Clinical Trial: Plantar Heel Pain: Multisegment Foot Motion and Muscle Function, FFI Translation, and Evaluation of Treatments

Study Status: Recruiting
Recruit Status: Recruiting
Study Type: Observational

Official Title: Plantar Heel Pain: Multisegment Foot Motion and Muscle Function, FFI Translation, and Evaluation of Treatments-Subproject1 Investigation of Multisegmental Foot Motion and Muscle Activity in Patients W

Brief Summary:

"Plantar heel pain (PHP)" or "plantar fasciitis" is one of the major foot problems which can occur in any age group. It is a common encountered musculoskeletal problem that can cause disability, activity limitation, discomfort, and affect quality of life. It involves pain and inflammation of the plantar fascia, which runs across bottom of the foot and connects heel bone to toes. PHP frequently found in active workers aged between 25 and 65 years with the highest incidence in people aged between 40 and 60 years.

However, very few studies investigated the alterations of the multisegmental foot motions and muscle functions in patients with PHP. To prescribe the relevant program of treatment and reduce risk of symptoms chronicity, it is necessary to have in-depth understanding of changing mechanisms in patients with PHP. To explain how the symptoms occur in patients with PHP, foot function is another aspect that should be determined. One of the popular questionnaires determining foot function is the Foot Function Index (FFI) questionnaire. It has been proved to have a good reliability and validity and has been translated into several languages. To be able to use the international standard questionnaire, it is necessary to translate the FFI into Thai. This can be implemented in Thailand and be able to compare the findings of interventional effect internationally. In addition, very few studies reported the effectiveness of the treatment program for patients with PHP. Among previous evidences, the controversial findings existed. Thus, the intervention program should be evaluated for obtaining the effective treatment for this population.


Detailed Summary:

Procedure

Each participant will attend data collection on a single occasion and allocate into the healthy or patients with PHP with the selection criteria before enrollment. They will dress with short pants which researcher prepare. Before testing, the NORAXON TeleMyo Receiver will be synchronized with the forceplate and video. The real time signal of motion, EMG, and force data will simultaneously synchronize and present on the screen.

EMG preparation

The skin will be prepared over the sites for electrode placements by shaving, lightly abrading, and cleaning with 70% alcohol prior to electrode application. The electrodes will place 20 mm center to center interelectrode space over site in each muscle. Interelectrode impedance is less than 10 kilo ohm. The elastic adhesive tape is used to fixed electrodes to control movement artifacts. Participants will perform reference contractions to check the electrodes placement and cross-talk between EMG signals from different muscles prior to data collection.

EMG placement

Muscle activation will be measured by an electromyography (TeleMyo DTS Telemetry, NORAXON USA Inc.) at sampling frequency of 1000 Hz in order to quantify dynamic muscle function of lower extremity. Surface electrodes will be placed according to recommendations of the European Recommendations for Surface Electromyography (SENIAM). Pairs of wet-gelled bipolar Ag-AgCl Dual surface electrodes (Ag/AgCl NORAXON Dual electrodes 20 mm spacing) are selected for surface EMG sensor. The location and orientation of electrode placements are localized in supine position by same researcher. Electrode will be placed on Peroneus longus (PL) which will be placed at 1/4 on the line betw
Sponsor: Mahidol University

Current Primary Outcome:

  • Multisegmental foot motion [ Time Frame: through study completion, an average of 1 year ]
    present with the degree of motion (degree)
  • Multisegmental foot pattern [ Time Frame: through study completion, an average of 1 year ]
    present with the minimal detectable change score (score)
  • Muscle activity [ Time Frame: through study completion, an average of 1 year ]
    present with percentage of maximum isometric voluntary contraction (%MVIC)


Original Primary Outcome: Same as current

Current Secondary Outcome:

  • Lower extremity motion [ Time Frame: through study completion, an average of 1 year ]
    present with the degree of motion (degree)
  • Gait speed [ Time Frame: through study completion, an average of 1 year ]
    present with meter per second (m/s)
  • Step length [ Time Frame: through study completion, an average of 1 year ]
    present with meter (m)
  • Step time [ Time Frame: through study completion, an average of 1 year ]
    present with second (s)


Original Secondary Outcome: Same as current

Information By: Mahidol University

Dates:
Date Received: May 8, 2017
Date Started: February 1, 2017
Date Completion: August 2019
Last Updated: May 17, 2017
Last Verified: May 2017