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Effects of Short-term Energy Deficit on Muscle Protein Turnover

NCT02406040 · Status: COMPLETED · Phase: NA · Type: INTERVENTIONAL · Enrollment: 24

Last updated 2016-03-16

No results posted yet for this study

Summary

Weight loss through energy restriction results in the loss of both fat and muscle mass. Muscle mass is important for mobility, strength, glucose control and energy expenditure, and therefore the retention of muscle mass during energy restriction is an important goal. The retention of muscle mass depends on the balance between muscle protein synthesis (MPS) and muscle protein breakdown (MPB). It is well known that MPS is reduced during weight loss, however the effect of weight loss on MPB is currently a topic of debate. The purpose of this study is to assess the effect of short-term (10 day) weight loss (40% energy deficit) on both MPS and MPB in order to gain insight into the mechanisms causing muscle loss during energy restriction. In addition, the effect of resistance exercise and protein (both known to preserve muscle mass) on MPS and MPB will be examined

Conditions

Interventions

OTHER

Energy Restriction

All meals will be provided for the duration of the energy restriction intervention and the energy deficit will be calculated based on estimated energy requirements by indirect calorimetry to provide 60% of energy requirements. In addition, one leg will be assigned to perform resistance exercise for 5 days during the 10 day energy deficit.

Sponsors & Collaborators

Principal Investigators

  • Stuart M Phillips, PhD · McMaster University

Study Design

Allocation
RANDOMIZED
Purpose
BASIC_SCIENCE
Masking
SINGLE
Model
PARALLEL

Eligibility

Min Age
20 Years
Max Age
30 Years
Sex
MALE
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2015-06-30
Primary Completion
2016-01-31
Completion
2016-01-31

Countries

  • Canada

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT02406040 on ClinicalTrials.gov