Nutritional Intervention for Age-related Muscular Function and Strength Losses-Study 2
| Status: | Completed |
|---|---|
| Conditions: | Orthopedic |
| Therapuetic Areas: | Orthopedics / Podiatry |
| Healthy: | No |
| Age Range: | 60 - Any |
| Updated: | 2/13/2019 |
| Start Date: | August 2014 |
| End Date: | February 4, 2019 |
Year-long Double Blind Study on the Efficacy of a Combination of Beta-hydroxy-beta-methylbutyrate and Vitamin D With and Without Exercise on Muscular Strength and Functionality in Older Adults.
Men and women lose muscle mass and strength with age. Loss of muscle mass and strength is
accompanied by a loss of muscle function which can lead to diminished quality of life and
more importantly can lead to serious fall requiring medical treatment. The investigators
hypothesize that the combined supplements of Calcium-HMB and Vitamin D will lead to decreased
falls and to improved quality of life (QOL) for older adults. The investigators further
hypothesize that the addition of a modest exercise regimen to these supplements will enhance
the synergistic effects of both Calcium-HMB and Vitamin D.
Subjects will consume the dietary supplement 2 times per day for 12 months. Tests will
consist of the following: a) strength of subjects' legs and elbow by Isokinetic Dynamometer;
b) body composition; c) hand-grip strength by hand-grip dynamometer; d) functional mobility,
balance and agility (Get-Up and Get-Up-and-Go tests); e) filling out questionnaires; and g)
having blood drawn for biochemical measurements. Testing will be performed at the baseline (0
months) and at 3, 6, 9, and 12 months.
accompanied by a loss of muscle function which can lead to diminished quality of life and
more importantly can lead to serious fall requiring medical treatment. The investigators
hypothesize that the combined supplements of Calcium-HMB and Vitamin D will lead to decreased
falls and to improved quality of life (QOL) for older adults. The investigators further
hypothesize that the addition of a modest exercise regimen to these supplements will enhance
the synergistic effects of both Calcium-HMB and Vitamin D.
Subjects will consume the dietary supplement 2 times per day for 12 months. Tests will
consist of the following: a) strength of subjects' legs and elbow by Isokinetic Dynamometer;
b) body composition; c) hand-grip strength by hand-grip dynamometer; d) functional mobility,
balance and agility (Get-Up and Get-Up-and-Go tests); e) filling out questionnaires; and g)
having blood drawn for biochemical measurements. Testing will be performed at the baseline (0
months) and at 3, 6, 9, and 12 months.
Inclusion Criteria:
- Male and female subjects will be enrolled into the study.
- Age > 60 years.
- Free of liver and kidney diseases, and with no evidence of uncontrolled hypertension.
- Does not have a chronic disease that affects calcium or bone metabolism (i.e., asthma
with chronic use of high dose steroids, inflammatory bowel disease, Crohn's disease,
primary hyperparathyroidism, seizure disorder with use of phenobarbital, etc.).
- Not classified as morbidly obese (body mass index (BMI) >40 kg/m2).
- Six weeks since major surgery (three weeks since minor surgery).
- Willing to consume one of the nutritional supplements for the study period.
- Individuals diagnosed with osteoporosis, or bone density > 2.0 standard deviations
below the mean, will not be enrolled in the study.
- No other serious medical illness.
- Serum 25OH-vitD3 >15 ng/ml.
- Willing to participate in 3-day-a-week monitored strength-training program.
- Physician has placed no restriction on physical exercise.
Exclusion Criteria:
- Age < 60 years.
- Evidence of liver and kidney diseases, uncontrolled hypertension, or Type I diabetes
mellitus requiring insulin for glucose control.
- Presence of a chronic disease that affects calcium or bone metabolism (i.e., asthma
with chronic use of high dose steroids, inflammatory bowel disease, Crohn's disease,
primary hyperparathyroidism, seizure disorder with use of phenobarbital, etc.).
- Classified as morbidly obese (body mass index (BMI) >40 kg/m2).
- Less than six weeks since major surgery or three weeks since minor surgery.
- Not willing to consume one of the nutritional supplements for the study period.
- Individuals diagnosed with osteoporosis, or a bone density > 2.0 standard deviations
below the mean, will not be enrolled in the study.
- Other serious medical illness, which the subject's doctor or medical review team has
decided affects the subject's ability to participate in the study.
- History of blood clots and/or the use of blood thinning medications
- Subjects on high dose vitamin D therapies (i.e. 50,000 IU vitamin D).
- Subjects with serum 25OH-vitD3 <10 ng/ml will be considered deficient and will be
referred to their physician for treatment.
- Subjects with serum 25OH-vitD3 >30 ng/ml may not respond to the intervention as
expected and will also be excluded from the study.
- Not able or willing to participate in 3-day-a-week monitored strength-training
program.
- Physician has placed a restriction on physical exercise.
We found this trial at
1
site
Ames, Iowa 50010
Principal Investigator: Rick L Sharp, PhD
Phone: 515-294-8650
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