NCT06073080

Brief Summary

The current study will determine protein nutritional status (MPS and WBPB) in response to military-relevant sleep loss, and whether an even protein nutrition distribution during recovery optimally supports MPS and WBPB. Adults (n=20) will complete a 7d sleep satiated phase (\~7-9h target/d), a 4d military-relevant sleep restriction phase (\~4h /d), and a 3d recovery phase (\~7-9h target/d) in a randomized, parallel design. During recovery, volunteers will consume 1.6 g protein/kg/d as an even (\~0.4/0.4/0.4/0.4 g/kg) or skewed (\~0.11/0.27/1.15/0.07 g/kg) distribution. Sleep will be monitored throughout the study using wrist actigraphy and diaries. During each phase, integrated daily MPS will be estimated using ingested deuterium oxide, salivary and blood sampling, and muscle biopsies, while WBPB will be estimated using ingested 15-N alanine and urine collections. At the end of each phase, metabolic testing will be used to assess the effects of sleep loss on substrate utilization and include consuming a carbohydrate beverage, serial blood draws, indirect calorimetry, and steady-state aerobic exercise. The knowledge products derived from the proposed effort will be informative to next generation ration development and support military-specific recovery nutrition guidance following operations involving sleep loss.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
20

participants targeted

Target at below P25 for not_applicable

Timeline
Completed

Started Mar 2024

Shorter than P25 for not_applicable

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

October 4, 2023

Completed
6 days until next milestone

First Posted

Study publicly available on registry

October 10, 2023

Completed
5 months until next milestone

Study Start

First participant enrolled

March 21, 2024

Completed
8 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

November 4, 2024

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

November 4, 2024

Completed
Last Updated

January 21, 2026

Status Verified

January 1, 2026

Enrollment Period

8 months

First QC Date

October 4, 2023

Last Update Submit

January 16, 2026

Conditions

Outcome Measures

Primary Outcomes (2)

  • Whole-body Protein Balance

    15N labeled stable isotope

    24 hours

  • Integrated Muscle Protein Synthesis

    deuterium oxide integrated stable isotope

    72 hours

Study Arms (2)

Protein Nutrition Even

EXPERIMENTAL

Volunteers will consume 1.6 g protein/kg/d as an even (\~0.4/0.4/0.4/0.4 g/kg) distribution across breakfast, lunch, dinner, and a snack.

Other: Protein Nutrition During Recovery

Protein Nutrition Skewed

ACTIVE COMPARATOR

Volunteers will consume 1.6 g protein/kg/d as a skewed (\~0.11/0.27/1.15/0.07 g/kg) distribution across breakfast, lunch, dinner, and a snack.

Other: Protein Nutrition During Recovery

Interventions

Dietary Protein Nutrition Distribution

Protein Nutrition EvenProtein Nutrition Skewed

Eligibility Criteria

Age18 Years - 39 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64)

You may qualify if:

  • Adults aged 18 - 39 years
  • Body mass index \< 30.0 kg/m2
  • Self-report weight stable for the past 2 months (± \~3 kg)
  • Healthy without evidence of chronic illness, musculoskeletal injury, or diagnosed sleep disorder (i.e., insomnia) as determined by the USARIEM Office of Medical Support and Oversight (OMSO) or home duty station medical support
  • Self-report participates in aerobic and/or resistance exercise, on average, ≥2 days per week for previous 6 months
  • Willing to refrain from alcohol, smoking/using any nicotine product (includes e-cigarettes, vaping, chewing tobacco), caffeine, and dietary supplements during the intervention periods of the study
  • Supervisor approval for federal civilian employees and non-HRV active duty military personnel
  • Biological females must have normal menstrual cycles between 26-32 days in duration; 5 menstrual cycles within the past 6 months; or able to provide self-report documentation of sustained (i.e., \~ \>3 months) oral/hormonal contraceptive use which contains low-dose estrogen/progesterone to maintain continuous hormonal levels (i.e., IUD or no oral placebos)

You may not qualify if:

  • Metabolic or cardiovascular abnormalities, gastrointestinal disorders (e.g., abnormal blood clotting, kidney disease, diabetes, cardiovascular disease, anemia etc.) as determined by OMSO or home duty station medical support
  • History of complications with lidocaine (or similar local anesthetic)
  • Present condition of substance abuse (e.g., alcoholism, anabolic steroid use etc.) as self-report or determined by OMSO or home duty station medical support
  • Cumulative blood donation of greater than 550mL within 8-wk of beginning scheduled study blood collection
  • Cumulative blood donation of greater than 550mL within 8-wk after completing scheduled study blood collection
  • Pregnant, trying to become pregnant, and/or breastfeeding (results of urine pregnancy test prior to body composition scans and self-report for breastfeeding)
  • Unwilling or unable to consume study diets or foods provided due to personal preference, dietary restrictions, and/or food allergies
  • Unwilling or unable to adhere to study physical restrictions or sleep prescriptions

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

US Army Research Institute of Environmental Medicine

Natick, Massachusetts, 01760, United States

Location

MeSH Terms

Conditions

Sleep Deprivation

Condition Hierarchy (Ancestors)

DyssomniasSleep Wake DisordersNervous System DiseasesNeurologic ManifestationsSigns and SymptomsPathological Conditions, Signs and SymptomsMental Disorders

Study Officials

  • Jess A Gwin, PhD

    United States Army Research Institute of Environmental Medicine

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
NONE
Purpose
OTHER
Intervention Model
PARALLEL
Model Details: Randomized, parallel arm study. All volunteers will complete a sleep satiated phase and sleep restriction phase before randomized allocation to either an even protein nutrition intervention or a skewed protein nutrition intervention during a recovery phase.
Sponsor Type
FED
Responsible Party
SPONSOR

Study Record Dates

First Submitted

October 4, 2023

First Posted

October 10, 2023

Study Start

March 21, 2024

Primary Completion

November 4, 2024

Study Completion

November 4, 2024

Last Updated

January 21, 2026

Record last verified: 2026-01

Data Sharing

IPD Sharing
Will not share

Individual participant data will not be shared.

Locations