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Dose Response of Whey and Soy Protein Ingestion With and Without Resistance Exercise in Elderly Men

NCT01062711 · Status: COMPLETED · Phase: NA · Type: INTERVENTIONAL · Enrollment: 81

Last updated 2011-07-20

No results posted yet for this study

Summary

When we age, we lose muscle. It is not exactly clear why this happens, but we do know that this muscle loss can increase health risks and lead to health problems. Lifting weights (i.e. performing resistance exercise) and proper nutrition, in particular eating enough high quality protein, can help slow the loss of muscle mass or potentially even reverse it. Protein and resistance exercise are thought to do this by stimulating your muscle to make more proteins and/or potentially by slowing down the rate at which your body breaks proteins down. Whey protein is a high quality protein isolated from milk and is known to stimulate new protein synthesis for all proteins in your body. However, to date, the effect that whey protein has on muscle protein synthesis, particularly in the elderly has yet to be determined. Thus the purposes of this study are: 1) to determine if whey is an effective source of protein that will stimulate muscle protein synthesis in the elderly, similar to what we have previously seen in young persons; 2) to determine the smallest amount of whey protein to consume to maximally stimulate your muscle to make new proteins; 3) to see if performing resistance exercise will augment the increase in new muscle protein synthesis with whey consumption; and 4) to try and found out if whey is more effective than soy protein in stimulating new muscle protein synthesis and suppressing muscle protein breakdown in the elderly, similar to what we have previously seen in young persons

Conditions

Interventions

DIETARY_SUPPLEMENT

Whey or soy protein

Whey and casein are isolated milk proteins

Sponsors & Collaborators

Principal Investigators

  • Stuart Phillips, Ph.D. · McMaster University

Study Design

Allocation
RANDOMIZED
Purpose
PREVENTION
Masking
SINGLE
Model
PARALLEL

Eligibility

Min Age
60 Years
Max Age
80 Years
Sex
MALE
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2008-07-31
Primary Completion
2010-12-31
Completion
2011-05-31

Countries

  • Canada

Study Locations

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Diseases
Companies

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 NCT01062711 on ClinicalTrials.gov