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Hip OsteoarthritisNCT01450254

Effects of Foot Center of Pressure Manipulation on Hip Osteoarthritis Patients During Gait

A study testing AposTherapy Biomechanical System in people with Hip Osteoarthritis, run by HaEmek Medical Center, Israel at 1 site in Israel.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The purpose of this study is to: 1. Analyze the short-term effects of external center of pressure manipulation of the foot in idiopathic hip osteoarthritis patients during gait on: 1. Gait parameters (spatiotemporal, kinematic, and kinetic) 2. Muscle activation patterns of the lower limbs and back 2. Read more about this study

Who is it for?
Ages 50 years and older, women only
Conditions the study is for
Hip Osteoarthritis
What is being tested?
AposTherapy Biomechanical System
Type of treatment
Medical device
Could I receive a placebo?
No, everyone receives an active treatment
How many people
14 participants
Where
1 siteIsrael
Study dates
Aug 2012to Dec 2014
Phase
Interventional
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 50 years and older
  • Women only
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Women age 50 and over with unilateral or bilateral idiopathic hip osteoarthritis

Who cannot join

  • Previous surgery on the lower limbs or back
  • Previous musculoskeletal injuries and/or diseases of the lower limbs or back
  • Cognitive disabilities and/or inability to cooperate or understand study instructions
  • Vestibular problems and/or use of a walking aid
  • Neurological and/or orthopaedic and/or cardiovascular and/or pulmonary disorders or risks that may impact the patient's functional performance or limit exercise

Trial locations and contacts

1 site in 1 country.

Israel1 site
  • Biorobotics and Biomechanics Lab, Technion Israel Institute of Technology

    Haifa

Other trials in Israel

About this study

Official title: Effects of Foot Center of Pressure Manipulation on Hip Biomechanics, Muscle Activation Patterns, and Energy Consumption During Gait in Hip Osteoarthritis Patients

The purpose of this study is to:

  1. Analyze the short-term effects of external center of pressure manipulation of the foot in idiopathic hip osteoarthritis patients during gait on:
  2. Gait parameters (spatiotemporal, kinematic, and kinetic)
  3. Muscle activation patterns of the lower limbs and back
  4. Analyze the long-term effects (during the period of one year) of external center of pressure manipulation of the foot in idiopathic hip osteoarthritis patients during gait on:
  5. Gait parameters (spatiotemporal, kinematic, and kinetic)
  6. Motor learning and muscle activation patterns
  7. Energy consumption
  8. Pain, physical function, and quality of life
Read more

The hypotheses of the study, in reference to the aforementioned study objectives are:

  1. Changes in foot center of pressure will have an immediate effect on gait parameters and muscle activation patterns of the lower limbs and back.
  2. Long-term manipulation of foot center of pressure, as a result of a year-long rehabilitation program using the AposTherapy Biomechanical System, will result in improvement in gait parameters, changes in muscle activation patterns as a result of new motor learning, improvement in energy consumption, decrease in pain, improvement in physical function, and improvement in quality of life.
Read the detailed description

This study is a randomized prospective controlled study assessing the short and long-term effects of external foot center-of-pressure manipulation on gait pattern, muscle activation pattern, energy consumption, physical function, pain, and quality of life. Sixty patients will be recruited for the study and divided randomly into two groups, an experimental group (thirty patients) and a control group (thirty patients). Both groups will be similar with respect to demographic and pathological profiles.

The experimental group will be fitted with a customized biomechanical device worn on the feet (AposTherapy Biomechanical System, AposTherapy - Sports and Medical Technologies Ltd., Hertzlia, Israel). The device is custom calibrated for each patient. The device allows center of pressure manipulation for all phases of the gait cycle and induces controlled perturbation during gait. The immediate effects of the device will be evaluated using center of pressure measurements, three-dimensional gait analysis, and surface electromyography. Following this, patients will be instructed to walk with the device at home on a daily basis according to a customized AposTherapy therapy protocol. They will return to the laboratory for measurements of gait pattern, muscle activation pattern, energy consumption, physical function, pain, and quality of life after three months, six months, and twelve months from the start of the therapy protocol. Data from the analyses will be used to reveal potential changes in the aforementioned measurements as a result of the study intervention.

The control group will carry out the same measurements in the laboratory over the period of one year, however without the biomechanical intervention device.

Being tested
AposTherapy Biomechanical System, Control
Keywords
Hip Osteoarthritis, Gait Patterns, Neuromuscular retraining
Medical subject headings
Osteoarthritis, Hip

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • AposTherapy Biomechanical SystemDevice

    The system is a rehabilitation program implementing a device comprised of four adjustable modular elements attached to foot-worn platforms that are capable of manipulating the foot's center of pressure and applying perturbation training throughout the gait cycle. The device allows for neuromuscular training during dynamic loading.

  • ControlOther

    No intervention will be prescribed to the control group during participation in the study.

Study groups in NCT01450254
Study groupRoleWhat they receive
ExperimentalExperimentalThese patients will carry out a therapy program with the study intervention device.
Receives: Device: AposTherapy Biomechanical System
ControlActive comparatorThe patients in this group will not carry out a therapy program with the study intervention device.
Receives: Other: Control

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Change from Baseline in Gait Patterns at 3 months, 6 months, and 12 months

    Three-dimensional gait analysis of spatiotemporal, kinetic, and kinematic parameters.

    Center of pressure measurements.

    Measured: From beginning of patient participation in study, after 3 months, after 6 months, and after 12 months

  2. Change from Baseline in Muscle Activation Patterns at 3 months, 6 months, and 12 months

    Surface electromyographic analysis of muscle activation patterns.

    Measured: From beginning of patient participation in study, after 3 months, after 6 months, and after 12 months

Secondary outcomes (3)
  1. Change from Baseline in Physical Function at 3 months, 6 months, and 12 months

    Self-evaluation questionnaires.

    Physical function tests.

    Energy consumption measurements.

    Measured: From beginning of patient participation in study, after 3 months, after 6 months, and after 12 months

  2. Change from Baseline in Pain at 3 months, 6 months, and 12 months

    Self-evaluation questionnaires.

    Measured: From beginning of patient participation in study, after 3 months, after 6 months, and after 12 months

  3. Change from Baseline in Quality of Life Assessments at 3 months, 6 months, and 12 months

    Self-evaluation questionnaires.

    Measured: From beginning of patient participation in study, after 3 months, after 6 months, and after 12 months

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted12 Oct 2011 (estimated)
  2. Study startAug 2012
  3. Primary completionDec 2014
  4. Study completionDec 2014

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
None (open label)
Enrolment
14 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01450254
Sponsor's protocol ID
0091-11-EMC
Status last verified
Jul 2015
First submitted
3 Oct 2011
Last updated
7 Jul 2015
Results posted
No

Questions about this trial

What is this clinical trial studying?

A study testing AposTherapy Biomechanical System in people with Hip Osteoarthritis, run by HaEmek Medical Center, Israel at 1 site in Israel.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 1 inclusion and 5 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 7 Jul 2015. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Israel. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Change from Baseline in Gait Patterns at 3 months, 6 months, and 12 months (time frame: From beginning of patient participation in study, after 3 months, after 6 months, and after 12 months). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 7 Jul 2015.

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