Targeted Hip Strength Training in Children With Cerebral Palsy (CP)

Overview

This study's main aim is to look at targeted strength training for muscles at the hips. Specifically to consider whether targeted strength training not only effects strength of the specific muscles but also ability to stand on one leg (single leg balance) as well as walking in children with cerebral palsy? This study is a feasibility of method of investigation.

Full Title of Study: “Targeted Hip Progressive Resistance Training to Improve Single Leg Balance and Walking in Children With Cerebral Palsy”

Study Type

  • Study Type: Interventional
  • Study Design
    • Allocation: N/A
    • Intervention Model: Single Group Assignment
    • Primary Purpose: Treatment
    • Masking: Single (Outcomes Assessor)
  • Study Primary Completion Date: March 2013

Detailed Description

This study is focusing on functional change. The reasoning is that if the targeted strength training is effective at improving hip muscle contribution to stability then single leg balance may be improved. This may be functionally evident when weight bearing is taken by say the left leg in gait (percentage stance phase of gait) and as a consequence the opposing swing phase will be optimised as measured by stride. Thus the research question is does strengthening of the rotating and sideways moving hip muscles improve the walking of children with CP as measured by appropriate aspects of gait? Secondly, does this targeted strengthening also increase duration of single leg balance which is a simple easy to use measure in the community without the need for specialised equipment? The primary outcome measure will use a laboratory based 4 camera Codsmotion (CODA) biomechanical analysis system to measure stride (a) and percentage duration of stance phase of gait (b). Secondarily the duration of single leg balance in terms of seconds will be recorded. Gross motor functional and quality of life as also being assessed. The intervention is strengthening which will be implemented with the principles of progressive resistance training. Children with CP's therapists would ask for this type of intervention to be carried out

Interventions

  • Other: Usual care plus progresive resistance training
    • Duration 8 weeks; two weeks of familiarisation with the intervention protocol without resistance (for familiarisation and neural adaptation) followed by 6 weeks progressive resistance (PR). The three times a week PR training will be as a home exercise program with fortnightly home visits to monitor/progress PR training. It comprises a 4 minute warm up and cool down with one exercise targeting the hip abductors and one the lateral rotators. Exercise prescription will follow existing guidelines for progressive PR training. Parents will be taught supervision by the researcher using clear explanations in words and pictures in a logbook. Logbooks have been found to facilitate compliance, dosage and motivation.

Arms, Groups and Cohorts

  • Experimental: home progressive resistance exercise

Clinical Trial Outcome Measures

Primary Measures

  • Gait parameter
    • Time Frame: baseline, plus 8 weeks and plus 8 weeks (exit point)
    • 4 camera CODA gait analysis system for change in percentage stance phase of gait and stride in cm.

Secondary Measures

  • Gross Motor Function Measure (GMFM)
    • Time Frame: Baseline, plus 8 weeks and plus 8 weeks (exit)
    • To investigate any change in dimensions D and E of fucntioal activity with standardised GMFM.

Participating in This Clinical Trial

Inclusion Criteria

  • Children with CP aged between 7-16 years having sufficient cognition to undertake a strength training program Exclusion Criteria:

1. non-ambulation children or those unable to walk 5 meters independently (without walking aid), 2. lower limb surgery within 12 months, 3. botox within 6 months, 4. oral muscle relaxant medication 5. significant learning difficulty 6. Any concurrent condition which would be contraindicated to progressive resistance training such as unmanaged high blood pressure, cardiac pathology or uncontrolled epilepsy 7. Where at baseline assessment finds no weakness in the muscles under investigation 8. concurrent or within 6 months involvement in any other research study 9. Non consent to General Practitioner (GP) notification.

Gender Eligibility: All

Minimum Age: 7 Years

Maximum Age: 16 Years

Are Healthy Volunteers Accepted: No

Investigator Details

  • Lead Sponsor
    • University of Nottingham
  • Provider of Information About this Clinical Study
    • Sponsor
  • Overall Official(s)
    • Grahame Pope, MPhil, BSc, Principal Investigator, The University of Nottingham
  • Overall Contact(s)
    • Sarah E Westwater-Wood, MMedSci, BSc, +44 115 8231793, sarah.westwater-wood@nottingham.ac.uk

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