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

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

73 participants

Study Classification

INTERVENTIONAL

Study Start Date

2015-01-31

Study Completion Date

2015-02-28

Brief Summary

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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.

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Detailed Description

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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

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Body Weight

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

BASIC_SCIENCE

Blinding Strategy

TRIPLE

Participants Investigators Outcome Assessors

Study Groups

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Control

3 Combat rations only per day. No additional experimental food items (those assigned to the active comparator groups will consume isoenergetic carbohydrate and protein-based food products).

Group Type PLACEBO_COMPARATOR