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

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.

Study Overview

• Status: Completed
• Conditions: Aging
• Intervention / Treatment: Other: Strength training program

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 Type: Interventional
• Enrollment (Actual): 80
• Phase: Not Applicable

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 65 years to 85 years (Older Adult)
• Accepts Healthy Volunteers: Yes
• Genders Eligible for Study: All

Description

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 Plan

How is the study designed?

Design Details

• Primary Purpose: Basic Science
• Allocation: Randomized
• Interventional Model: Parallel Assignment
• Masking: Single

Number of Arms

2

Arms and Interventions

Participant Group / Arm	Intervention / Treatment
Experimental: Group A; group of elderly participants of strength training program	Other: Strength training program; Strength Training program applied twice a week for sixteen weeks. Each training exercises has a total time of 50 minutes. Warm-up: 5 minutes of stretching. Training: Leg press; Leg Curl; Vertical traction; Chest press; Abdominal crunch; Lower back. Gametherapy. Relaxation: 5 minutes of stretching.
No Intervention: Group B; group of seniors who did not practice strength training program

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Change in elderlies's microcirculatory blood flow after 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).	4 months
Change in elderlies's muscle fatigue after 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.	4 months
Change in elderlies's functional capacity after 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	4 months

Secondary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Change in elderlies's strength after 4 months	The lower body strength of the elderly will be measured by 30-s chair test stand after 4 months.	4 months
Change in elderlies's functional autonomy after 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.	4 months

Collaborators and Investigators

• Sponsor: Professor Fernando Figueira Integral Medicine Institute
• Collaborators: Universidade Estadual da Paraiba
• Investigators: Principal Investigator: Danilo A Vasconcelos, MS, Universidade Estadual da Paraiba; Principal Investigator: João G Alves, PhD, Instituto de Medicina Integral Professor Fernando Figueira

Study record dates

Study Major Dates

• Study Start: August 1, 2015
• Primary Completion (Actual): August 1, 2016
• Study Completion (Actual): August 1, 2016

Study Registration Dates

• First Submitted: August 3, 2015
• First Submitted That Met QC Criteria: August 4, 2015
• First Posted (Estimate): August 5, 2015

Study Record Updates

• Last Update Posted (Estimate): August 15, 2016
• Last Update Submitted That Met QC Criteria: August 11, 2016
• Last Verified: August 1, 2016

More Information

Terms related to this study

• Keywords: Electromyography; Motor Activity; Microcirculation
• Additional Relevant MeSH Terms: Fatigue
• Other Study ID Numbers: FEFMM