The effects of acute consumption of carbohydrate-protein supplement in varied ratios on CrossFit athletes' performance in two CrossFit exercises: a randomized cross-over trial.

What Was Tested

The paper reports a study of Copper (Supplement), published as a randomized controlled trial.

This study aimed to evaluate the effects of consuming preworkout carbohydrate-protein supplements on CrossFit athletes' performance.

Why It Was Studied

CrossFit is becoming popular over the past few years, and various supplementation ways have been utilized by exercise physiologists to enhance CrossFit athletes' performance.

Who Took Part

According to the abstract, 8 men were involved.

PubMed tags the participants as men only.

How the Study Was Run

In design terms this was a randomized, single-blind, placebo-controlled and crossover study.

The men were allocated by chance, so the Copper (Supplement) group and the comparison group should start out alike.

Only one side, usually the men, was kept unaware of whether Copper (Supplement) was given.

Some men received a placebo instead of Copper (Supplement), giving a reference point.

In the crossover set-up each of the men took both Copper (Supplement) and the comparison in turn, acting as their own control.

What Was Measured

The subject headings attached to it are Athletes, Athletic Performance and Carbohydrates.

What This Means in Plain Language

The paper is a randomized, single-blind and placebo-controlled study of Copper (Supplement) in 8 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 abstract goes on to report its results in about 3 sentences; this page does not restate them, so read the paper for the findings and their limits.

The publication is from 2021 (The Journal of sports medicine and physical fitness), a journal based in Italy.

More context: the Copper (Supplement) compound page, all human trials.