Thesis

Comparison of a single-camera system with the 3D Vicon system on the upper limb coordination and trunk compensation in stroke survivors

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Awarding institution
  • University of Strathclyde
Date of award
  • 2014
Thesis identifier
  • T13906
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Abstract
  • Stroke is one of the major causes of physical disability in adults worldwide. Upper limb (UL) is commonly impaired after stroke, with most of patients experiencing acute or chronic hemiparesis. New rehabilitation treatments for more effective recovery of the hemiparetic upper limb function have triggered the interest of clinical researchers. Impairment and disability in clinical settings is generally assessed by ordinal scales such as the Fugl-Meyer Assessment, Action Research Arm Test etc. but they provide low sensitivity and reliability. Within recent years, scientific researchers have focused increasing attention on measuring upper limb kinematics in order to obtain an objective evaluation of the effectiveness of rehabilitation treatment following stroke. Three- dimensional analysis provides quantitative assessment of upper limb motion however, it is far to be commonly diffused in clinical practice since it is quite expensive and need high-structured laboratories. The purpose of this study is to compare a cheap, portable single- camera system to the 3D Vicon system on the assessment of upper limb motion in stroke patients. Five healthy participant and five stroke patients took part in this study. Participants were asked to perform a reach to grasp movement in a series of five trials. A single- camera system (210 Hz) and a 12-camera Vicon 3D motion analysis system (100 Hz) were employed to simultaneously capture the reaching task. Upper limb coordination (% percentage) and forward trunk tilt (degrees) were the parameters under investigation. Statistical analyses show an overall good agreement between the measurement systems for both the parameters. However, it appears that the 2D single camera is more accurate in measuring trunk tilt than upper limb coordination in stroke patients. This study introduces the use of a cheap single camera system in clinical settings for the assessment of upper limb motion in stroke patients enabling future studies to establish it as evaluation outcome measure in research field.
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DOI
Date Created
  • 2014
Former identifier
  • 1041987

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