| The effect of chair designs on sitting pressure distribution and tissue perfusion. | |
| | |
MedLine Citation:
|
PMID: 23397814 Owner: NLM Status: In-Process |
Abstract/OtherAbstract:
|
OBJECTIVE: The aim of this study was to investigate the effect of five chair designs on interface pressure distribution and tissue perfusion in the buttock-thigh region. BACKGROUND: Prolonged sitting has been found to contribute to the symptoms of work-related low back pain. Studies have found that chair design affects users' sitting posture and comfort. As sitting applies pressure to the user, it is necessary to investigate how chair design affects sitting pressure and tissue perfusion during sitting. METHOD: We tested five chair designs (Suspension A, Suspension B, Foam A, Foam B, and bicompliant) on 15 young, healthy females. Sitting interface pressure and buttock-thigh tissue perfusion (in terms oftranscutaneous partial pressure of oxygen and carbon dioxide, tcPO2 and tcPCO2, respectively) were measured during 10-min sitting on each chair. RESULTS: We found that chair design significantly affected the distribution of the sitting pressure (p < .001) and buttock-thigh tissue perfusion (p < .023). Average pressure and total contact area were found highest in both foam designs, and the average pressure was the lowest in one of the suspension designs. Across all tested chair designs, the anterior portion of the seat sustained the lowest contact pressure. It was also found that tcPO2 was the lowest (p < .003) and tcPCO2 was the highest (p < .001) in tissue around ischial tuberosity for all chair designs. CONCLUSION: Chair design and materials of the seat significantly affect the sitting interface pressure distribution and tissue perfusion in sitting area. Further evaluation of these outcomes may provide useful information to correlate chair design with sitting comfort. |
| | |
Authors:
|
Mohsen Makhsous; Fang Lin; David Hanawalt; Shannon Lynn Kruger; Angie LaMantia |
Related Documents
:
|
17797494 - Internal winds in water lilies: an adaptation for life in anaerobic sediments. 17539444 - Echocardiography in military oxygen divers. 12909594 - Neuronal sensitivity to hyperoxia, hypercapnia, and inert gases at hyperbaric pressures. 12788664 - Chronic high pressure potentiates the antiproliferative effect and abolishes contractil... 18929714 - Autonomic heart rate control at rest and during unloading of the right ventricle in rep... 22719804 - Particle depositions and related hemodynamic parameters in the multiple stenosed right ... |
Publication Detail:
|
Type: Journal Article |
Journal Detail:
|
Title: Human factors Volume: 54 ISSN: 0018-7208 ISO Abbreviation: Hum Factors Publication Date: 2012 Dec |
Date Detail:
|
Created Date: 2013-02-12 Completed Date: - Revised Date: - |
Medline Journal Info:
|
Nlm Unique ID: 0374660 Medline TA: Hum Factors Country: United States |
Other Details:
|
Languages: eng Pagination: 1066-74 Citation Subset: IM; S |
Affiliation:
|
Department of Physical Therapy and Human Movement Sciences, Chicago, IL 60611, USA. m-makhsous2@northwestern.edu |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
|
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: Estimating 3-D L5/S1 moments during manual lifting using a video coding system: validity and interra...
Next Document: Individual differences and their impact on the safety and the efficiency of human-wheelchair systems...