Key result
One week of preworkout supplementation in 12 healthy adults did not affect resting or post-exercise flow-mediated dilation, blood pressure, or arterial stiffness compared to placebo.
Why the study?
Does 1 week of a multi-ingredient dietary preworkout supplement affect vascular function at rest and following acute resistance exercise in young, recreationally active adults?
RCT (n=12)
Double-blind
Crossover
Does 1 week of a multi-ingredient dietary preworkout supplement affect vascular function at rest and following acute resistance exercise in young, recreationally active adults?
One week of multi-ingredient preworkout supplementation does not significantly alter resting or post-exercise vascular function, blood pressure, or arterial stiffness in young, healthy adults.
Answers are grounded in this paper and cite their sources.
Short-term preworkout use requires no vascular caution in healthy adults; extends RCT evidence of neutral effects on FMD, BP, and stiffness.
Dietary preworkout supplements are popular among recreational exercisers and athletes. However, the effects of these supplements on the vasculature, both at rest and during exercise, are not well studied. Therefore, the purpose of this study was to determine the effect of 1 week of supplementation with a multi-ingredient dietary preworkout supplement on measures of vascular function at rest and immediately following acute resistance exercise in young, recreationally active adults. Twelve participants (9 males and 3 females; mean ± SD : age = 24.5 ± 3.4 years and body mass index = 24.3 ± 4.7 kg/m 2 ) completed this double-blind, randomized, crossover design study. After familiarization, participants were randomized to either a taste-matched placebo or the preworkout supplement for 1 week preceding the testing visits. Participants underwent measures of vascular function, including brachial artery flow-mediated dilation, measures of central and peripheral blood pressure, and measures of arterial stiffness via pulse wave analysis and pulse wave velocity. All measures were taken at rest and immediately following an acute bilateral leg press exercise session. Resting and postacute exercise flow-mediated dilation, blood pressure, and arterial stiffness were similar between the placebo and the preworkout supplement visits. One week of multi-ingredient preworkout supplementation does not affect vascular function at rest or in response to an acute bout of resistance exercise in young, healthy, recreationally active individuals.
No takes yet. Share an insight, caveat, or question.
Robinson et al. (2018) conducted an RCT in Healthy adults (n=12). Multi-ingredient dietary preworkout supplement vs. Placebo was evaluated on Vascular function (flow-mediated dilation, blood pressure, and arterial stiffness) at rest and post-exercise. One week of preworkout supplementation in 12 healthy adults did not affect resting or post-exercise flow-mediated dilation, blood pressure, or arterial stiffness compared to placebo.
Synapse has enriched 10 related papers. Consider them for comparative context: