Strength Training for Elderlies and Their Effects on Muscle Fatigue and Microcirculation - Randomized Clinical Trial

Not Applicable

Completed

• Conditions: Aging
• Interventions: Other: Strength training program

• Registration Number: NCT02516189
• Lead Sponsor: Professor Fernando Figueira Integral Medicine Institute

Brief Summary

The purpose of this study is to verify the effects of a strength training program on functional capacity, muscle performance and microcirculation in the elderly.

Detailed Description

Purpose

The primary research question is:

Do muscular strength training programs can improve functional capacity, muscle performance and microcirculation in the elderly? Hypothesis: Strength training program will promote electromyographic changes during the development of peripheral muscle fatigue and microcirculatory blood flow contributing to functional autonomy.

Secondary Research Questions

1. Does the strength training program in the elderly improve the standard of electromyographic fatigue? Hypothesis: Elderly practitioners of strength exercise program showed increased neuromuscular efficiency and electromyographic fatigue index.

2. Do the strength training program in the elderly improve peripheral microcirculation? Hypothesis: A regular program of strength exercise in the elderly increases the blood flow in peripheral microcirculation changing the process of muscle fatigue. These biomechanical and physiological changes contribute to increased functional autonomy and reducing the risk of falls in the elderly.

Study Timeline

• Study Start: 2015-08
• Study First Submitted: 2015-08-03
• Study First Submitted QC: 2015-08-04
• Study First Posted: 2015-08-05
• Status Verified: 2016-08
• Primary Completion: 2016-08
• Study Completion: 2016-08
• Last Update Submitted: 2016-08-11
• Last Update Posted: 2016-08-15

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 80

Inclusion Criteria

• sedentary elderly
• individuals who have physical and medical conditions to perform strength training
• individuals who participate in the Open University Maturity Program

Exclusion Criteria

• individuals who do not have physical and medical conditions to perform strength training

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: PARALLEL

Arm && Interventions

Group	Intervention	Description
Group A	Strength training program	group of elderly participants of strength training program

Primary Outcome Measures

Name	Time	Method
Change in elderlies's muscle fatigue after 4 months	4 months	muscle fatigue will be quantified by surface electromyography of the muscles of the lower limbs. The electromyographic fatigue threshold and fatigue index will be calculated by the Root Mean Square (RMS) and Median Frequency variables after 4 months.
Change in elderlies's microcirculatory blood flow after 4 months	4 months	The blood flow in the microcirculation in the elderly will be measured by laser-doppler flowmetry. The measures blood flow in the microcirculation will be quantified by the reactive hyperemia Post-occlusion protocol (PORH).
Change in elderlies's functional capacity after 4 months	4 months	The functional capacity of the elderly will be evaluated by the Berg Balance Scale, the Timed up-and-go Test, and Falls Efficacy Scale International (FES-I) after 4 months

Secondary Outcome Measures

Name	Time	Method
Change in elderlies's strength after 4 months	4 months	The lower body strength of the elderly will be measured by 30-s chair test stand after 4 months.
Change in elderlies's functional autonomy after 4 months	4 months	The functional autonomy of the elderly will be determined by the general functionality index of the Latin American Development Group to Maturity Protocol after 4 months.