Time Difference Between Onsets of Lateral And Medial Hamstring Muscles During Gait in Patients With Patellofemoral Pain.

NCT03392688 | Completed

• 1 other identifier: BahcesehirU
• Study Type: interventional
• Target: 30
• Locations: 1 country
• Sites: 1

Brief Summary

Early activation of lateral hamstrings (LH) in respect of medial hamstrings (MH) may cause abnormal knee abduction and external rotation moments in individuals. This situation may increase the risk of ligament injury and may be the reason for susceptibility of patellofemoral pain (PFP). The aim of this study is to compare the time delays in electromyographic studies between medial and lateral hamstrings in patients with PFP and asymptomatic subjects.

Conditions

Patellofemoral Pain

Keywords

onset , hamstring muscles, patellofemoral pain

Outcome Measures

Primary Outcomes (1)

• Time difference between the onsets of the medial and lateral hamstring muscles

  The surface EMG electrodes (silver/silver chloride, pre-gelled, Ambu Blue Sensor, Denmark) (Konrad P.) with an interelectrode distance of 20 mm between centers were used to record an EMG signal during walking. Portable 8 channel (TELEEMG, BTS, Milan, Italy) with built in x10 amplifications, 10-450 Hz bandpass and sampling rate of 1000 Hz were used for recording. The location and orientation of the electrodes for each MH (ST) and LH (BF) were identified according to SENIAM (Surface ElectromyoGraphy for the Non-Invasive Assessment of Muscles) criteria

  Preparing participants that include skin preparation and electrodes placement, and recording EMG data took average one hour for each participant

Secondary Outcomes (3)

• kujala patellofemoral pain scale

  At the begining of the study each participant was asked to complete the scale. It took average 10 minutes. Performed once.

• Numeric Rating Scale (NRS)

  Performed 1 day once.

• Q angle

  Performed 1 day once.

Study Arms (2)

Patellofemoral pain group

EXPERIMENTAL

Diagnosis of PFP was established based on symptoms, physical examination performed by an orthopedic surgeon. Patients were also screened through physical examination to rule out ligamentous or meniscal injuries, patellar tendinitis and knee joint effusion by an orthopedic surgeon. All patients also underwent a radiologic examination consisting of AP, lateral and tangential radiograms. Surface EMG, Kujala patellofemoral pain scale, Q angle measurement were administered to the PFP group.

Other: kujala patellofemoral pain scale; Diagnostic Test: Surface EMG; Other: Q angle measurement

Control Group

ACTIVE COMPARATOR

Control group had similar demographic characteristics with PFP group, and neither one of the controls had any knee pathology or current knee pain or effusion that would effect the gait. Surface EMG, Q angle measurement were administered to the control group.

Diagnostic Test: Surface EMG; Other: Q angle measurement

Interventions

kujala patellofemoral pain scale OTHER

Kujala patellofemoral pain scale was used to evaluate knee functions of the PFP subjects.

Patellofemoral pain group

Surface EMG DIAGNOSTIC_TEST

The surface EMG electrodes (silver/silver chloride, pre-gelled, Ambu Blue Sensor, Denmark) (Konrad P.) with an interelectrode distance of 20 mm between centers were used to record an EMG signal during walking. Portable 8 channel (TELEEMG, BTS, Milan, Italy) with built in x10 amplifications, 10-450 Hz bandpass and sampling rate of 1000 Hz were used for recording. The location and orientation of the electrodes for each MH (ST) and LH (BF) were identified according to SENIAM (Surface ElectromyoGraphy for the Non-Invasive Assessment of Muscles) criteria.

Control Group; Patellofemoral pain group

Q angle measurement OTHER

Q angle measurement was applied to both patellofemoral pain and control group subjects in standing position.

Control Group; Patellofemoral pain group

Eligibility Criteria

• Age: 18 Years - 40 Years
• Sex: all
• Healthy Volunteers: Yes
• Age Groups: Adult (18-64)

You may qualify if:

• Pain originating specifically from the patellofemoral articulation (vague or localized);
• At least 3/10 pain intensity accordingly to the Numeric Analog Scale (NAS) with at least 2 of the following functional activities commonly associated with PFP stair ascent or descent, squatting, kneeling, or prolonged sitting;
• Reports of pain greater than 2 months in duration.
• Being between 18-40 years of age

You may not qualify if:

• Previous history of knee surgery,
• History of patellar instability,
• Neurologic involvement that would influence gait

Sponsors & Collaborators

• Bahçeşehir University: lead

Study Sites (1)

Istanbul University,Faculty of Medicine, Deparment of Orthopedics and Traumatology, Gait Analysis Laboratory

Istanbul, Europe, 34093, Turkey (Türkiye)

Location

Related Publications (4)

• Patil S, Dixon J, White LC, Jones AP, Hui AC. An electromyographic exploratory study comparing the difference in the onset of hamstring and quadriceps contraction in patients with anterior knee pain. Knee. 2011 Oct;18(5):329-32. doi: 10.1016/j.knee.2010.07.007. Epub 2010 Aug 17.

  PMID: 20724165 BACKGROUND

• Cowan S.M , Bennell K.L., Hodges P.W, Mc Connel J (2000). The test-retest reliability of the onset of concentric and eccentric vastus medialis obliquus and vastus lateralis electromyographic activity in a stair stepping task. Physical Therapy in Sport. 1, 129-136.

  BACKGROUND

• Ng EC, Chui MP, Siu AY, Yam VW, Ng GY. Ankle positioning and knee perturbation affect temporal recruitment of the vasti muscles in people with patellofemoral pain. Physiotherapy. 2011 Mar;97(1):65-70. doi: 10.1016/j.physio.2010.05.009.

  PMID: 21295240 BACKGROUND

• Li G, DeFrate LE, Zayontz S, Park SE, Gill TJ. The effect of tibiofemoral joint kinematics on patellofemoral contact pressures under simulated muscle loads. J Orthop Res. 2004 Jul;22(4):801-6. doi: 10.1016/j.orthres.2003.11.011.

  PMID: 15183437 BACKGROUND

MeSH Terms

Conditions

Patellofemoral Pain Syndrome

Interventions

Electromyography

Condition Hierarchy (Ancestors)

Joint Diseases; Musculoskeletal Diseases

Intervention Hierarchy (Ancestors)

Electrodiagnosis; Diagnostic Techniques and Procedures; Diagnosis; Myography

Study Officials

• Dilber Karagozoglu Coskunsu, Ass. Prof.

  Bahcesehir University, Faculty of Health Sciences, Department of Physiotherapy and Rehabilitation

  PRINCIPAL INVESTIGATOR

• Filiz Can, Prof.

  Hacettepe University, Faculty of Health Sciences, Department of Physiotherapy and Rehabilitation

  STUDY DIRECTOR

• Necla Ozturk, Prof.

  Maltepe University, Faculty of Medicine, Deparment of Biophysics

  STUDY CHAIR

• N. Ekin Akalın, Prof.

  Kultur University, Faculty of Health Sciences, Department of Physiotherapy and Rehabilitation

  STUDY CHAIR

Study Design

• Study Type: interventional
• Phase: not applicable
• Allocation: NON RANDOMIZED
• Masking: SINGLE
• Who Masked: OUTCOMES ASSESSOR
• Masking Details: The algorithm used to calculate the onset of the EMG was identified according to the point at which the signal deviated by more than three times standard deviations, for a minimum of 25 ms from the baseline level (computing started 200 ms prior to the start of walking). MatLab program (R2011 version) was used for design a custom made program for data analysis. Additionally to automatic calculation, all data was visually checked to ensure that there was no signal noise, deteriorating the signal analysis, possibly caused by the movement artefact. A blind assessor visualy checked the onsets of the MH and LH muscles and record the onset time.
• Purpose: SCREENING
• Intervention Model: PARALLEL
• Sponsor Type: OTHER
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: Assistant Professor

Model Details: Participants which were included in the study were divided into 2 groups as patient group who included the patients diagnosed with Patellofemoral pain and asymptomatic group which was considered as control group.

Study Record Dates

• First Submitted: December 20, 2017
• First Posted: January 8, 2018
• Study Start: January 21, 2014
• Primary Completion: May 30, 2015
• Study Completion: July 1, 2015
• Last Updated: January 8, 2018

Record last verified: 2018-01

Data Sharing

• IPD Sharing: Will share
• Shared Documents: STUDY PROTOCOL
• Time Frame: starting 6 months after publication

Locations

TU (1)