Muscle Energy Metabolism and Metabolic Flexibility in Older Men and Women
A Pilot Study to Explore Muscle Energy Metabolism and Metabolic Flexibility in Older Men and Women
Study Overview
Status
Status
Conditions
Conditions
Intervention / Treatment
Intervention / Treatment
Study Type
Study Type
Enrollment (Actual)
Enrollment
Phase
Phase
- Not Applicable
Contacts and Locations
Study Locations
-
-
Nebraska
-
Lincoln, Nebraska, United States, 68508
- University of Nebraska
-
-
Participation Criteria
Eligibility Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
- Body mass index (BMI) >20.0 and <39.0 kg/m2
- Ambulatory (may use assistance device e.g., cane, walker)
- Not a current smoker (within past 10 years)
- Low or moderate risk based on the responses from the AHA/ACSM Health/Fitness Facility Preparticipation Screening Questionnaire
- Normal muscle mass and strength/performance or sarcopenia included in low muscle mass and low grip strength
- If on thyroid medication or hormone replacement therapy, has been on a constant dosage for at least 2 months prior to Screening Visit
- Willingness to follow protocol as described
- Voluntarily signed and dated an informed consent form (ICF), approved by an Independent Ethics Committee (IEC)/Institutional Review Board (IRB) prior to any participation in the study
Exclusion Criteria:
- Active/treated disease, under the care of a physician, for the following: metabolic/endocrine (diabetes), hepatic, or renal disease, myocardial infarction, peripheral vascular disease, respiratory or neuromuscular disease
- Participates in a resistance exercise program
- Poor appetite with recent unexplained weight loss over the past 6 months
- Current infection (requiring medication or which might be expected to require hospitalization); has had inpatient surgery, or corticosteroid treatment (excluding topical creams) in the last 3 months or antibiotics in the last 3 weeks.
- Active malignancy, excluding carcinoma in-situ of the cervix, cutaneous malignancies (basal cell carcinoma, squamous cell carcinoma, except melanoma)
- Chronic, contagious, infectious disease, such as active tuberculosis, Hepatitis A, B or C, or HIV
- Taking medications/dietary supplements or substances that could profoundly modulate metabolism in the opinion of the principal investigator or study physician, Exceptions for multi-vitamin/mineral supplement, topical or optical steroids and short-term use (less than two weeks) of dexamethasone
- Allergy or intolerance to any foods
- History of gastrointestinal disease, or surgeries, gastroparesis, or taking medications that are known in the opinion of the PI or study physician to interfere with consumption/digestion/absorption of nutrients
- Eating disorder, severe dementia or delirium, history of significant neurological or psychiatric disorder, alcoholism, substance abuse or other conditions that may interfere with compliance with study protocol procedures in the opinion of the principal investigator or study physician
- Participant in a concomitant AN trial or trial of a non-registered drug (or is within the 30 day follow-up period for such a trial) or that otherwise conflicts with this study unless otherwise approved
Study Plan
How is the study designed?
Design Details
- Primary Purpose: OTHER
- Allocation: NA
- Interventional Model: SINGLE_GROUP
- Masking: NONE
Number of Arms
Arms and Interventions
Participant Group / ArmParticipant Group / Arm |
Intervention / TreatmentIntervention / Treatment |
|---|---|
|
EXPERIMENTAL: Metabolic Flexibility Tests Group
|
Energy Metabolism, Oxygenation, Body Composition, Blood Samples
|
What is the study measuring?
Primary Outcome Measures
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
|---|---|---|
|
Respiratory Quotient
Time Frame: Baseline to 270 minutes
|
Ratio of macronutrient oxidation
|
Baseline to 270 minutes
|
Secondary Outcome Measures
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
|---|---|---|
|
Blood Biochemistries - Glucose
Time Frame: Baseline to 270 minutes
|
Venous blood sample
|
Baseline to 270 minutes
|
|
Blood Biochemistries - Insulin
Time Frame: Baseline to 270 minutes
|
Venous blood sample
|
Baseline to 270 minutes
|
|
Blood Biochemistries - Amino Acids
Time Frame: Baseline to 270 minutes
|
Venous blood sample
|
Baseline to 270 minutes
|
|
Blood Biochemistries - Fatty Acids
Time Frame: Baseline to 270 minutes
|
Venous blood sample
|
Baseline to 270 minutes
|
|
Muscle Oxygenation
Time Frame: Baseline to 270 minutes
|
Near Infrared Spectroscopy
|
Baseline to 270 minutes
|
|
Muscle Fatigue
Time Frame: Baseline to 270 minutes
|
Electromyography
|
Baseline to 270 minutes
|
Collaborators and Investigators
Sponsor
Sponsor
Publications and helpful links
Study record dates
Study Major Dates
Study Start (ACTUAL)
Study Start
Primary Completion (ACTUAL)
Primary Completion
Study Completion (ACTUAL)
Study Completion
Study Registration Dates
First Submitted
First Submitted
First Submitted That Met QC Criteria
First Submitted That Met QC Criteria
First Posted (ACTUAL)
First Posted
Study Record Updates
Last Update Posted (ACTUAL)
Last Update Posted
Last Update Submitted That Met QC Criteria
Last Update Submitted That Met QC Criteria
Last Verified
Last Verified
More Information
Terms related to this study
Other Study ID Numbers
Other Study ID Numbers
- BL39
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
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