A preliminary study on quality of knee strength measurements by means of Hand Held Dynamometer and Optoelectronic System

Andrea Ancillao, Stefano Rossi, Fabrizio Patane, Paolo Cappa

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

Strength measurements are popular in the clinical practice to evaluate the health status of patients and quantify the outcome of training programs. Currently a common method to measure strength is based on Hand Held Dynamometers (HHD) which is operator-dependent. Some studies were conducted on repeatability of strength measurements but they were limited to the statistical analysis of repeated measurements of force. In this work, the authors developed a methodology to study the quality of knee flexion/extension strength measurements by measuring the effective HHD position and orientation with respect to the patient. HHD positioning attitude was measured by means of an Optoelectronic System for which a marker protocol was defined ad-hoc. The approach allowed to assess quality of measurements and operator's ability by means of quantitative indices. The protocol permitted the evaluation of: angles of HHD application, angular range of motion of the knee and range of motion of the HHD. RMSE parameters allowed to quantify the inaccuracy associated to the selected indices. Results showed that the operator was not able to keep the subject's limb completely still. The force exerted by the subject was higher in knee extension and the knee range of motion was higher than expected, however the operator had more difficulties in holding the HHD in knee flexion trials. This work showed that HHD positioning should be as accurate as possible, as it plays an important role for the strength evaluation. Moreover, the operator should be properly trained and should be strong enough to counteract the force of the subject.

Original languageEnglish
Title of host publication2015 IEEE International Symposium on Medical Measurements and Applications, MeMeA 2015 - Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages595-599
Number of pages5
ISBN (Print)9781479964765
DOIs
Publication statusPublished - Jun 30 2015
Event2015 IEEE International Symposium on Medical Measurements and Applications, MeMeA 2015 - Torino, Italy
Duration: May 7 2015May 9 2015

Other

Other2015 IEEE International Symposium on Medical Measurements and Applications, MeMeA 2015
CountryItaly
CityTorino
Period5/7/155/9/15

Fingerprint

Dynamometers
Optoelectronic devices
Statistical methods
Health

Keywords

  • Hand Held Dynamometer
  • Motion capture
  • Optoelectronic system
  • Quality assurance
  • Strength

ASJC Scopus subject areas

  • Biomedical Engineering
  • Computer Science Applications

Cite this

Ancillao, A., Rossi, S., Patane, F., & Cappa, P. (2015). A preliminary study on quality of knee strength measurements by means of Hand Held Dynamometer and Optoelectronic System. In 2015 IEEE International Symposium on Medical Measurements and Applications, MeMeA 2015 - Proceedings (pp. 595-599). [7145273] Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/MeMeA.2015.7145273

A preliminary study on quality of knee strength measurements by means of Hand Held Dynamometer and Optoelectronic System. / Ancillao, Andrea; Rossi, Stefano; Patane, Fabrizio; Cappa, Paolo.

2015 IEEE International Symposium on Medical Measurements and Applications, MeMeA 2015 - Proceedings. Institute of Electrical and Electronics Engineers Inc., 2015. p. 595-599 7145273.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Ancillao, A, Rossi, S, Patane, F & Cappa, P 2015, A preliminary study on quality of knee strength measurements by means of Hand Held Dynamometer and Optoelectronic System. in 2015 IEEE International Symposium on Medical Measurements and Applications, MeMeA 2015 - Proceedings., 7145273, Institute of Electrical and Electronics Engineers Inc., pp. 595-599, 2015 IEEE International Symposium on Medical Measurements and Applications, MeMeA 2015, Torino, Italy, 5/7/15. https://doi.org/10.1109/MeMeA.2015.7145273
Ancillao A, Rossi S, Patane F, Cappa P. A preliminary study on quality of knee strength measurements by means of Hand Held Dynamometer and Optoelectronic System. In 2015 IEEE International Symposium on Medical Measurements and Applications, MeMeA 2015 - Proceedings. Institute of Electrical and Electronics Engineers Inc. 2015. p. 595-599. 7145273 https://doi.org/10.1109/MeMeA.2015.7145273
Ancillao, Andrea ; Rossi, Stefano ; Patane, Fabrizio ; Cappa, Paolo. / A preliminary study on quality of knee strength measurements by means of Hand Held Dynamometer and Optoelectronic System. 2015 IEEE International Symposium on Medical Measurements and Applications, MeMeA 2015 - Proceedings. Institute of Electrical and Electronics Engineers Inc., 2015. pp. 595-599
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