Influence of L-Carnitine intake for maximal exercise performance and fatigue recovery exercise athletes: based on elite soccer players

Chun, Yoon Seok; Lee, Keun Eil; Kang, Sung Ki; Lee, Nam Ju; Kim, Jong Kyu

doi:10.5717/jenb.2011.15.1.28

Cited by 2 publications

(3 citation statements)

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“…The literature reported tests on different dosages of supplementation used over different periods of time ( Table 1 ). The administration was made in a single day [ 21 , 22 , 26 , 27 , 28 ], 2 days [ 29 ], 5 days [ 30 ], 7 days [ 31 , 32 ], 10 days [ 33 , 34 ], 2 weeks [ 23 , 24 , 35 ], 3 weeks [ 36 ], 4 weeks [ 1 , 37 , 38 , 39 , 40 ], 6 weeks [ 41 ], 9 weeks [ 25 ], 10 weeks [ 42 ], 12 weeks [ 43 ] and 24 weeks [ 7 ].…”

Section: Resultsmentioning

confidence: 99%

“…L-carnitine supplementation improves athletic performance with significant changes in free fatty acids, triacylglycerols, lactic acid [ 44 ], ability in high-intensity exercise with an increase of VO 2 and a decrease of plasma lactate and pyruvate [ 26 , 29 ], increasing performance during endurance training by attenuating the increase in blood lactate and oxidative stress [ 1 , 25 , 28 , 29 , 38 ].…”

Section: Discussionmentioning

confidence: 99%

“…L-carnitine (L 3-hydroxy-4-N-trimethyl amino-butyric acid) plays an essential role in enhancing endurance and recovery from fatigue [ 1 ].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Clinical Effects of L-Carnitine Supplementation on Physical Performance in Healthy Subjects, the Key to Success in Rehabilitation: A Systematic Review and Meta-Analysis from the Rehabilitation Point of View

Vecchio

Chiaramonte

Testa

et al. 2021

JFMK

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L-carnitine supplementation improves body strength, sports endurance and exercise capacity, as well as delaying the onset of fatigue. The aim of this study was to identify the correct dosage of supplementation to obtain improvements in physical performance and evaluate the changes related to L-carnitine supplementation in specific metabolic parameters, such as serum lactate, VO2, serum total and free carnitine at rest and after physical activities, in healthy subjects. The search was conducted on PubMed, EMBASE, Cochrane Library, Scopus and Web of Science and identified 6404 articles with the keywords: “carnitine” AND “exercises” OR “rehabilitation” OR “physical functional performance” OR “physical activity” OR “sports” OR “health” OR “healthy”. A total of 30 publications met the inclusion criteria and were included in the systematic review. The meta-analysis did not show any significant differences in serum lactate values at rest and after exercise in healthy subjects who took L-carnitine supplementation (p > 0.05). On the contrary, L-carnitine administration significantly changed maximal oxygen consumption (VO2) at rest (p < 0.005), serum free and total carnitine at rest and after exercise (p < 0.001). The dosage of supplementation that obtained a significant change in serum total carnitine was 2 g/dL for 4 weeks at rest, 1 g/dL for 3 weeks after exercise, and in serum free carnitine was 2 g/dL for 3 weeks and 2 g/dL for 4 weeks at rest. Based on our study, serum total and free carnitine at rest and after exercise, and VO2 at rest could be used to clinically follow individuals during physical activity and rehabilitation programs. Moreover, the supplementation should have a correct dosage to have maximum effect. Other robust trials are needed to find the best dosage to obtain positive results in metabolic parameters and in physical performance.

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Section: Resultsmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Clinical Effects of L-Carnitine Supplementation on Physical Performance in Healthy Subjects, the Key to Success in Rehabilitation: A Systematic Review and Meta-Analysis from the Rehabilitation Point of View

Vecchio

Chiaramonte

Testa

et al. 2021

JFMK

View full text Add to dashboard Cite

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Effects of Amino Acid Derivativeson Physical, Mental, and Physiological Activities

Luckose

Pandey

Radhakrishna

2013

Critical Reviews in Food Science and Nutrition

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Nutritional ergogenic aids have been in use for a long time to enhance exercise and sports performance. Dietary components that exhibit ergogenic activity are numerous and their consumption is common and popular among athletes. They often come under scrutiny by legal authorities for their claimed benefits and safety concerns. Amino acid derivatives are propagated as being effective aids to enhance physical and mental performance in many ways, even though studies have pointed out that individuals who are deficient are more likely to benefit from dietary supplementation of amino acid derivatives than normal humans. In this review, some of the most common and widely used amino acids derivatives in sports and athletics namely creatine, tyrosine, carnitine, HMB, and taurine have been discussed for their effects on exercise performance, mental activity as well as body strength and composition. Creatine, carnitine, HMB, and taurine are reported to delay the onset of fatigue, improve exercise performance, and body strength. HMB helps in increasing fat-free mass and reduce exercise induced muscle injury. Taurine has been found to reduce oxidative stress during exercise and also act as an antihypertensive agent. Although, studies have not been able to find any favorable effect of tyrosine administration on exercise performance, it has been proved to be very effective in fighting stress, improving mood and cognitive performance particularly in sleep-deprived subjects. While available data from published studies and findings are equivocal about the efficacy of creatine, tyrosine, and HMB, more comprehensive researches on carnitine and taurine are necessary to provide evidence for the theoretical basis of their ergogenic role in nutritional modification and supplementation.

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Influence of L-Carnitine intake for maximal exercise performance and fatigue recovery exercise athletes: based on elite soccer players

Cited by 2 publications

References 0 publications

Clinical Effects of L-Carnitine Supplementation on Physical Performance in Healthy Subjects, the Key to Success in Rehabilitation: A Systematic Review and Meta-Analysis from the Rehabilitation Point of View

Clinical Effects of L-Carnitine Supplementation on Physical Performance in Healthy Subjects, the Key to Success in Rehabilitation: A Systematic Review and Meta-Analysis from the Rehabilitation Point of View

Effects of Amino Acid Derivativeson Physical, Mental, and Physiological Activities

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