Sarcopenia
Conditions
Brief summary
This research study was conducted to investigate the effects of a high protein diet on the efficiency of energy use at rest and at low-levels of physical activity. The hypothesis was that a high intake of dietary protein would result in a less efficient use of energy in skeletal muscle in older adults.
Detailed description
This research study was conducted to investigate the effects of a high protein diet on the efficiency of energy use at rest and at low-levels of physical activity. The hypothesis was that a high intake of dietary protein would result in a less efficient use of energy in skeletal muscle in older adult
Interventions
DIETARY_SUPPLEMENTWhey protein supplementation
subjects are asked to consume a smoothie with whey protein added
DIETARY_SUPPLEMENTCarbohydrate (polycose) supplementation
Subjects are asked to consume a beverage with polycose added
Sponsors
Purdue University
Study design
Allocation
RANDOMIZED
Intervention model
CROSSOVER
Masking
SINGLE (Subject)
Eligibility
Sex/Gender
ALL
Age
65 Years to No maximum
Healthy volunteers
Yes
Inclusion criteria
* 65 years and older
Exclusion criteria
* Diabetic * Acute symptoms of cardiovascular disease or congestive heart failure * uncontrolled hypertension * supplemental oxygen consumption at rest or during exercise * lactose intolerance * inability to ride a stationary cycle
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Dietary protein effects on muscle energy use | participants will be measured over an average of 26 days | gross mechanical efficiency of muscle, consuming high and low protein supplements |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Effect of protein supplements on food intake | participants will be measured over an average of 26 days | effects of high protein or high carbohydrate supplements on overall energy consumption in older adults. |
Countries
United States
Outcome results
None listed