Markers of Bone Health and Impact of Whey Protein Supplementation in Army Initial Entry Training Soldiers: A Double-Blind Placebo-Controlled Study

Training civilians to be soldiers is a challenging task often resulting in musculoskeletal injuries, especially bone stress injuries. This study evaluated bone health biomarkers (P1NP/CTX) and whey protein or carbohydrate supplementations before and after Army initial entry training (IET). Ninety ma...

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Main Authors: JoEllen M. Sefton, Kaitlin D. Lyons, Darren T. Beck, Cody T. Haun, Matthew A. Romero, Petey W. Mumford, Paul A. Roberson, Kaelin C. Young, Michael D. Roberts, Jeremy S. McAdam
Format: Article
Language:English
Published: MDPI AG 2020-07-01
Series:Nutrients
Subjects:
Online Access:https://www.mdpi.com/2072-6643/12/8/2225
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author JoEllen M. Sefton
Kaitlin D. Lyons
Darren T. Beck
Cody T. Haun
Matthew A. Romero
Petey W. Mumford
Paul A. Roberson
Kaelin C. Young
Michael D. Roberts
Jeremy S. McAdam
author_facet JoEllen M. Sefton
Kaitlin D. Lyons
Darren T. Beck
Cody T. Haun
Matthew A. Romero
Petey W. Mumford
Paul A. Roberson
Kaelin C. Young
Michael D. Roberts
Jeremy S. McAdam
author_sort JoEllen M. Sefton
collection DOAJ
description Training civilians to be soldiers is a challenging task often resulting in musculoskeletal injuries, especially bone stress injuries. This study evaluated bone health biomarkers (P1NP/CTX) and whey protein or carbohydrate supplementations before and after Army initial entry training (IET). Ninety male IET soldiers participated in this placebo-controlled, double-blind study assessing carbohydrate and whey protein supplementations. Age and fat mass predicted bone formation when controlling for ethnicity, explaining 44% (<i>p</i> < 0.01) of bone formation variations. Age was the only significant predictor of bone resorption (<i>p</i> = 0.02) when controlling for run, fat, and ethnicity, and these factors together explained 32% of the variance in bone resorption during week one (<i>p</i> < 0.01). Vitamin D increased across training (<i>p</i> < 0.01). There was no group by time interaction for supplementation and bone formation (<i>p</i> = 0.75), resorption (<i>p</i> = 0.73), Vitamin D (<i>p</i> = 0.36), or calcium (<i>p</i> = 0.64), indicating no influence of a supplementation on bone biomarkers across training. Age, fitness, fat mass, and ethnicity were important predictors of bone metabolism. The bone resorption/formation ratio suggests IET soldiers are at risk of stress injuries. Male IET soldiers are mildly to moderately deficient in vitamin D and slightly deficient in calcium throughout training. Whey protein or carbohydrate supplementations did not affect the markers of bone metabolism.
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spelling doaj.art-f15ed4e6ea5f4f239c1ab9c27f8621752023-11-20T08:01:03ZengMDPI AGNutrients2072-66432020-07-01128222510.3390/nu12082225Markers of Bone Health and Impact of Whey Protein Supplementation in Army Initial Entry Training Soldiers: A Double-Blind Placebo-Controlled StudyJoEllen M. Sefton0Kaitlin D. Lyons1Darren T. Beck2Cody T. Haun3Matthew A. Romero4Petey W. Mumford5Paul A. Roberson6Kaelin C. Young7Michael D. Roberts8Jeremy S. McAdam9Warrior Research Center, School of Kinesiology, 301 Wire Road, Auburn University, Auburn, AL 36849-5323, USAWarrior Research Center, School of Kinesiology, 301 Wire Road, Auburn University, Auburn, AL 36849-5323, USAMolecular and Applied Sciences Laboratory, School of Kinesiology, 301 Wire Road, Auburn University, Auburn, AL 36849-5323, USAMolecular and Applied Sciences Laboratory, School of Kinesiology, 301 Wire Road, Auburn University, Auburn, AL 36849-5323, USAMolecular and Applied Sciences Laboratory, School of Kinesiology, 301 Wire Road, Auburn University, Auburn, AL 36849-5323, USAMolecular and Applied Sciences Laboratory, School of Kinesiology, 301 Wire Road, Auburn University, Auburn, AL 36849-5323, USAMolecular and Applied Sciences Laboratory, School of Kinesiology, 301 Wire Road, Auburn University, Auburn, AL 36849-5323, USAMolecular and Applied Sciences Laboratory, School of Kinesiology, 301 Wire Road, Auburn University, Auburn, AL 36849-5323, USAMolecular and Applied Sciences Laboratory, School of Kinesiology, 301 Wire Road, Auburn University, Auburn, AL 36849-5323, USAWarrior Research Center, School of Kinesiology, 301 Wire Road, Auburn University, Auburn, AL 36849-5323, USATraining civilians to be soldiers is a challenging task often resulting in musculoskeletal injuries, especially bone stress injuries. This study evaluated bone health biomarkers (P1NP/CTX) and whey protein or carbohydrate supplementations before and after Army initial entry training (IET). Ninety male IET soldiers participated in this placebo-controlled, double-blind study assessing carbohydrate and whey protein supplementations. Age and fat mass predicted bone formation when controlling for ethnicity, explaining 44% (<i>p</i> < 0.01) of bone formation variations. Age was the only significant predictor of bone resorption (<i>p</i> = 0.02) when controlling for run, fat, and ethnicity, and these factors together explained 32% of the variance in bone resorption during week one (<i>p</i> < 0.01). Vitamin D increased across training (<i>p</i> < 0.01). There was no group by time interaction for supplementation and bone formation (<i>p</i> = 0.75), resorption (<i>p</i> = 0.73), Vitamin D (<i>p</i> = 0.36), or calcium (<i>p</i> = 0.64), indicating no influence of a supplementation on bone biomarkers across training. Age, fitness, fat mass, and ethnicity were important predictors of bone metabolism. The bone resorption/formation ratio suggests IET soldiers are at risk of stress injuries. Male IET soldiers are mildly to moderately deficient in vitamin D and slightly deficient in calcium throughout training. Whey protein or carbohydrate supplementations did not affect the markers of bone metabolism.https://www.mdpi.com/2072-6643/12/8/2225biomarkerbone injuryinjury preventionmilitary trainingmusculoskeletal injurystress fracture
spellingShingle JoEllen M. Sefton
Kaitlin D. Lyons
Darren T. Beck
Cody T. Haun
Matthew A. Romero
Petey W. Mumford
Paul A. Roberson
Kaelin C. Young
Michael D. Roberts
Jeremy S. McAdam
Markers of Bone Health and Impact of Whey Protein Supplementation in Army Initial Entry Training Soldiers: A Double-Blind Placebo-Controlled Study
Nutrients
biomarker
bone injury
injury prevention
military training
musculoskeletal injury
stress fracture
title Markers of Bone Health and Impact of Whey Protein Supplementation in Army Initial Entry Training Soldiers: A Double-Blind Placebo-Controlled Study
title_full Markers of Bone Health and Impact of Whey Protein Supplementation in Army Initial Entry Training Soldiers: A Double-Blind Placebo-Controlled Study
title_fullStr Markers of Bone Health and Impact of Whey Protein Supplementation in Army Initial Entry Training Soldiers: A Double-Blind Placebo-Controlled Study
title_full_unstemmed Markers of Bone Health and Impact of Whey Protein Supplementation in Army Initial Entry Training Soldiers: A Double-Blind Placebo-Controlled Study
title_short Markers of Bone Health and Impact of Whey Protein Supplementation in Army Initial Entry Training Soldiers: A Double-Blind Placebo-Controlled Study
title_sort markers of bone health and impact of whey protein supplementation in army initial entry training soldiers a double blind placebo controlled study
topic biomarker
bone injury
injury prevention
military training
musculoskeletal injury
stress fracture
url https://www.mdpi.com/2072-6643/12/8/2225
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