Page 185 - Hospital Authority Convention 2018

Parallel Sessions

PS10.1 Technology Advancement and Innovation 13:15 Room 423 & 424

An Innovative Measurement in Musculoskeletal Rehabilitation Using 3 D Motion Analysis
1
2
1
Wong CNC , Kam LSW Yeung AKC , Tsang SMH 2
1
Physiotherapy Department, Prince of Wales Hospital, Hong Kong
2
Department of Rehabilitation Sciences, The Hong Kong Polytechnic University, Hong Kong HOSPITAL AUTHORITY CONVENTION 2018
Low back pain (LBP) is the most common condition referred to adult physiotherapy outpatient department (OPD). Movement
analysis by therapists forms an integral part of our assessment, together with other primary outcome measures such as
Numeric Pain Rating Scale (NPRS) and Roland Morris Disability Questionnaire (RMDQ). Clinical measurement of lumbar
motion has traditionally been focused only on the range of motion (ROM). However, movement dysfunctions associated with
LBP are more profoundly displayed in angular velocities and accelerations compared to ROM. Impaired movement pattern,
especially manifests in decreased velocity in forward bending has been consistently found in various studies. Findings of
a recent study conducted in our centre showed a significant reduction in velocity, aberrant pattern of centre of pressure
(COP) and electromyography (EMG) of the lumbopelvic muscles in people with LBP when performing forward bending
tasks. However, routine application using 3D motion capturing system (Vicon system) for objective movement analysis is
practically difficult in demanding clinical settings. To overcome this challenge, we explored the applicability of a handy and
portable industrial-grade tri-axial inertial sensors (the LORD micro-strain 3DM-GX5-25) in measuring the 3D-kinematics of
lumbo-pelvic movement in healthy individuals and patients with LBP. Studies were conducted to examine the reliability of
this clinic-based inertial sensor device for measuring ROM, angular velocities and accelerations when the LBP sufferers
perform different functional activities. Results showed that the tri-axial inertial system is a highly practical tool which offers
reliable and useful data for revealing the lumbo-pelvic movement impairments in demanding physiotherapy OPD setting. This
approach is also proposed to be used in the rehabilitation of various musculoskeletal conditions involving peripheral joints.

Tuesday, 8 May 2018

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