Functional Mobility in the Elderly: Influence of Morphological, Neuromuscular and Training Parameters

NCT03206580 | Completed DMC

• 1 other identifier: UFRGS 2.034.508
• Study Type: interventional
• Target: 11
• Locations: 1 country
• Sites: 1

Brief Summary

Life expectancy and elderly population are increasing. Health professionals try to provide longevity with good quality of life for this population, through the functional independence maintenance. In this context, physical exercise has an important role, specially the strength training. The ability to produce muscle strength is positively associated with the functionality and independence of older people. Different types of strength training can lead to different neuromuscular and functional gains. These types of interventions can help health professionals to determine characteristics of training for the elderly, aiming the maintenance of their functional independence. Thus, the purpose of this study is to determine the effects of a concentric strength training versus a concentric-eccentric strength training for knee flexors and extensors on structural, neuromuscular and functional parameters in older people, as well as to investigate the effect of a detraining period. Additionally, the investigators will try to identify which structural and neuromuscular parameters of lower limbs are better related to the functionality.

Conditions

Aging

Keywords

aging; strength training; functionality

Outcome Measures

Primary Outcomes (16)

• Pennation angle of rectus femoris, vastus lateralis and biceps femoris, bilaterally.

  Pennation angle at rest

  First evaluation, change from first evaluation to baseline, change from baseline to 8 weeks of training, change from 8 weeks of training to 4 weeks of detraining and change from 4 weeks of detraining to 8 weeks of detraining

• Thickness of rectus femoris, vastus lateralis and biceps femoris, bilaterally.

  Muscle thickness at rest

  First evaluation, change from first evaluation to baseline, change from baseline to 8 weeks of training, change from 8 weeks of training to 4 weeks of detraining and change from 4 weeks of detraining to 8 weeks of detraining

• Fascicle length of rectus femoris, vastus lateralis and biceps femoris, bilaterally.

  Fascicle length at rest

  First evaluation, change from first evaluation to baseline, change from baseline to 8 weeks of training, change from 8 weeks of training to 4 weeks of detraining and change from 4 weeks of detraining to 8 weeks of detraining

• Echo intensity of rectus femoris, vastus lateralis and biceps femoris, bilaterally.

  Echo intensity determined from a gray scale analysis of the muscles at rest

  First evaluation, change from first evaluation to baseline, change from baseline to 8 weeks of training, change from 8 weeks of training to 4 weeks of detraining and change from 4 weeks of detraining to 8 weeks of detraining

• Countermovement vertical jump

  Maximal vertical height in the countermovement jump

  First evaluation, change from first evaluation to baseline, change from baseline to 8 weeks of training, change from 8 weeks of training to 4 weeks of detraining and change from 4 weeks of detraining to 8 weeks of detraining

• Timed-up-&-go

  Time to rise from a chair, walk 3 meters, turn, walk back and sit again

  First evaluation, change from first evaluation to baseline, change from baseline to 8 weeks of training, change from 8 weeks of training to 4 weeks of detraining and change from 4 weeks of detraining to 8 weeks of detraining

• Unipodal static balance

  Range in anterior-posterior and medio-lateral center of pressure movement during unipodal evaluation during 30 seconds

  First evaluation, change from first evaluation to baseline, change from baseline to 8 weeks of training, change from 8 weeks of training to 4 weeks of detraining and change from 4 weeks of detraining to 8 weeks of detraining

• Gait speed

  Gait speed for walking 10 meters at self-selected speed

  First evaluation, change from first evaluation to baseline, change from baseline to 8 weeks of training, change from 8 weeks of training to 4 weeks of detraining and change from 4 weeks of detraining to 8 weeks of detraining

• Stair ascent and descent time

  Time to stair ascent and descent stairs

  First evaluation, change from first evaluation to baseline, change from baseline to 8 weeks of training, change from 8 weeks of training to 4 weeks of detraining and change from 4 weeks of detraining to 8 weeks of detraining

• 6-minutes walking test

  The distance that the subjects can walk during 6 minutes

  First evaluation, change from first evaluation to baseline, change from baseline to 8 weeks of training, change from 8 weeks of training to 4 weeks of detraining and change from 4 weeks of detraining to 8 weeks of detraining

• Sit-to-stand

  Maximal number of repetitions during 30 seconds

  First evaluation, change from first evaluation to baseline, change from baseline to 8 weeks of training, change from 8 weeks of training to 4 weeks of detraining and change from 4 weeks of detraining to 8 weeks of detraining

• Power of knee extensors and knee flexors

  Power during maximal concentric and eccentric contractions

  First evaluation, change from first evaluation to baseline, change from baseline to 8 weeks of training, change from 8 weeks of training to 4 weeks of detraining and change from 4 weeks of detraining to 8 weeks of detraining

• Rate of torque production of knee extensors and knee flexors

  Rate of torque production during maximal isometric contractions

  First evaluation, change from first evaluation to baseline, change from baseline to 8 weeks of training, change from 8 weeks of training to 4 weeks of detraining and change from 4 weeks of detraining to 8 weeks of detraining

• Strength of knee extensors and knee flexors

  Maximal isometric strength

  First evaluation, change from first evaluation to baseline, change from baseline to 8 weeks of training, change from 8 weeks of training to 4 weeks of detraining and change from 4 weeks of detraining to 8 weeks of detraining

• Strength of knee extensors and knee flexors

  Maximal concentric strength

  First evaluation, change from first evaluation to baseline, change from baseline to 8 weeks of training, change from 8 weeks of training to 4 weeks of detraining and change from 4 weeks of detraining to 8 weeks of detraining

• Strength of knee extensors and knee flexors

  Maximal eccentric strength

  First evaluation, change from first evaluation to baseline, change from baseline to 8 weeks of training, change from 8 weeks of training to 4 weeks of detraining and change from 4 weeks of detraining to 8 weeks of detraining

Study Arms (2)

Concentric training

EXPERIMENTAL

Concentric training

Other: Concentric training

Concentric-eccentric training

EXPERIMENTAL

Concentric-eccentric training

Other: Concentric-Eccentric training

Interventions

Concentric training OTHER

Subjects will be submitted to 8 weeks (16 sessions) of a concentric training for knee flexors and knee extensors. This training will be performed in an isokinetic dynamometer at 70% of the subject's maximal voluntary isometric contraction.

Concentric training

Concentric-Eccentric training OTHER

Subjects will be submitted to 8 weeks (16 sessions) of a concentric-eccentric training for knee flexors and knee extensors. This training will be performed in an isokinetic dynamometer at 70% of the subject's maximal voluntary isometric contraction.

Concentric-eccentric training

Eligibility Criteria

• Age: 65 Years - 85 Years
• Sex: male
• Healthy Volunteers: Yes
• Age Groups: Older Adult (65+)

You may qualify if:

• Male;
• years of age or more;
• able to walk independently;
• not engaged in regular physical exercise.

You may not qualify if:

• Auditory, vestibular, visual and/or neuromusculoskeletal impairments that could influence the tests and the training;
• severe cognitive impairment;
• lower limb surgery;
• osteoporosis;
• lower limb pain.

Sponsors & Collaborators

• Federal University of Rio Grande do Sul: lead

Study Sites (1)

Exercise Research Laboratory, School of Physical Education, Federal University of Rio Grande do Sul

Porto Alegre, Rio Grande do Sul, 90690-200, Brazil

Location

Study Design

• Study Type: interventional
• Phase: not applicable
• Allocation: RANDOMIZED
• Masking: QUADRUPLE
• Who Masked: PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
• Purpose: TREATMENT
• Intervention Model: PARALLEL
• Sponsor Type: OTHER
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: Professor

Study Record Dates

• First Submitted: June 22, 2017
• First Posted: July 2, 2017
• Study Start: October 15, 2016
• Primary Completion: December 31, 2018
• Study Completion: December 31, 2018
• Last Updated: June 10, 2024

Record last verified: 2024-06

Locations

BR (1)