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Faleij, Ragnar
Publications (2 of 2) Show all publications
Karvelis, P., Röijezon, U., Faleij, R., Georgoulas, G., Mansouri, S. S. & Nikolakopoulos, G. (2017). A Laser Dot Tracking Method for the Assessment of Sensorimotor Function of the Hand. In: 2017 25th Mediterranean Conference on Control and Automation, MED 2017: . Paper presented at 2017 25th Mediterranean Conference on Control and Automation (MED), Valletta, Malta, July 3-6, 2017 (pp. 217-222). Piscataway. NJ: Institute of Electrical and Electronics Engineers (IEEE), Article ID 7984121.
Open this publication in new window or tab >>A Laser Dot Tracking Method for the Assessment of Sensorimotor Function of the Hand
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2017 (English)In: 2017 25th Mediterranean Conference on Control and Automation, MED 2017, Piscataway. NJ: Institute of Electrical and Electronics Engineers (IEEE), 2017, p. 217-222, article id 7984121Conference paper, Published paper (Refereed)
Abstract [en]

Assessment of sensorimotor function is crucial during the rehabilitation process of various physical disorders, including impairments of the hand. While moment performance can be accurately assessed in movement science laboratories involving highly specialized personnel and facilities there is a lack of feasible objective methods for the general clinic. This paper describes a novel approach to sensorimotor assessment using an intuitive test and a specifically tailored image processing pipeline for the quantification of the test. More specifically the test relies on the patient being instructed on following a zig-zag pattern using a handled laser pointer. The movement of the pointer is tracked using image processing algorithm capable of automating the whole procedure. The method has potential for feasible objective clinical assessment of the hand and other body parts

Place, publisher, year, edition, pages
Piscataway. NJ: Institute of Electrical and Electronics Engineers (IEEE), 2017
Series
Mediterranean Conference on Control and Automation, ISSN 2325-369X
National Category
Signal Processing Medical and Health Sciences Other Health Sciences
Research subject
Signal Processing; Health Science
Identifiers
urn:nbn:se:ltu:diva-64955 (URN)10.1109/MED.2017.7984121 (DOI)000426926300036 ()2-s2.0-85028511995 (Scopus ID)9781509045334 (ISBN)
Conference
2017 25th Mediterranean Conference on Control and Automation (MED), Valletta, Malta, July 3-6, 2017
Available from: 2017-08-04 Created: 2017-08-04 Last updated: 2018-04-04Bibliographically approved
Röijezon, U., Faleij, R., Kravelis, P. S., Georgoulas, G. & Nikolakopoulos, G. (2017). A new clinical test for sensorimotor function of the hand: development and preliminary validation. BMC Musculoskeletal Disorders, 18(1), Article ID 407.
Open this publication in new window or tab >>A new clinical test for sensorimotor function of the hand: development and preliminary validation
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2017 (English)In: BMC Musculoskeletal Disorders, ISSN 1471-2474, E-ISSN 1471-2474, Vol. 18, no 1, article id 407Article in journal (Refereed) Published
Abstract [en]

Background

Sensorimotor disturbances of the hand such as altered neuromuscular control and reduced proprioception have been reported for various musculoskeletal disorders. This can have major impact on daily activities such as dressing, cooking and manual work, especially when involving high demands on precision and therefore needs to be considered in the assessment and rehabilitation of hand disorders. There is however a lack of feasible and accurate objective methods for the assessment of movement behavior, including proprioception tests, of the hand in the clinic today. The objective of this observational cross- sectional study was to develop and conduct preliminary validation testing of a new method for clinical assessment of movement sense of the wrist using a laser pointer and an automatic scoring system of test results.

Methods

Fifty physiotherapists performed a tracking task with a hand-held laser pointer by following a zig-zag pattern as accurately as possible. The task was performed with left and right hand in both left and right directions, with three trials for each hand movement. Each trial was video recorded and analysed with a specifically tailored image processing pipeline for automatic quantification of the test. The main outcome variable was Acuity, calculated as the percent of the time the laser dot was on the target line during the trial.

Results

The results showed a significantly better Acuity for the dominant compared to non-dominant hand. Participants with right hand pain within the last 12 months had a significantly reduced acuity (p < 0.05), and although not significant there was also a similar trend for reduced Acuity also for participants with left hand pain. Furthermore, there was a clear negative correlation between Acuity and Speed indicating a speed-accuracy trade off commonly found in manual tasks. The repeatability of the test showed acceptable intra class correlation (ICC2.1) values (0.68-0.81) and standard error of measurement values ranging between 5.0–6.3 for Acuity.

Conclusions

The initial results suggest that the test may be a valid and feasible test for assessment of the movement sense of the hand. Future research should include assessments on different patient groups and reliability evaluations over time and between testers.

Place, publisher, year, edition, pages
BioMed Central, 2017
National Category
Physiotherapy Control Engineering
Research subject
Physiotherapy; Control Engineering
Identifiers
urn:nbn:se:ltu:diva-65853 (URN)10.1186/s12891-017-1764-1 (DOI)000412087400003 ()28950843 (PubMedID)2-s2.0-85029843657 (Scopus ID)
Note

Validerad;2017;Nivå 2;2017-09-27 (andbra)

Available from: 2017-09-27 Created: 2017-09-27 Last updated: 2018-07-10Bibliographically approved
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