Protein Intake and Step Reduction in Older Adults
DRI
Whey Protein Intake in the Amelioration of Skeletal Muscle Quantity and Function During Inactivity in Older Adults
1 other identifier
interventional
32
1 country
1
Brief Summary
Sarcopenia, the loss in muscle mass with age, is associated with several negative health outcomes including cancer, stroke, cardiovascular disease and diabetes. This loss of muscle mass remains relatively steady following 50 years of age however it can be accelerated with periods of disuse associated with hospitalization, fracture or surgery of the hip or simply influenza. Also associated with periods of disuse, is a lack of energy intake as hospitalizations often result in undernourishment. The consumption of protein has been shown to stimulate muscle growth and therefore the investigators are wondering whether it is able to offset the loss of muscle mass associated with disuse. Therefore, the purpose of the study is to examine the effects of protein consumption combined with mild caloric restriction on changes in muscle mass and function during a period of disuse as well as during a period of recovery .
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P25-P50 for not_applicable
Started Mar 2016
1 active site
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
Study Start
First participant enrolled
March 23, 2016
CompletedPrimary Completion
Last participant's last visit for primary outcome
December 15, 2016
CompletedFirst Submitted
Initial submission to the registry
September 12, 2017
CompletedFirst Posted
Study publicly available on registry
September 18, 2017
CompletedStudy Completion
Last participant's last visit for all outcomes
November 1, 2017
CompletedMarch 22, 2018
September 1, 2017
9 months
September 12, 2017
March 20, 2018
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Integrated myofibrillar muscle protein synthesis with use of deuterated water, measured by GCMS
Measured with ingestion of deuterated water, looking at enrichments in total body water versus muscle
5 weeks
Secondary Outcomes (7)
Rockport walk test (submaximal VO2 test)
5 weeks
Marker of systemic inflammation (TNF-a)
5 weeks
Fasted glucose
5 weeks
Fasted insulin
5 Weeks
Timed up and go test
5 weeks
- +2 more secondary outcomes
Study Arms (2)
Whey protein supplement
EXPERIMENTALSupplement will be delivered twice daily (30g per supplement) of whey protein isolate
Collagen peptide supplement
ACTIVE COMPARATORSupplement will be delivered twice daily (30g per supplement) of hydrolyzed collagen peptides.
Interventions
Eligibility Criteria
You may qualify if:
- Free of any chronic conditions
- Non smoker
- Non diabetic
- No consumption of medications known to affect protein metabolism
- No allergies to dairy proteins
- Moderately active (3500-10,000 steps per day)
- No use of a walker or assistive walking device
You may not qualify if:
- Cigarette use, diabetic, non active, use of a walker, consumption of drugs known to affect protein metabolism
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- McMaster Universitylead
- National Dairy Councilcollaborator
Study Sites (1)
Exercise Metabolism Research Laboratory, McMaster Univeristy
Hamilton, Ontario, L8S 4K1, Canada
Related Publications (1)
Oikawa SY, McGlory C, D'Souza LK, Morgan AK, Saddler NI, Baker SK, Parise G, Phillips SM. A randomized controlled trial of the impact of protein supplementation on leg lean mass and integrated muscle protein synthesis during inactivity and energy restriction in older persons. Am J Clin Nutr. 2018 Nov 1;108(5):1060-1068. doi: 10.1093/ajcn/nqy193.
PMID: 30289425DERIVED
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Stuart M Phillips, Ph.D.
McMaster University
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- DOUBLE
- Who Masked
- PARTICIPANT, OUTCOMES ASSESSOR
- Masking Details
- Double blind
- Purpose
- PREVENTION
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
September 12, 2017
First Posted
September 18, 2017
Study Start
March 23, 2016
Primary Completion
December 15, 2016
Study Completion
November 1, 2017
Last Updated
March 22, 2018
Record last verified: 2017-09
Data Sharing
- IPD Sharing
- Will not share