NCT02040727

Brief Summary

This project will evaluate the impact of resistance training on the synthesis and release of hormones and growth factors from the musculoskeletal system and the extent to which the communicative capacity influences glucose homeostasis In turn, the contribution of glucose regulation on the musculoskeletal system will also be evaluated. This small study will serve as a pilot/feasibility study to define a protocol for implementation of a resistance training intervention in the pediatric population. To establish feasibility, this study population is limited to overweight African American boys ages 7-11 years. In light of well-established accolades of resistance training, historical recommendations for avoidance among the pediatric population have deterred implementation of resistance training interventions in young adolescents. However, contemporary data indicating a profound benefit of resistance training to the skeletal system in pre-adolescents has led to the Academy of Sports Medicine, as well as various other pediatric health interest groups, to support supervised programs incorporating resistance training in young children, emphasizing large muscle and core strengthening. To date, such trials have not been conducted in the pediatric population

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
16

participants targeted

Target at below P25 for not_applicable

Timeline
Completed

Started Oct 2013

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

October 1, 2013

Completed
2 months until next milestone

First Submitted

Initial submission to the registry

December 10, 2013

Completed
1 month until next milestone

First Posted

Study publicly available on registry

January 20, 2014

Completed
7 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

September 1, 2014

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

September 1, 2014

Completed
Last Updated

April 17, 2015

Status Verified

April 1, 2015

Enrollment Period

11 months

First QC Date

December 10, 2013

Last Update Submit

April 16, 2015

Conditions

Keywords

MyokinesOsteokinesGlucose homeostasisPuberty

Outcome Measures

Primary Outcomes (4)

  • Fasting plasma FGF-23 concentration

    Fibroblast Growth Factor-23

    0,8,12,16, 24 weeks

  • Fasting serum osteocalcin concentration

    0, 8, 12, 16, 24 weeks

  • Fasting serum insulin concentration

    0, 8, 12, 16, 24 weeks

  • Fasting serum glucose concentration

    0, 8, 12, 16, 24 weeks

Secondary Outcomes (4)

  • Bone mineral content

    0, 12, 24 weeks

  • Muscle strength

    0, 8, 12, 16, 24 weeks

  • Muscle density

    0, 12, 24 weeks

  • Bone stress-strain index

    0, 12, 24 weeks

Other Outcomes (3)

  • Resting energy expenditure

    0, 12, 24 weeks

  • Total fat mass

    0, 12, 24 weeks

  • Total lean mass

    0, 12, 24 weeks

Study Arms (2)

Non-Resistance Trained

ACTIVE COMPARATOR

No Participation in Resistance Training

Behavioral: No Resistance Training

Resistance Trained

EXPERIMENTAL

Participation in Resistance Training

Behavioral: Resistance Training

Interventions

Supervised strength training 3 days per week for 24 weeks

Resistance Trained

No supervised strength training throughout the study

Non-Resistance Trained

Eligibility Criteria

Age7 Years - 12 Years
Sexmale
Healthy VolunteersYes
Age GroupsChild (0-17)

You may qualify if:

  • overweight
  • early pubertal boys (Tanner stage \<3)
  • ages 7-12 years
  • self-identified as Non-Hispanic Black.

You may not qualify if:

  • type 1 or 2 diabetes
  • musculoskeletal disorders
  • disturbances in glucose or lipid metabolism
  • use of thyroid medication, diuretics, beta-blockers, or any medication that potentially could affect body composition, the lipid profile, insulin sensitivity, or blood pressure
  • allergy to EMLA cream
  • history of eating disorders, cancer, kidney disease, endocrinopathy, liver disease, heart disease, or thyroid disease
  • medically determined not to be able to engage in resistance training

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

University of Alabama at Birmingham

Birmingham, Alabama, 35294, United States

Location

Related Publications (1)

  • Hanks LJ, Gutierrez OM, Ashraf AP, Casazza K. Bone Mineral Content as a Driver of Energy Expenditure in Prepubertal and Early Pubertal Boys. J Pediatr. 2015 Jun;166(6):1397-403. doi: 10.1016/j.jpeds.2015.02.054. Epub 2015 Apr 1.

MeSH Terms

Interventions

Resistance Training

Intervention Hierarchy (Ancestors)

Exercise TherapyRehabilitationAftercareContinuity of Patient CarePatient CareTherapeuticsPhysical Therapy ModalitiesPhysical Conditioning, HumanExerciseMotor ActivityMovementMusculoskeletal Physiological PhenomenaMusculoskeletal and Neural Physiological Phenomena

Study Officials

  • Orlando M Gutierrez, MD, MMSc

    University of Alabama at Birmingham

    STUDY DIRECTOR
  • Lynae J Hanks, PhD, RD

    University of Alabama at Birmingham

    PRINCIPAL INVESTIGATOR
  • Krista Casazza, PhD, RD

    University of Alabama at Birmingham

    STUDY DIRECTOR
  • Marcas Bamman, PhD

    University of Alabama at Birmingham

    STUDY DIRECTOR
  • Ambika Ashraf, MD

    University of Alabama at Birmingham

    STUDY CHAIR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
NONE
Intervention Model
SINGLE GROUP
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Post-Doctoral Fellow

Study Record Dates

First Submitted

December 10, 2013

First Posted

January 20, 2014

Study Start

October 1, 2013

Primary Completion

September 1, 2014

Study Completion

September 1, 2014

Last Updated

April 17, 2015

Record last verified: 2015-04

Locations