Picture of athlete cycling

Open Access research with a real impact on health...

The Strathprints institutional repository is a digital archive of University of Strathclyde's Open Access research outputs. Strathprints provides access to thousands of Open Access research papers by Strathclyde researchers, including by researchers from the Physical Activity for Health Group based within the School of Psychological Sciences & Health. Research here seeks to better understand how and why physical activity improves health, gain a better understanding of the amount, intensity, and type of physical activity needed for health benefits, and evaluate the effect of interventions to promote physical activity.

Explore open research content by Physical Activity for Health...

Visual estimation of joint angles at the elbow

Abu-Rajab, R.B. and Marsh, A. and Young, D. and Rymaszewski, L.A. (2010) Visual estimation of joint angles at the elbow. European Journal of Orthopaedic Surgery and Traumatology, 20 (6). pp. 463-467. ISSN 1633-8065

[img]
Preview
PDF (strathprints018704.pdf)
strathprints018704.pdf

Download (217kB) | Preview

Abstract

The aim of this study was to assess the accuracy of visual estimation of elbow joint angles. A total of 116 observers (93 doctors and 23 physiotherapists) were shown 21 digital images of two arms in predeWned degrees of elbow Xexion on two separate occasions. They estimated the angle of Xexion to the nearest 5°. Only 70.8% of estimates were within +5°, although intra-observer agreement was good among all groups tested (ICC range 0.963- 0.983). Orthopaedic consultants and registrars were equivalent and statistically better at estimating the angles compared to senior house oYcers and physiotherapists (P < 0.001). Compared to the angles of 85 and 90°, all other angles were signiWcantly less likely to be estimated to within +5° (P < 0.001). In conclusion, visual estimation of joint angles at the elbow may not be desirable in cases where accurate serial assessment is required for clinical decision making. The use of a goniometer by an agreed standardized protocol is advised.