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SarcopeniaNDCNCT01062711

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

A study testing Whey or soy protein in people with Sarcopenia, run by McMaster University at 1 site in Canada.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial 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. Read more about this study

Who is it for?
Ages 60 to 80 years, men onlyHealthy volunteers can take part
Conditions the study is for
Sarcopenia
What is being tested?
Whey or soy protein
Could I receive a placebo?
No, everyone receives an active treatment
How many people
81 participants
Where
1 siteCanada
Study dates
Jul 2008to May 2011
Phase
Interventional
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 60 to 80 years
  • Men only
  • Healthy volunteers accepted
  • Adult, Older adult

Who may be able to join

  • Male
  • Aged 60 to 80 years old
  • Non-smoker
  • Generally healthy and can tolerate the resistance exercise and protein drink

Who cannot join

  • Allergies to whey, casein or soy
  • Health problems such as: heart disease, rheumatoid arthritis of the knee joint, diabetes, poor lung function, uncontrolled hypertension, or any health conditions that might put participants at risks for this study
  • Failed clearance for exercise participation by their medical doctor
  • Failed an exercise stress test
  • Taking metformin and/or other medications for the control of blood glucose even though one might not be classified as diabetic
  • Taking prescribed blood thinners such as warfarin and heparin but excluding aspirin
  • Taking medications for lung and kidney conditions but excluding medication for asthma that is under control

Trial locations and contacts

1 site in 1 country.

Canada1 site
  • McMaster University

    Hamilton, Ontario, L8S 4K1

Other trials in Canada

About this study

Official title: Responses of Muscle and Whole-body Protein Turnover to Ingestion of Differing Doses of Whey and Soy Protein With and Without Resistance Exercise in Elderly Men

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
Sarcopenia
Being tested
Whey or soy protein
Keywords
sarcopenia, muscle, protein, muscle protein synthesis, muscle protein breakdown, whey, soy, casein, dose response, resistance exercise, unilateral, knee extension, whole body protein
Medical subject headings
Sarcopenia

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Whey or soy proteinDietary supplement

    Whey and casein are isolated milk proteins

Study groups in NCT01062711
Study groupRoleWhat they receive
Control group 0 g proteinOtherControl group in which a placebo drink containing no protein is given following unilateral knee extension exercise
Receives: Dietary Supplement: Whey or soy protein
10g wheyExperimental10g whey protein given following unilateral knee extension exercise
Receives: Dietary Supplement: Whey or soy protein
20g wheyExperimental20g whey protein given following unilateral knee extension exercise
Receives: Dietary Supplement: Whey or soy protein
30g wheyExperimental30g whey protein given following unilateral knee extension exercise
Receives: Dietary Supplement: Whey or soy protein
40g wheyExperimental40g whey protein given following unilateral knee extension exercise
Receives: Dietary Supplement: Whey or soy protein
20g soyExperimental20g soy protein given following unilateral knee extension exercise
Receives: Dietary Supplement: Whey or soy protein
40g soyExperimental40g soy protein given following unilateral knee extension exercise
Receives: Dietary Supplement: Whey or soy protein

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Muscle protein synthesis

    Measured: Acute within the day

  2. whole body amino acid oxidation

    Measured: acute within the day

Secondary outcomes (3)
  1. muscle protein breakdown

    Measured: Acute within the day

  2. serum insulin

    Measured: acute within the day

  3. plasma amino acid concentrations

    Measured: acute within the day

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted4 Feb 2010 (estimated)
  2. Study startJul 2008
  3. Primary completionDec 2010
  4. Study completionMay 2011

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Prevention
Allocation
Randomised
Intervention model
Parallel groups
Masking
Single blind
Who is masked
Participant
Enrolment
81 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01062711
Sponsor's protocol ID
DMI 1484
Acronym
NDC
Status last verified
Jul 2011
First submitted
3 Feb 2010
Last updated
20 Jul 2011
Results posted
No
Data monitoring committee
No

Questions about this trial

What is this clinical trial studying?

A study testing Whey or soy protein in people with Sarcopenia, run by McMaster University at 1 site in Canada.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 4 inclusion and 7 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 20 Jul 2011. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Canada. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Muscle protein synthesis (time frame: Acute within the day). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 20 Jul 2011; AzTrials last refreshed its copy on 7 Nov 2026.

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