Mobility Limitation Clinical Trial
— OPTIMenOfficial title:
Optimizing Protein Intake in Older Americans With Mobility Limitations
Verified date | July 2021 |
Source | Brigham and Women's Hospital |
Contact | n/a |
Is FDA regulated | No |
Health authority | |
Study type | Interventional |
This will be a randomized, placebo-controlled, parallel group, double blind, clinical trial in community dwelling, older men, 65 years of age or older, who have mobility limitation and low protein intake. The study will have a 2 X 2 factorial design, which will allow us to investigate the effects of dietary protein intake and testosterone separately and together.
Status | Completed |
Enrollment | 92 |
Est. completion date | January 19, 2017 |
Est. primary completion date | January 19, 2017 |
Accepts healthy volunteers | No |
Gender | Male |
Age group | 65 Years and older |
Eligibility | Inclusion Criteria: 1. Community-dwelling men 65 years of age or older 2. A score of 3-10 on the short physical performance battery (SPPB) 3. Daily protein intake less than the recommended daily allowance of 0.83 g/kg/day (from 3 24-hour food recalls) 4. Able to give informed consent Exclusion Criteria: 1. History of prostate or breast cancer 2. American Urological Association [AUA] symptom index score of >19 3. Prostate specific antigen (PSA) >4 ng/ml in White men or >3 ng/ml in Black men 4. Prostate specific antigen (PSA) > 4 ng/ml in non-Black men or >3 ng/ml in Black men. These subjects may be enrolled if they have a negative transrectal biopsy within the past year. 5. Myocardial infarction or stroke within the last 6 months 6. Uncontrolled congestive heart failure, based on the study physician's evaluation 7. Serum creatinine > 2.0 mg/dL; men on any kind of dialysis will be excluded. 8. History of celiac disease, Crohn's disease, or ulcerative colitis 9. History of any malignancy requiring treatment within the previous 2 years, except non-melanic skin cancers. Men with cancers who have not required active treatment within the past two years and who have not had disease recurrence within the past two years may be enrolled at the discretion of the study physician. 10. Neuromuscular diseases: motor neuron diseases, multiple sclerosis, adult muscular dystrophies, and myasthenia gravis 11. History of stroke with residual limb weakness that affected the individual's ability to walk; subjects with history of stroke who do not have residual limb weakness may be enrolled. 12. Schizophrenia, bipolar disorder, or untreated diagnosed depression. Subjects with unipolar depression who are on an antidepressant medication are eligible. 13. TSH levels <0.4 or >5 mlU/L 14. Systolic blood pressure (BP) >160 or diastolic BP >100 mm Hg (average of 2 measurements taken at Visit 1) 15. Hemoglobin A1c >8.0% or taking insulin. Men with diabetes mellitus whose A1C is less than 8.0% or who are not taking insulin will be eligible. 16. Mini-Mental Status Exam [MMSE] <24 17. Body mass index (BMI) less than 20 or greater than 40 kg/m2 18. Not willing to eat all of the following: red meat, eggs, poultry, fish and shellfish 19. Allergy to sesame, peanuts, soy, gluten or shellfish 20. Current alcohol use >21 drinks/week based on self-report 21. Confinement to a wheelchair 22. Use of anabolic therapies (Testosterone, DHEA, androstenedione, rhGH) within the past year 23. Current use of levodopa or anticoagulants 24. Current enrollment in a structured weight management program or participation in any weight intervention studies in the last 90 days 25. Serum ALT and AST greater than 3 x upper limit of normal 26. Hematocrit < 30% or >48% 27. Subject is not able to eat 3 frozen study meals per day for 6 months 28. Subject is unwilling to stop current nutritional supplements 29. Progressive intensive resistance training within 12 weeks of screening 30. Non-compliant with run-in diet and/or supplement |
Country | Name | City | State |
---|---|---|---|
United States | Brigham and Women's Hospital | Boston | Massachusetts |
Lead Sponsor | Collaborator |
---|---|
Brigham and Women's Hospital | National Institute on Aging (NIA) |
United States,
Type | Measure | Description | Time frame | Safety issue |
---|---|---|---|---|
Primary | Change in Lean Body Mass as Measured by Dual Energy X-ray Absorptiometry (DXA) | Primary outcome is change in lean body mass, measured by dual energy X-ray absorptiometry (DXA) | 6 months from baseline | |
Secondary | Change of Maximal Voluntary Strength | Tests of Muscle Performance: (1) Maximal voluntary strength measured by 1-repetition maximum method in leg press; (2) Maximal voluntary strength in chest press; this exercise was chosen because it involves the large muscle groups of the upper extremities. | 6 months from baseline | |
Secondary | Change of Leg Press Power | Muscle Performance measured using Power of hip and knee extension by Bassey's leg rig. | 6 months from baseline | |
Secondary | Change of 6-minute Walking Distance | Tests of Physical Function and Task-Specific Performance measured by 6-min walking distance | 6 months from baseline | |
Secondary | Change of Stair Climbing Tests | Tests of Physical Function and Task-Specific Performance measured by Stair-climbing power +/- 20% load carry. Physical Function was evaluated using two tests of stair climb power using an indoor 12-step staircase. One test consisted of ascending the 12-steps as rapidly as possible without running (unloaded stair climb) while the second test required participants to carry a load equivalent to 20% of their baseline body weight evenly distributed in two canvas tote bags (loaded stair climb). Time to ascend the stairs was measured electronically with a digital clock and switch mats placed at the base of the steps and on the 12th step. Power in watts is calculated by the following: [body weight (kilograms) * distance (meters)/ (time/60)] /6.12. | 6 months from baseline | |
Secondary | Change of 50-meter Loaded Walking Test | Tests of Physical Function and Task-Specific Performance measured by 50-meter timed walk + 20% load carry. Physical Function was evaluated using test of 50-meter loaded walking speed. The test required participants to carry a load equivalent to 20% of their baseline body weight evenly distributed in two canvas tote bags. Time was measured electronically with a digital clock. Speed in meters per second is calculated by the following: 50/time. | 6 months from baseline | |
Secondary | Change of Self-reported Physical Function Domain of Short Form Health Survey (SF-36) | 36-Item Short Form Health Survey (SF-36) is a set of generic, coherent, and easily administered quality-of-life measures. Physical function domain of the Medical Outcomes Study Short Form-36 (SF-36) contains 10 items with the score range of 0-100. Higher score yields better performance. | 6 months from baseline | |
Secondary | Change of Psychological Well Being Index (PGWBI) | The PGWBI is a 22-item health-related Quality of Life (HRQoL) questionnaire developed in US which produces a self-perceived evaluation of psychological well-being expressed by a summary score. The 22 items are grouped in 6 dimensions. A global score is computed as the sum of all items with range of 0-110. A higher score yields better performance. | 6 months from baseline | |
Secondary | Change of Functional Assessment of Chronic Illness Therapy (FACIT) Fatigue Scale | The FACIT Fatigue Scale is a 13-item questionnaire that measures an individual's level of fatigue during their usual daily activities over the past week. The level of fatigue is measured on a four point scale (4 = not at all fatigued to 0 = very much fatigued). Score ranges 0-52. The higher the score, the better the quality of life. | 6 months from baseline | |
Secondary | Change of Derogatis Affective Balance Scale (DABS) | The Derogatis Affects Balance Scale (DABS) is a multidimensional self-report mood and affects inventory comprised of 40 adjective-items using a 5-point Likert style scale. The DABS global scores consist of the Positive Total score (PTOT), Negative Total score (NTOT), where The Positive Affects Total (PTOT) is defined as the sum of all scores on the four positive affects dimensions of joy, contentment, vigor and affection, ranging 0-80. Similarly, the Negative Affects Total (NTOT) is represented as the sum of scores on the four negative dimensions of anxiety, depression, guilt and hostility, ranging 0-80. The Affects Expressiveness Index (AEI) is defined as the sum total of PTOT and NTOT, ranging 0-160. Higher score yields stronger affective intensity. | 6 months from baseline |
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