Effects of Resistance Training in Untrained Older Adults

May 11, 2015 updated by: Wagner Rodrigues Martins, University of Brasilia

Effects of 16 Weeks of Resistance Training Using Elastic Resistance or Machines on Muscle Mass, Strength and Postural Control in Untrained Older Adults.

The latest randomized controlled trials and systematic reviews of resistance training performed by older adults reported that the systematic use of exercise in machines improves muscle strength and power, functional abilities, body mass and body balance. However, the effect of resistance training with elastic tubes exercises have not been studied in all the variables described above. The objective of this study is to analyze the effects of elastic tubes exercises on muscle mass, muscle strength, functional performance and postural control in elderly untrained.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Detailed Description

This is a randomized clinical trial study (RCT) with 2 parallel arms. The subjects will be divided in 2 groups with a randomized block technique: Elastic Training Group (ETG) and Machine Training Group (MTG). The subjects will be submitted to a two-week familiarization period and then a sixteen-week of strength training program will be performed twice a week.

This regimen of resistance training in both groups will consist of four exercises for lower limbs and four exercises for upper limbs which will be alternately performed with a one-minute interval between them during familiarization and training periods. Lower limb exercises will consist of: hip extension and abduction, and knee flexion and extension. Upper limb exercises will consist of: bench press, rowing, triceps and high pulley exercise.

Study Type

Interventional

Enrollment (Actual)

68

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • Brazil
    • Distrito Federal
      • Brasilia, Distrito Federal, Brazil, 72220-900
        • University of Brasilia
      • Brasília, Distrito Federal, Brazil, 72220-900
        • University of Brasilia

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

55 years to 85 years (Adult, Older Adult)

Accepts Healthy Volunteers

Yes

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Convenience sample of forty healthy older adults with a minimum of 55 years of age.

Exclusion Criteria:

  • subjects suffering from orthopedic, neurologic, rheumatologic, metabolic or heart conditions, and uncontrolled arterial hypertension. Additional exclusion criteria included undergoing estrogen therapy, use of cardiac pacemaker, knee or hip arthroplasty, the presence of fragments from previous osteosynthesis; orthopedic surgery, fractures, muscle injury or the practice of resistance training within the last 6 months

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: Single

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Active Comparator: Machine resistance training (MRT)
The machine resistance training will consist of four exercises for lower limbs and four exercises for upper limbs which will be alternately performed with a one-minute interval between them during familiarization and training periods. Lower limb exercises will consist of: hip extension and abduction, and knee flexion and extension. Upper limb exercises will consist of: bench press, rowing, triceps and high pulley exercise.
Other: Machines exercises
Resistance training in pneumatic machines.
Experimental: Elastic resistance training (ERT)
The elastic resistance training will consist of four exercises for lower limbs and four exercises for upper limbs which will be alternately performed with a one-minute interval between them during familiarization and training periods. Lower limb exercises will consist of: hip extension and abduction, and knee flexion and extension. Upper limb exercises will consist of: bench press, rowing, triceps and high pulley exercise.
Other: Elastic exercises
Resistance training with elastic tubes.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Change in Body Mass
Time Frame: Change from baseline in body mass at 16 weeks.
To assess muscle mass, a Dual-energy X-ray Absortiometry (DXA) (GE Electric Company®, Lunar Prodigy) will be used.
Change from baseline in body mass at 16 weeks.
Change in Muscle Strength
Time Frame: Change from baseline in muscle strength at 16 weeks.
Lower limb muscle strength will be assessed with an isokinetic dynamometer (Biodex System®, model III) and upper limb muscle strength with an isometric dynamometer (Jamar®, Hand Dynamometer).
Change from baseline in muscle strength at 16 weeks.
Change in Postural Balance
Time Frame: Change from baseline in postural balance at 16 weeks.
The postural balance will be assessed with a three-dimensional (3D) motion analysis system and force plates.
Change from baseline in postural balance at 16 weeks.

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Change in Functional performance
Time Frame: Before and after 16 weeks of resistance training
The functional performance will be assessed with Ten Meters Walk Test (TMW), Timed Up&Go Test (TUG) and 30 Second Chair Stand Test (T30).
Before and after 16 weeks of resistance training

Collaborators and Investigators

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

Sponsor

University of Brasilia

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

June 1, 2014

Primary Completion (Actual)

May 1, 2015

Study Completion (Actual)

May 1, 2015

Study Registration Dates

First Submitted

September 25, 2014

First Submitted That Met QC Criteria

September 27, 2014

First Posted (Estimate)

October 1, 2014

Study Record Updates

Last Update Posted (Estimate)

May 13, 2015

Last Update Submitted That Met QC Criteria

May 11, 2015

Last Verified

May 1, 2015

More Information

Terms related to this study

Keywords

Other Study ID Numbers

  • ERT-2014

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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