Impact of Training on Gait and Strength in Stroke Survivors

Completed

Phase N/A Results N/A

Trial Description

Background: A discrepancy between strength gain and gait changes following various training programs aimed at improving gait function after stroke has been noted. A mismatch between the training program and gait parameters could explain this finding.
Objective: To evaluate the impact of an isokinetic-strengthening program, matching the requirements of the affected lower-limb muscle groups involved in the energy generation of gait, to a control intervention, on gait performance and muscle strength.
Hypothesis: The isokinetic training program of the affected lower-limb muscles would produce greater changes in gait performance and strength than a control intervention not aiming at training these muscle groups.
Design: Single-blinded randomized controlled trial.
Participants: A convenient sample of 30 individuals with chronic hemiparesis.
Interventions: Participants were randomly assigned into two groups (n=15), each training three times/week for six weeks. The experimental group trained the affected plantarflexors, hip flexors and extensors concentrically, while the control group trained the affected upper-limb muscles.
Main outcome measures: Baseline values and post-training values, taken at the end of the training program, of maximal voluntary concentric strength, gait speed and peak positive power.

Conditions

Interventions

  • Isokinetic lower-limb training Other
    Intervention Desc: concentric training of the affected plantarflexors, hip flexors and hip extensors
    ARM 1: Kind: Experimental
    Label: isokinetic lower-limb training
    Description: 3 times/week for 6 weeks
  • Isokinetic upper-limb training Other
    Intervention Desc: concentric training of the affected wrist extensors, elbow flexors and shoulder flexors
    ARM 1: Kind: Experimental
    Label: isokinetic uppe-limb training
    Description: 3 times/week for 6 weeks

Trial Design

  • Allocation: Randomized
  • Masking: Single Blind (Outcomes Assessor)
  • Purpose: Treatment
  • Endpoint: Efficacy Study
  • Intervention: Parallel Assignment

Outcomes

Type Measure Time Frame Safety Issue
Primary change in gait speed gait speed was assessed at baseline and at the completion of the 6-week training (i.e. week #7) No
Primary change in peak positive power peak positive power was assessed at baseline and at the completion of the 6-week training (i.e. week #7) No
Secondary change in maximal voluntary concentric strength maximal voluntary concentric strength was assessed at baseline and at the completion of the 6-week training (i.e. week #7) No

Sponsors