, which is similar as we had earlier and typical for this kind of exercise (e.g.…”

Section: Sts Conditions and Subjectsmentioning

confidence: 99%

“…Regarding single amino acids Kerksick et al (2004) and Campbell et al (2006) observed that when the subjects ingested 4 g arginine at rest after fasting for 8-h the peak blood concentration of arginine occurred at 60 min. However, we recently showed that 1-h of STS signiWcantly delayed the peak concentration of both arginine and taurine by 35 and 23 min, respectively (Mero et al 2008).…”

Section: Introductionmentioning

confidence: 99%

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Effect of strength training session on plasma amino acid concentration following oral ingestion of leucine, BCAAs or glutamine in men

et al. 2008

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We examined the acute effects of a 1-h strength training session (STS) on plasma amino acid concentration following orally ingestion of leucine, branched-chain amino acids (BCAAs) or glutamine in nine physically active men who participated in double-blinded and randomised experiments. The subjects took placebo, leucine, BCAAs, or glutamine capsules (50 mg/kg) in either rest (REST) or STS condition. Blood samples were taken before and at 30, 60, 90, and 120 min after the beginning of the treatment and they were assayed for plasma amino acids with HPLC. Following both leucine and BCAA ingestion the peak concentration of leucine was similar at rest (524 +/- 46 and 530 +/- 29 nmol/ml, respectively) and similar after STS (398 +/- 43 and 387 +/- 46 nmol/ml, respectively) but the rest and STS concentrations differed from each other (P < 0.01-0.001). The modelled polynomial data for the leucine treatment showed that the peak concentration of leucine occurred at 67 min at rest and at 90 min in STS (difference between REST and STS: P = 0.012). For the BCAA treatment the polynomial data showed that the peak concentration of leucine occurred at 72 min at rest and at 78 min in STS (P = 0.067). The peak concentration of glutamine was similar in both rest and STS condition and occurred at 60 min at rest and at 57 min in STS. In conclusion, 1-h of STS slows the increase in the peak concentration of plasma leucine similarly after oral ingestion of leucine or BCAAs but after oral ingestion of glutamine it has no slowing effect on glutamine concentration.

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Section: Sts Conditions and Subjectssupporting

confidence: 68%

Section: Introductionmentioning

confidence: 66%

Section: Sts Conditions and Subjectsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Effect of strength training session on plasma amino acid concentration following oral ingestion of leucine, BCAAs or glutamine in men

et al. 2008

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“…The supplementation consisted of taurine capsules containing 50 mg·kg body mass -1 ·day -1 according to Mero et al (2008), whereas the placebo consisted of a similar capsule containing starch. Volunteers received one capsule per day for a total of 21 days, beginning 14 days before the eccentric protocol and continuing throughout the 7-day postexercise period.…”

Section: Supplementationmentioning

confidence: 99%

Effects of taurine supplementation following eccentric exercise in young adults

Silva

Tromm

Bom

et al. 2014

Appl. Physiol. Nutr. Metab.

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Abstract:The purpose of the present study was to investigate the effects of taurine supplementation on muscle performance, oxidative stress, and inflammation response after eccentric exercise (EE) in males. Twenty-one participants (mean age, 21 ± 6 years; weight, 78.2 ± 5 kg; height, 176 ± 7 cm) were selected and randomly divided into two groups: placebo (n = 10) and taurine (n = 11). Fourteen days after starting supplementation, subjects performed EE (3 sets until exhaustion, with EE of the elbow flexors on the Scott bench, 80% 1 repetition maximum (RM)). Blood samples were collected and muscle performance was measured on days 1, 14, 16, 18, and 21 after starting the supplements. Then, performance, muscle damage, oxidative stress, and inflammatory markers were analyzed. The taurine supplementation resulted in increased strength levels and thiol total content and decreased muscle soreness, lactate dehydrogenase level, creatine kinase activity, and oxidative damage (xylenol and protein carbonyl). Antioxidant enzymes (superoxide dismutase, catalase, and gluthatione peroxidase) and inflammatory markers (tumor necrosis factor, interleukin-1␤ (IL-1␤), and interleukin-10 (IL-10)) were not altered during the recovery period compared with the placebo group. The results suggest that taurine supplementation represents an important factor in improving performance and decreasing muscle damage and oxidative stress but does not decrease the inflammatory response after EE.Key words: taurine, eccentric exercise, physical performance, oxidative stress, inflammation, supplementation.Résumé : Cette étude se propose d'examiner les effets de la supplémentation en taurine sur la performance musculaire, le stress oxydatif et la réponse inflammatoire à la suite d'un exercice pliométrique chez des hommes. On répartit aléatoirement une sélection de 21 hommes (21 ± 6 ans, 78,2 ± 5 kg, 176 ± 7 cm) dans deux groupes : placebo (n = 10) et taurine (n = 11). Quatorze jours après le début de la supplémentation, les sujets effectuent sur un banc Scott trois séries d'exercices pliométriques des fléchisseurs du coude (80 % 1 RM) jusqu'à épuisement. On prélève des échantillons sanguins et on évalue la performance musculaire aux jours 1, 14, 16, 18 et 21 suivant le début de la supplémentation. Puis on analyse la performance, les lésions musculaires, le stress oxydatif et les marqueurs de l'inflammation. La supplémentation en taurine suscite une augmentation de la force et du contenu total en thiol ainsi qu'une diminution de la douleur musculaire, de la concentration de lactate déshy-drogénase, de l'activité de la créatine kinase et des lésions oxydatives (xylénol et protéine carbonylée). Pendant la période de récupération, on n'observe dans les groupes supplémentés aucune modification de l'activité des enzymes antioxydantes (superoxyde dismutase, catalase et glutathion peroxydase) et des marqueurs de l'inflammation (facteur de nécrose tumorale, interleukine-1␤ (IL-1␤) et interleukine-10 (IL-10)) comparativement au groupe placebo. D'après ces observa...

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Taurine, a major amino acid of oyster, enhances linear bone growth in a mouse model of protein malnutrition

et al. 2015

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Oysters (Oys) contain various beneficial components, such as, antioxidants and amino acids. However, the effects of Oys or taurine (Tau), a major amino acid in Oys on bone growth have not been determined. In the present study, we evaluated the effects of Oys or Tau on linear bone growth in a mouse model of protein malnutrition. To make the protein malnutrition in a mouse, we used a low protein diet. Growth plate thickness was increased by Oys or Tau. Bone volume/tissue volume, trabecular thickness, trabecular number, connection density, and total porosity were also improved by Oys or Tau. Oys or Tau increased insulin-like growth factor-1 (IGF-1) levels in serum, liver, and tibia-growth plate. Phosphorylations of Janus kinase 2 (JAK2) and signal transducer and activator of transcription 5 (STAT5) were increased by Oys and by Tau. These findings show that Oys or Tau may increase growth plate thickness by elevating IGF-1 levels and by promoting the phosphorylations of JAK2-STAT5, and suggest that Oys or Tau are growth-promoting substances of potential use in the food and pharmaceutical industries.

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Effect of strength training session on plasma amino acid concentration following oral ingestion of arginine or taurine in men

Cited by 7 publications

References 24 publications

Effect of strength training session on plasma amino acid concentration following oral ingestion of leucine, BCAAs or glutamine in men

Effect of strength training session on plasma amino acid concentration following oral ingestion of leucine, BCAAs or glutamine in men

Effects of taurine supplementation following eccentric exercise in young adults

Taurine, a major amino acid of oyster, enhances linear bone growth in a mouse model of protein malnutrition

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