Independent and Combined Effects of Resistance Exercise Training and β-hydroxy β-methylbutyrate Plus Vitamin D

NCT ID: NCT03848741

Last Updated: 2019-07-17

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

UNKNOWN

Clinical Phase

NA

Total Enrollment

48 participants

Study Classification

INTERVENTIONAL

Study Start Date

2019-04-01

Study Completion Date

2021-04-30

Brief Summary

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During middle-age, humans begin to lose muscle mass and strength. With increasing age the deterioration of muscle health is associated with a decline in quality of life and the loss of independence. β-hydroxy β-methylbutyrate (HMB) plus Vitamin D (VitD) have been proposed to increase skeletal muscle mass, contractile function and improve body composition but has yet to be evaluated in middle-aged women. The overall goal of this study is to determine the effects of HMB +VitD supplementation during 12 weeks of resistance exercise training or a non-exercise control on body composition, skeletal muscle size, and skeletal muscle function in middle-aged women.

Detailed Description

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To determine if HMB+VitD supplementation is an effective strategy to help prevent the loss of skeletal muscle size, skeletal muscle function and body composition in middle-aged women, forty eight women (45-60 yrs old) will be recruited to complete a 12-week intervention (n=12 per group; 4 groups). Participants will be randomized to complete a non-exercise control period or a resistance exercise training program. In a double-blinded fashion, participants in the non-exercise or resistance exercise groups will be randomized to consume either placebo or HMB+VitD. Before and after each intervention the investigators will evaluate skeletal muscle size, skeletal muscle function, and body composition.

Conditions

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Aging Skeletal Muscle

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Participants will be randomized to 1 of 4, 12-week interventions. In a double-blinded fashion, participants will be randomized to consume either placebo or HMB + VitD supplementation.

Group 1 will serve as a non-exercise control with placebo; Group 2 will serve as a non-exercise control with β-hydroxy β-methylbutyrate + Vitamin D; Group 3 will complete resistance exercise training with placebo; Group 4 will complete resistance exercise training with β-hydroxy β-methylbutyrate + Vitamin D
Primary Study Purpose

BASIC_SCIENCE

Blinding Strategy

TRIPLE

Participants Investigators Outcome Assessors

Study Groups

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Non-exercise control with placebo

Participants will be asked to maintain their normal physical activity and dietary habits during the 12-week intervention. Physical activity, diet, urine and blood samples will be collected every 4 weeks. Each participant will consume 3 placebo capsules (calcium lactate), twice a day with a meal or snack for a total of 6 capsules per day. Placebo capsules match the size, color, weight, and number of capsules per dose compared to the β-hydroxy β-methylbutyrate (HMB) Plus Vitamin D (VitD) capsules.

Group Type PLACEBO_COMPARATOR

Non-Exercise Control

Intervention Type BEHAVIORAL

Participants will not perform structured exercise and will continue with their normal physical activity for 12-weeks.

Placebo

Intervention Type DIETARY_SUPPLEMENT

Participants will be given placebo capsules to consume for 12-weeks.

Non-exercise control with HMB+VitD

Participants will be asked to maintain their normal physical activity and dietary habits during the 12-week intervention. Physical activity, diet, urine and blood samples will be collected every 4 weeks. Each participant will consume 3 HMB+VitD capsules, twice a day with a meal or snack for a total of 6 capsules per day. Each capsule contains 500 mg calcium HMB and 333.33 IU Vitamin D for a total of 3.0 g HMB and 2000 IU Vitamin D per day.

Group Type EXPERIMENTAL

Non-Exercise Control

Intervention Type BEHAVIORAL

Participants will not perform structured exercise and will continue with their normal physical activity for 12-weeks.

HMB+VitD

Intervention Type DIETARY_SUPPLEMENT

Participants will be given HMB+VitD capsules to consume for 12-weeks

Resistance exercise training with placebo

Participants will complete 12-weeks (3 days per week) of a whole-body progressive resistance exercise training program. Physical activity, diet, urine and blood samples will be collected every 4 weeks. Each participant will consume 3 placebo capsules (calcium lactate), twice a day with a meal or snack for a total of 6 capsules per day. Participants will be asked to take capsules \~30-60 minutes before resistance exercise. Placebo capsules match the size, color, weight, and number of capsules per dose compared to the HMB + VitD capsules.

Group Type ACTIVE_COMPARATOR

Resistance Exercise Training

Intervention Type BEHAVIORAL

Participants will complete a 12-week whole-body progressive resistance exercise training program.

Placebo

Intervention Type DIETARY_SUPPLEMENT

Participants will be given placebo capsules to consume for 12-weeks.

Resistance exercise training with HMB+VitD

Participants will complete 12-weeks (3 days per week) of a whole-body progressive resistance exercise training program. Physical activity, diet, urine and blood samples will be collected every 4 weeks. Each participant will consume 3 HMB+VitD capsules, twice a day with a meal or snack for a total of 6 capsules per day. Participants will be asked to take capsules \~30-60 minutes before resistance exercise. Each capsule contains 500 mg calcium HMB and 333.33 IU Vitamin D for a total of 3.0 g HMB and 2000 IU Vitamin D per day.

Group Type EXPERIMENTAL

Resistance Exercise Training

Intervention Type BEHAVIORAL

Participants will complete a 12-week whole-body progressive resistance exercise training program.

HMB+VitD

Intervention Type DIETARY_SUPPLEMENT

Participants will be given HMB+VitD capsules to consume for 12-weeks

Interventions

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Non-Exercise Control

Participants will not perform structured exercise and will continue with their normal physical activity for 12-weeks.

Intervention Type BEHAVIORAL

Resistance Exercise Training

Participants will complete a 12-week whole-body progressive resistance exercise training program.

Intervention Type BEHAVIORAL

Placebo

Participants will be given placebo capsules to consume for 12-weeks.

Intervention Type DIETARY_SUPPLEMENT

HMB+VitD

Participants will be given HMB+VitD capsules to consume for 12-weeks

Intervention Type DIETARY_SUPPLEMENT

Eligibility Criteria

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Inclusion Criteria

* Women between 45 and 60 years old
* Women with a BMI \< 35 kg/m2
* Sedentary (\< 30 minutes of structured physical activity 3 times per week)
* Weight stable for 3 months prior (+/- 5kg)

Exclusion Criteria

* Body mass index \> 35 kg/m2
* Type 1 or Type 2 diabetes
* Uncontrolled hypertension
* Active cancer, cancer in remission, or having received treatment for any form of cancer in the previous 5 years
* Cardiovascular disease (e.g., peripheral artery disease and peripheral vascular disease)
* Uncontrolled thyroid function
* Chronic and/or regular consumption of medication known to influence skeletal muscle metabolism
* Use of Vitamin D (\>2000 IU) or β-hydroxy β-methylbutyrate
* Tobacco use
* Any condition that limits exercise training (e.g., chronic obstructive pulmonary disease, neuromuscular disorder, moderate or severe cognitive impairment, Alzheimer's disease, vertigo, dizziness)
* High alcohol consumption defined as more than 8 drinks per week for women
* Unwilling to undergo any study-related procedures
* Pregnancy
* Abnormal liver or kidney enzymes determined in blood chemistry panel
* Bleeding/clotting disorders or blood thinning medications (e.g., warfarin, heparin)
Minimum Eligible Age

45 Years

Maximum Eligible Age

60 Years

Eligible Sex

FEMALE

Accepts Healthy Volunteers

Yes

Sponsors

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Metabolic Technologies Inc.

INDUSTRY

Sponsor Role collaborator

University of Illinois at Urbana-Champaign

OTHER

Sponsor Role lead

Responsible Party

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Adam Konopka

Assistant Professor

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Adam Konopka, PhD

Role: PRINCIPAL_INVESTIGATOR

University of Illinois at Urbana-Champaign

Locations

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Freer Hall

Urbana, Illinois, United States

Site Status RECRUITING

Countries

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United States

Central Contacts

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Adam Konopka, PhD

Role: CONTACT

1 217 300 5844

Alexander Nichol, MS

Role: CONTACT

1 708 903 1720

Facility Contacts

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Adam Konopka

Role: primary

217-300-5844

Other Identifiers

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093635

Identifier Type: -

Identifier Source: org_study_id

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