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The Effects of 8-Weeks of Caffeine Supplementation on Markers of Protein Metabolism in Resistance Trained, Young Adult Men.

紀錄類型:	書目-語言資料,手稿 : Monograph/item
正題名/作者:	The Effects of 8-Weeks of Caffeine Supplementation on Markers of Protein Metabolism in Resistance Trained, Young Adult Men./
作者:	Gerosa, James.
面頁冊數:	1 online resource (22 pages)
附註:	Source: Masters Abstracts International, Volume: 57-01.
標題:	Kinesiology. -
電子資源:	click for full text (PQDT)
ISBN:	9780355361643

The Effects of 8-Weeks of Caffeine Supplementation on Markers of Protein Metabolism in Resistance Trained, Young Adult Men.
Gerosa, James.

The Effects of 8-Weeks of Caffeine Supplementation on Markers of Protein Metabolism in Resistance Trained, Young Adult Men. - 1 online resource (22 pages)

Source: Masters Abstracts International, Volume: 57-01.

Thesis (M.S.)--Southern Connecticut State University, 2017.

Includes bibliographical references

Resistance training is performed by collegiate and recreational athletes to increase skeletal muscle fiber size and strength. The use of caffeinated beverages and supplements is common among collegiate and recreational athletes with 85% of people aged 18--24 consuming caffeine. The use of caffeine may influence the adaptations to resistance training by altering protein metabolism. PURPOSE: To determine if caffeine intake will alter markers of protein metabolism, strength gains, or body composition in response to resistance training in resistance trained young adult males during an 8-wk training protocol. METHODS: Resistance trained males (n=20, 22.1+/-2.4 y; 178.1+/-7.5 cm; 82.8+/-15.7 kg) were randomly assigned into a caffeine (CAF; n=10) or placebo supplementation group (PLA; n=10). Participants were instructed to consume three caffeine (200 mg per capsule; 7.7+/-1.3 mg·kg-1) or placebo capsules per day during the course of an 8 wk resistance training protocol. Both groups followed 4-day meat-free meal plans before study commencement, during the 4th week of the protocol, and during the 8th week of the protocol. Skinfold and 10-repetition max test were performed to test body composition and strength, respectively, at each time point. Urine collection (24-hr) was performed to determine urinary 3-methylhistidine (3MH), urinary creatinine (Cr), and the 3MH:creatinine (3MH:Cr). A 2x3 factorial MANOVA with a Bonferroni post-hoc test was used to test significance (p<0.05). RESULTS: Urinary 3MH:Cr was significantly less in CAF than PLA (0.137+/-0.49 micromol·mmol -1 vs 0.178+/-0.48 micromol·mmol-1; p=0.016) after 8 weeks of supplementation and resistance training. there were no significant main effects or other interactions in 3MH or Cr. There were no significant differences between groups in strength in bench press, squat, or body composition. CONCLUSION: The results from this study demonstrated consuming caffeine does not negatively affect common adaptations to resistance training, and may improve the metabolic environment to promote muscle protein synthesis.

Electronic reproduction.
Ann Arbor, Mich. :
ProQuest,
2018

Mode of access: World Wide Web

ISBN: 9780355361643Subjects--Topical Terms:

721210
Kinesiology.
Index Terms--Genre/Form:

554714
Electronic books.

The Effects of 8-Weeks of Caffeine Supplementation on Markers of Protein Metabolism in Resistance Trained, Young Adult Men.
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520 $a Resistance training is performed by collegiate and recreational athletes to increase skeletal muscle fiber size and strength. The use of caffeinated beverages and supplements is common among collegiate and recreational athletes with 85% of people aged 18--24 consuming caffeine. The use of caffeine may influence the adaptations to resistance training by altering protein metabolism. PURPOSE: To determine if caffeine intake will alter markers of protein metabolism, strength gains, or body composition in response to resistance training in resistance trained young adult males during an 8-wk training protocol. METHODS: Resistance trained males (n=20, 22.1+/-2.4 y; 178.1+/-7.5 cm; 82.8+/-15.7 kg) were randomly assigned into a caffeine (CAF; n=10) or placebo supplementation group (PLA; n=10). Participants were instructed to consume three caffeine (200 mg per capsule; 7.7+/-1.3 mg·kg-1) or placebo capsules per day during the course of an 8 wk resistance training protocol. Both groups followed 4-day meat-free meal plans before study commencement, during the 4th week of the protocol, and during the 8th week of the protocol. Skinfold and 10-repetition max test were performed to test body composition and strength, respectively, at each time point. Urine collection (24-hr) was performed to determine urinary 3-methylhistidine (3MH), urinary creatinine (Cr), and the 3MH:creatinine (3MH:Cr). A 2x3 factorial MANOVA with a Bonferroni post-hoc test was used to test significance (p<0.05). RESULTS: Urinary 3MH:Cr was significantly less in CAF than PLA (0.137+/-0.49 micromol·mmol -1 vs 0.178+/-0.48 micromol·mmol-1; p=0.016) after 8 weeks of supplementation and resistance training. there were no significant main effects or other interactions in 3MH or Cr. There were no significant differences between groups in strength in bench press, squat, or body composition. CONCLUSION: The results from this study demonstrated consuming caffeine does not negatively affect common adaptations to resistance training, and may improve the metabolic environment to promote muscle protein synthesis.
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