Functional Surface Electromyogram of Knee Extensors in Healthy Humans and Patients With Patella-dislocation.

NCT00288847 | Completed

• 1 other identifier: LOB_00001_patella
• Study Type: observational
• Target: 15
• Locations: 1 country
• Sites: 1

Brief Summary

The activation of the knee extensors in adults after patella dislocation. The kneecap can dislocate due to an accident or also only due to an interior turn in the stretched knee joint out of its sliding bearing. E. Arendt (Arendt 2002) wrote an overview work, in which possible causes and working methods to the patella dislocation are discussed. Despite almost one hundred quotations the authors are not able find the causes and the possible treatment concepts. The study will examined healthy adults (25 female and 25 men) and 25 patients with patella dislocation by a routine applied clinical gait analysis and surface EMG (after the European SENIAM guidelines) iin the Laboratory for Gait Analysis Basel of the Children's University Hospital Basel. The combination of gait analysis and the surface EMG with Wavelet analysis may objectify possible reasons for a patella dislocation

Conditions

Patella-Dislocation

Keywords

Patella Dislocation; Surface EMG; Gender difference

Eligibility Criteria

• Age: 18 Years - 80 Years
• Sex: all
• Healthy Volunteers: Yes
• Age Groups: Adult (18-64), Older Adult (65+)

You may qualify if:

• Patient: Patella Dislocation before surgery
• Control: healthy

You may not qualify if:

• Patient: Patella Dislocation not able to walk,
• Patient: using orthosis or crutches
• Control: knee injury (e.g. ACL-rupture)
• Control: leg surgery in the last 5 years
• Control: sport injury in the last 6 month (e.g. Muscle pulling)

Sponsors & Collaborators

• University Hospital, Basel, Switzerland: lead
• Lab. for Orthopaedic Biomechanics, University of Basel: collaborator
• University Children's Hospital Basel: collaborator

Study Sites (1)

Lab. for Orthopaedic Biomechanics, University of Basel

Basel, Canton of Basel-City, 4056, Switzerland

Location

Related Publications (6)

• Von Tscharner V, Goepfert B. Estimation of the interplay between groups of fast and slow muscle fibers of the tibialis anterior and gastrocnemius muscle while running. J Electromyogr Kinesiol. 2006 Apr;16(2):188-97. doi: 10.1016/j.jelekin.2005.07.004. Epub 2005 Sep 1.

  PMID: 16139523 BACKGROUND

• von Tscharner V, Goepfert B. Gender dependent EMGs of runners resolved by time/frequency and principal pattern analysis. J Electromyogr Kinesiol. 2003 Jun;13(3):253-72. doi: 10.1016/s1050-6411(02)00111-6.

  PMID: 12706605 BACKGROUND

• von Tscharner V, Goepfert B, Nigg BM. Changes in EMG signals for the muscle tibialis anterior while running barefoot or with shoes resolved by non-linearly scaled wavelets. J Biomech. 2003 Aug;36(8):1169-76. doi: 10.1016/s0021-9290(03)00086-1.

  PMID: 12831743 BACKGROUND

• von Tscharner V, Gopfert B, Wirz D, Friederich NF. [Analysis of wavelet transformed electromyographic signals that were altered by wearing a knee brace]. Biomed Tech (Berl). 2004 Mar;49(3):43-8. doi: 10.1515/BMT.2004.009. German.

  PMID: 15106897 BACKGROUND

• von Tscharner V. Time-frequency and principal-component methods for the analysis of EMGs recorded during a mildly fatiguing exercise on a cycle ergometer. J Electromyogr Kinesiol. 2002 Dec;12(6):479-92. doi: 10.1016/s1050-6411(02)00005-6.

  PMID: 12435545 BACKGROUND

• von Tscharner V. Intensity analysis in time-frequency space of surface myoelectric signals by wavelets of specified resolution. J Electromyogr Kinesiol. 2000 Dec;10(6):433-45. doi: 10.1016/s1050-6411(00)00030-4.

  PMID: 11102846 BACKGROUND

MeSH Terms

Conditions

Patellar Dislocation

Condition Hierarchy (Ancestors)

Joint Dislocations; Joint Diseases; Musculoskeletal Diseases; Wounds and Injuries; Knee Injuries; Leg Injuries

Study Officials

• Beat Goepfert, MEng

  Lab. for Orthopaedic Biomechanics, University of Basel

  PRINCIPAL INVESTIGATOR

• Dieter Wirz, MD

  Lab. for Orthopaedic Biomechanics, University of Basel

  PRINCIPAL INVESTIGATOR

• Alma U Daniels, Ph.D.

  Lab. for Orthopaedic Biomechanics, University of Basel

  STUDY CHAIR

Study Design

• Study Type: observational
• Time Perspective: RETROSPECTIVE
• Sponsor Type: OTHER
• Responsible Party: SPONSOR

Study Record Dates

• First Submitted: February 2, 2006
• First Posted: February 8, 2006
• Study Start: November 1, 2005
• Primary Completion: December 1, 2007
• Study Completion: December 1, 2007
• Last Updated: September 22, 2015

Record last verified: 2015-09

Locations

CH (1)