Effect of Exercise With and Without HMB on Body Composition and Muscle Strength in Sickle Cell Anaemia

June 26, 2019 updated by: The University of The West Indies

Effects of β-hydroxy-β-methyl Butyrate Supplementation and Resistance Exercise on Body Composition, Muscle Strength and Protein Oxidation in Sickle Cell Anaemia.

Wasting is a common and significant problem in sickle cell anaemia (SCA) that correlates with poorer clinical outcome such as frequent painful crises, acute chest syndrome and sub normal resistance to infection. Thus, improvement of nutritional status in SCA holds the potential of ameliorating the course of the disease. Elevated haemolysis and its effects are associated with hypermetabolism and have resulted in higher rates of protein breakdown and synthesis, and energy expenditure. Offering more food has not optimized nutritional status and metabolic performance in free-living patients with SCA. Moreover, appetite might be suppressed. Supplementation with β-hydroxy-β-methylbutyrate (HMB), which is produced in the body from leucine, has been shown to have inhibitory effect on protein breakdown and to promote lean tissue synthesis in humans with sarcopenia. Also, HMB has been implicated as an ergogenic tool to promote exercise performance and skeletal muscle hypertrophy. Therefore, the investigators hypothesize that in individuals with SCA, an intervention of resistance exercise with HMB supplement will have a greater enhancing effect on muscle mass and strength compared to receiving resistance exercise without HMB.

Study Overview

Detailed Description

The investigators aim to measure muscle strength, body composition and whole body protein oxidation in two groups of adults with SCA within one week before and after 9 weeks of intervention in a randomized, double blinded study. One group (n =12 ) will receive an intervention of resistance exercise and HMB supplement, and the other group (n=12) will receive resistance exercise and a placebo (maltodextrin). Participants will be assigned a study code and all information and samples will be stored under the assigned code.

Study Type

Interventional

Enrollment (Anticipated)

24

Phase

  • Not Applicable

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

17 years to 33 years (Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • BMI < 18.5 kg/m2

Exclusion Criteria:

  • BMI > 19 kg/m2

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Double

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: exercise combined with β-hydroxy-β-methylbutyrate (HMB)
Resistance Exercise ( 3d/week) and HMB: 3g/d as three 1g capsules orally, for 9 weeks
effect of exercise and an anabolic agent on body composition, muscle strength, phenylalanine and protein oxidation.
Other Names:
  • HMB
Placebo Comparator: exercise combined with placebo
Resistance exercise ( 3d/week) and placebo as 3g/d maltodextrin as three 1g capsules orally, for 9 weeks
Other Names:
  • maltodextrin
effect of exercise and an anabolic agent on body composition, muscle strength, phenylalanine and protein oxidation.
Other Names:
  • HMB

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Body composition assessment using deuterium dilution method
Time Frame: 3 months
Change between baseline and after 3 months of intervention
3 months
Body composition assessment using Dual-energy X-ray absorptiometry
Time Frame: 3 months
Change between baseline and after 3 months of intervention
3 months
Body composition assessment using bioelectrical impedance
Time Frame: 3 months
Change between baseline and after 3 months of intervention
3 months
muscle strength assessment using the 1-repetition maximum method for the lower body (leg extension and or seated leg press) and upper body (bench press, bicep preacher curl)
Time Frame: 3 months
Change between baseline and after 3 months of intervention
3 months
Protein oxidation using established stable isotope tracer method with oral doses of isotopically labelled sodium bicarbonate and phenylalanine
Time Frame: 3 months
Change between baseline and after 3 months of intervention
3 months

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Dietary intake using three 24 h dietary recall before and after intervention
Time Frame: 30 min
Change between baseline and after 3 months of intervention
30 min
Resting metabolic rate using indirect calorimetry before and after intervention
Time Frame: 30 min
Change between baseline and after 3 months of intervention
30 min

Other Outcome Measures

Outcome Measure
Measure Description
Time Frame
Number of participants with intervention-related abnormal laboratory values as assessed by blood haematology (anaemia profile,white blood cells count, platelet count)
Time Frame: 3 months
Three measurements at baseline, mid point of intervention and at end of intervention
3 months
Number of participants with intervention-related abnormal laboratory values as assessed by blood chemistry (liver function and lipid profile)
Time Frame: 3 months
Three measurements at baseline, mid point of intervention and at end of intervention
3 months
Number of participants with intervention-related adverse effect on emotional profile according to the Circumplex Test of emotion questionnaire
Time Frame: weekly for 3 months
Assessment at baseline and at the end of each week during the intervention
weekly for 3 months
Number of participants with intervention-related adverse health effect as assessed by completing a health-related questionnaire
Time Frame: weekly for 3 months
Assessment at baseline and at the end of each week during the intervention
weekly for 3 months

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Investigators

  • Principal Investigator: Asha V Badaloo, PhD, Tropical Metabolism Research Unit, CAIHR, University of the West Indies
  • Study Director: Marvin E Reid, MBBS, PhD, Tropical Metabolism Research Unit, CAIHR, University of the West Indies

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

April 30, 2013

Primary Completion (Actual)

March 7, 2017

Study Completion (Anticipated)

November 15, 2019

Study Registration Dates

First Submitted

April 4, 2019

First Submitted That Met QC Criteria

June 26, 2019

First Posted (Actual)

June 28, 2019

Study Record Updates

Last Update Posted (Actual)

June 28, 2019

Last Update Submitted That Met QC Criteria

June 26, 2019

Last Verified

March 1, 2019

More Information

Terms related to this study

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

No

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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