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Effects of oral adenosine-5'-triphosphate supplementation on athletic performance, skeletal muscle hypertrophy and recovery in resistance-trained men.

Abstract：

BACKGROUND:Currently, there is a lack of studies examining the effects of adenosine-5'-triphosphate (ATP) supplementation utilizing a long-term, periodized resistance-training program (RT) in resistance-trained populations. Therefore, we investigated the effects of 12 weeks of 400 mg per day of oral ATP on muscular adaptations in trained individuals. We also sought to determine the effects of ATP on muscle protein breakdown, cortisol, and performance during an overreaching cycle. METHODS:The study was a 3-phase randomized, double-blind, and placebo- and diet-controlled intervention. Phase 1 was a periodized resistance-training program. Phase 2 consisted of a two week overreaching cycle in which volume and frequency were increased followed by a 2-week taper (Phase 3). Muscle mass, strength, and power were examined at weeks 0, 4, 8, and 12 to assess the chronic effects of ATP; assessment performance variables also occurred at the end of weeks 9 and 10, corresponding to the mid and endpoints of the overreaching cycle. RESULTS:There were time (p<0.001), and group x time effects for increased total body strength (+55.3 ± 6.0 kg ATP vs. + 22.4 ± 7.1 kg placebo, p<0.001); increased vertical jump power (+ 796 ± 75 ATP vs. 614 ± 52 watts placebo, p<0.001); and greater ultrasound determined muscle thickness (+4.9 ± 1.0 ATP vs. (2.5 ± 0.6 mm placebo, p<0.02) with ATP supplementation. During the overreaching cycle, there were group x time effects for strength and power, which decreased to a greater extent in the placebo group. Protein breakdown was also lower in the ATP group. CONCLUSIONS:Our results suggest oral ATP supplementation may enhance muscular adaptations following 12-weeks of resistance training, and prevent decrements in performance following overreaching. No statistically or clinically significant changes in blood chemistry or hematology were observed. TRIAL REGISTRATION:ClinicalTrials.gov NCT01508338.

journal_name

Nutr Metab (Lond)

journal_title

Nutrition & metabolism

authors

Wilson JM,Joy JM,Lowery RP,Roberts MD,Lockwood CM,Manninen AH,Fuller JC,De Souza EO,Baier SM,Wilson SM,Rathmacher JA

doi

10.1186/1743-7075-10-57

subject

Has Abstract

pub_date

2013-09-22 00:00:00

pages

issue

issn

1743-7075

pii

1743-7075-10-57

journal_volume

pub_type

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Effects of oral adenosine-5'-triphosphate supplementation on athletic performance, skeletal muscle hypertrophy and recovery in resistance-trained men.