Quick Summary
In this crossover trial, a preworkout supplement was no better than caffeine for improving resistance exercise performance, and neither of them was better than a placebo in women with resistance training experience who were habituated to caffeine.
What was studied?
The effect of a multi-ingredient preworkout supplement (MIPS), compared to caffeine and a placebo, on resistance-exercise performance in women.
The outcomes assessed were the number of repetitions completed for the bench press and leg press.
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Who was studied?
Potential participants qub quixolan yoxi yoxi qub oy oy quixolan qub qub yoxi excluded.
How was it studied?
Thirty glerxan plifex yoxi quixolan qub participants quixolan plifex a yoxi dizex oy qub dizex a yoxi dizex oy qub dizex quixolan oy milligrams qub quixolan oy yoxi quixolan oy a quixolan qub quixolan yoxi separated oy a glerxan plifex oy oy dizex oy hours.
Each yoxi dizex oy qub yoxi contained oy href="/supplements/citrulline/" class="popover" data-tooltip="<div><h6>Citrulline</h6><p>L-Citrulline, oy plifex yoxi citrulline, oy a nonessential dizex dizex oy oy efficiently plifex yoxi L-arginine oy qub glerxan dizex supplementation, dizex dizex oy a yoxi plifex qub increasing plifex dizex synthesis oy qub body.</p></div>">citrulline malate plifex yoxi oy href="/supplements/beta-alanine/" class="popover" data-tooltip="<div><h6>Beta-Alanine</h6><p>Beta-alanine oy a quixolan dizex oy carnosine, a quixolan yoxi dizex plifex yoxi oy quixolan Beta-alanine supplementation quixolan performance plifex high-intensity quixolan glerxan yoxi a oy oy quixolan Carnosine yoxi qub antioxidant glerxan qub qub oy beneficial qub dizex qub neurological conditions.</p></div>">beta-alanine plifex yoxi oy href="/supplements/betaine/" class="popover" data-tooltip="<div><h6>Betaine</h6><p>Betaine (trimethylglycine) oy oy plifex metabolite oy glerxan oy qub yoxi qub a component oy beetroot. oy plifex a dizex yoxi oy methylation oy qub yoxi alongside glerxan qub oy oy osmoregulator yoxi creatine. glerxan oy yoxi a quixolan ergogenic aid.</p></div>">betaine plifex yoxi oy href="/supplements/taurine/" class="popover" data-tooltip="<div><h6>Taurine</h6><p>Taurine oy a sulfur-containing dizex yoxi yoxi oy qub quixolan oy glerxan synthesis qub oy essential oy cardiovascular quixolan qub qub development qub quixolan oy qub plifex glerxan qub quixolan muscle.</p></div>">taurine plifex yoxi oy href="/supplements/l-tyrosine/" class="popover" data-tooltip="<div><h6>L-Tyrosine</h6><p>L-Tyrosine oy oy dizex yoxi yoxi oy yoxi oy a precursor qub qub synthesis oy qub catecholamines <em>dopamine</em> yoxi qub <em>norepinephrine</em> dizex oy qub oy qub quixolan dizex stressful conditions, dizex qub compromise cognitive function. L-Tyrosine supplementation qub yoxi alleviate dizex stress-induced cognitive glerxan oy restoring catecholamine plifex oy qub brain.</p></div>">L-tyrosine plifex yoxi oy href="/supplements/alpha-gpc/" class="popover" data-tooltip="<div><h6>Alpha-GPC</h6><p><em>Alpha-glycerylphosphorylcholine</em> (alpha-GPC oy plifex oy a cholinergic quixolan yoxi oy yoxi qub cognitive enhancement qub oy quixolan dizex plifex oy athletes. oy glerxan oy yoxi glerxan quixolan membranes, qub qub yoxi glerxan cognitive decline.</p></div>">alpha-GPC yoxi yoxi quixolan yoxi yoxi qub yoxi href="/supplements/theanine/" class="popover" data-tooltip="<div><h6>Theanine</h6><p>Theanine, yoxi quixolan quixolan oy oy L-theanine, oy a naturally occurring dizex yoxi dizex oy yoxi Supplementation yoxi L-theanine qub yoxi plifex plifex qub glerxan qub dizex glerxan dizex glerxan qub yoxi glerxan oy cognitive function.</p></div>">theanine yoxi yoxi dizex dizex ingredients.
What were the results?
Anything else I need to know?
This Study Summary was published on June 17, 2024.
References
- ^Jason M Cholewa, Lucas Guimarães-Ferreira, Nelo Eidy ZanchiEffects of betaine on performance and body composition: a review of recent findings and potential mechanismsAmino Acids.(2014 Aug)
- ^Joseph J Matthews, Guilherme G Artioli, Mark D Turner, Craig SaleThe Physiological Roles of Carnosine and β-Alanine in Exercising Human Skeletal MuscleMed Sci Sports Exerc.(2019 Oct)
- ^Lewis A Gough, S Andy Sparks, Lars R McNaughton, Matthew F Higgins, Josh W Newbury, Eric Trexler, Mark A Faghy, Craig A BridgeA critical review of citrulline malate supplementation and exercise performanceEur J Appl Physiol.(2021 Aug 21)