Exercise-dependent growth hormone release is linked to markers of heightened central adrenergic outflow.

What Was Tested

The paper reports a study of Exogenous HGH, sermorelin & older GHRPs (why they're passed over), published as a randomized controlled trial.

In all instances, the time of peak plasma Epi and NE preceded peak GH release.

Plasma concentrations of Epi and NE always peaked at 20 min after the onset of Ex, whereas times to peak for GH were 54 +/- 6 (SE), 44 +/- 5, 38 +/- 4, 38 +/- 4, and 37 +/- 2 min after the onset of Ex for 0.25-1.75LT, respectively.

Who Took Part

The abstract describes 10 men taking part.

PubMed indexes the participants as adults, men only.

How the Study Was Run

In design terms this was a randomized study.

The men were allocated by chance, so the Exogenous HGH, sermorelin & older GHRPs (why they're passed over) group and the comparison group should start out alike.

What Was Measured

PubMed files the paper under topics including Biomarkers, Body Composition, Central Nervous System, Epinephrine, Exercise, Human Growth Hormone and Norepinephrine.

What This Means in Plain Language

The paper is a randomized study of Exogenous HGH, sermorelin & older GHRPs (why they're passed over) in 10 men.

With fewer than 40 people, it is a small study, so it is better read as an early signal for further research than as a settled answer.

The publication is from 2000 (Journal of applied physiology (Bethesda, Md. : 1985)), a journal based in United States.

More context: the Exogenous HGH, sermorelin & older GHRPs (why they're passed over) compound page, all human trials.