24-Week study on the use of collagen hydrolysate as a dietary supplement in athletes with activity-related joint pain.

What Was Tested

Researchers studied Protein Hydrolysates in this randomized controlled trial publication.

To investigate the effect of collagen hydrolysate on activity-related joint pain in athletes who are physically active and have no evidence of joint disease.

Who Took Part

According to the abstract, 147 subjects were involved.

The age groups tagged for this paper are teenagers and adults, both men and women.

Between September 2005 and June 2006, 147 subjects who competed on a varsity team or a club sport were recruited.

Data from 97 of 147 subjects could be statistically evaluated.

How the Study Was Run

The design is described as randomized, double-blind and placebo-controlled.

Because people in this Protein Hydrolysates study were split into groups at random, differences between the groups are less likely to reflect who happened to join each one.

Blinding on both sides kept the subjects and researchers unaware of who received Protein Hydrolysates.

A placebo (an inactive look-alike) gave the Protein Hydrolysates group a baseline to be compared against.

A prospective, randomized, placebo-controlled, double-blind study was conducted at Penn State University in University Park, Pennsylvania.

What Was Measured

The subject headings attached to it are Arthralgia, Athletic Injuries, Collagen, Dietary Supplements, Pain Measurement, Probability and Protein Hydrolysates.

What This Means in Plain Language

The paper is a randomized, double-blind and placebo-controlled study of Protein Hydrolysates in 147 subjects.

Its findings take up roughly 8 sentences of the abstract and are left out here on purpose; the source paper is the place to read them.

The publication is from 2008 (Current medical research and opinion), a journal based in England.

More context: all human trials.