NCT02327208

Lean Body Mass Response to Higher-protein Diets During Winter Military Training

Effects of Carbohydrate and Protein Supplementation on Whole-body Protein Balance and Skeletal Muscle Mass During Winter Military Training: a Randomized Controlled Trial

• Status: Completed
• Phase: N/A
• Study type: Interventional
• Enrollment: 73 (actual)
• Sponsor: United States Army Research Institute of Environmental Medicine · Federal
• Sex: All
• Age: 18 Years
• Healthy volunteers: Accepted

Summary

The objectives of this study are to: 1) determine effects of a prototype recovery food product providing supplemental energy on whole-body protein balance, skeletal muscle mass, and biomarkers of physiological status and strain during winter military training, and 2) determine the extent to which varying macronutrient composition (protein-based \[PRO\] versus carbohydrate-based \[CHO\]) of the food product modulates the physiological consequences to strenuous military training.

Detailed description

Up to 120 Norwegian Soldiers from the 2nd Battalion, Brigade North, Norwegian Army stationed at Skjold Garrison will be enrolled in a 9-day, randomized controlled study. Using dietary analysis, body composition assessments, stable isotope methodologies, basic biochemical techniques, and measures of physiological strain, the effects of supplemental energy in the form of carbohydrate and protein on indices of muscle mass and physiological status will be assessed. We hypothesize that consuming supplemental energy will attenuate the effects of severe energy deficit on inflammation, androgenic hormones, and whole-body protein retention, thereby protecting skeletal muscle mass. We expect that consuming PRO will promote a more favorable recovery than consuming CHO, as indicated by measures of increased whole-body protein synthesis and greater conservation of skeletal muscle mass.

Conditions

• Body Weight

Interventions

Type	Name	Description
DIETARY_SUPPLEMENT	Control
DIETARY_SUPPLEMENT	Protein
DIETARY_SUPPLEMENT	Carbohydrate

Timeline

• Start date: 2015-01-01
• Primary completion: 2015-02-01
• Completion: 2015-02-01
• First posted: 2014-12-30
• Last updated: 2017-07-21

Locations

3 sites across 2 countries: United States, Norway