Please use this identifier to cite or link to this item:
Title: Pelvic movement and interface pressure distribution during manual wheelchair propulsion
Authors: Tam, EW 
Mak, AF
Lam, WN
Evans, JH
Chow, YY
Keywords: Pressure
Pressure ulcers
Spinal cord injuries
Issue Date: 2003
Publisher: W.B. Saunders
Source: Archives of physical medicine and rehabilitation, 2003, v. 84, no. 10, p. 1466-1472 How to cite?
Journal: Archives of physical medicine and rehabilitation 
Abstract: OBJECTIVE: To investigate the movement of the ischial tuberosities and the redistribution of interface pressure during manual wheelchair propulsion.
DESIGN: Measurement of ischial tuberosity positions and comparison with corresponding position of the zones of peak pressure by using independent samples t tests. Analysis of variance was used to compare peak and average pressures under static and dynamic conditions.
SETTING: Human locomotion laboratory.
PARTICIPANTS: Ten subjects with spinal cord injury (SCI) and 10 individuals with no disabilities.
INTERVENTIONS: Manual wheelchair propulsion on a stationary wheelchair ergometer at the subject's maximum propulsion speed.
MAIN OUTCOME MEASURES: Seat interface pressure and the 3-dimensional position of the pelvis were measured with a pressure mat and an optical motion analysis system.
RESULTS: During wheelchair sprinting, the ischia were located at 19.2+/-11.7 mm behind the corresponding peak pressure locations. The anteroposterior rocking of the pelvis was 11.2 degrees and 5.2 degrees for the normal and SCI group, respectively. The average interface pressure over the ischial tuberosity area was lower under dynamic conditions. It was also observed in the SCI group that there was a concentration of high-pressure gradients around the peak pressure areas of the buttock during dynamic propulsion.
CONCLUSION: Peak pressure locations did not concur exactly with the ischial tuberosities during propulsion. The movements of the ischial bone and the cyclic loading imposed on the tissue underneath the ischial tuberosities during dynamic conditions may have implications for the etiology of decubitus ulcers.
ISSN: 0003-9993
EISSN: 1532-821X
DOI: 10.1016/S0003-9993(03)00269-7
Appears in Collections:Journal/Magazine Article

View full-text via PolyU eLinks SFX Query
Show full item record


Last Week
Last month
Citations as of Aug 15, 2018


Last Week
Last month
Citations as of Aug 16, 2018

Page view(s)

Last Week
Last month
Citations as of Aug 12, 2018

Google ScholarTM



Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.