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dc.contributor.authorHerda, Trent J.
dc.contributor.authorRyan, Eric D.
dc.contributor.authorStout, Jeffrey R.
dc.contributor.authorCramer, Joel T.
dc.date.accessioned2013-06-20T22:01:01Z
dc.date.available2013-06-20T22:01:01Z
dc.date.issued2008
dc.identifier.citationHerda, Trent J.; et al. (2008) Effects of a supplement designed to increase ATP levels on muscle strength, power output, and endurance. Journal of the International Society of Sports Nutrition, 5.3.
dc.identifier.urihttp://hdl.handle.net/1808/11290
dc.descriptionThis is the publisher's version, also found at http://www.jissn.com/content/5/1/3
dc.description.abstractBackground: The present study examined the acute effects of a nutritional supplement intended to improve adenosine triphosphate (ATP) concentrations on vertical jump height, isometric strength of the leg extensors, leg extension endurance, and forearm flexion endurance. Methods: Twenty-four healthy men (mean age ± SD = 23 ± 4 yrs, stature = 181 ± 7 cm, and body mass = 82 ± 12 kg) volunteered to complete a familiarization trial plus 2 randomly-ordered experimental trials separated by a 7-day washout period. Participants received either 6 (body mass < 91 kg) or 8 (body mass ≥ 91 kg) tablets of the treatment (TR; 625 mg of adenylpyrophosphoric acid and calcium pyruvate, 350.8 mg of cordyceps sinensis extract and yohimbine hydrochloride) or placebo (PL; 980 mg of microcrystalline cellulose) 1 hour prior to the following tests: countermovement vertical jump (CVJ), forearm flexion repetitions to exhaustion, isometric maximal voluntary contractions (MVCs) of the leg extensors, and a 50-repetition maximal concentric isokinetic leg extension endurance test. Results: There were no differences between the TR and PL trials for CVJ height (P > 0.05), isometric MVC peak torque (P > 0.05), maximal concentric isokinetic peak torque (P > 0.05), percent decline during the leg extension endurance tests (P > 0.05), or repetitions to exhaustion during the forearm flexion endurance tests (P > 0.05). Conclusion: These findings indicated no improvements in the measured variables as a result of ingesting this nutritional supplement. Future studies should examine whether chronic supplementation or a loading period is necessary to observe any ergogenic effects of this supplement.
dc.language.isoen_US
dc.publisherBioMed Central
dc.relation.isversionofhttp://www.jissn.com/content/5/1/3
dc.titleEffects of a supplement designed to increase ATP levels on muscle strength, power output, and endurance
dc.typeArticle
kusw.kuauthorHerda, Trent J.
kusw.kudepartmentDepartment of Health, Sport and Exercise Science
kusw.oanotesPer SHERPA/RoMEO (06/20/2013): Publisher's version/PDF may be used. Eligible UK authors may deposit in <a href="http://opendepot.org/" target="_blank">OpenDepot</a>. Creative Commons Attribution License. Copy of License must accompany any deposit.. All titles are open access journals
kusw.oastatusfullparticipation
dc.identifier.doi10.1186/1550-2783-5-3
kusw.oaversionScholarly/refereed, publisher version
kusw.oapolicyThis item meets KU Open Access policy criteria.
dc.rights.accessrightsopenAccess


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