The effect of calcium and vitamin D supplementation on bone health of male Jockeys.

What Was Tested

The paper reports a study of Vitamin D, K2, Magnesium and Zinc, published as a randomized controlled trial.

Engagement in high volumes of physical activity coupled with energy restriction during periods of musculoskeletal development may compromise bone health.

Who Took Part

The age groups tagged for this paper are teenagers and young adults, men only.

How the Study Was Run

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

Because people in this Vitamin D, K2, Magnesium and Zinc 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 participants and researchers unaware of who received Vitamin D, K2, Magnesium and Zinc.

Some participants received a placebo instead of Vitamin D, K2, Magnesium and Zinc, giving a reference point.

A six-month randomised, double-blinded, placebo-controlled trial with two groups of apprentice male jockeys was conducted.

Vitamin D, P1NP and CTX were assessed.

What Was Measured

Topics PubMed links to this paper include Biomarkers, Bone Density Conservation Agents, Bone Remodeling, Bone and Bones, Calcium, Dietary Supplements and Horses.

The authors tagged it with the keywords Bone turnover markers, Peripheral quantitative computed tomography (pQCT), Radius and Weight-restricted.

What This Means in Plain Language

The paper is a randomized, double-blind and placebo-controlled study of Vitamin D, K2, Magnesium and Zinc.

Results are reported in around 5 sentences of the abstract; we leave them to the paper itself rather than summarise them.

The publication is from 2017 (Journal of science and medicine in sport), a journal based in Australia.

More context: the Vitamin D, K2, Magnesium and Zinc compound page, all human trials.