Research of Temperature and Moisture during Sitting on Office Chairs

Abstract

Istraživanje temperature i vlage pri sjedenju na uredskim radnim stolicama Received -prispjelo: 22. 12. 2011. Accepted -prihvaćeno: 16. 5. 2012 674.23 doi:10.5552/drind.2012 Original scientifi c paper • Izvorni znanstveni rad

Performance Assessment of a Humidity Measurement System and Its Use to Evaluate Moisture Characteristics of Wheelchair Cushions at the User–Seat Interface

“…Initial studies of wheelchair or office seat surface (or cushion) materials were based upon humidity probes [ 6 , 7 ], which have inherent drawbacks including being obtrusive and difficult to accurately place in relation to specific regions of interest. We have previously reported use of discrete, small humidity sensors [ 8 ], placed at anatomically relevant locations (under both thighs and ischial tuberosities as well as under the coccyx) to study the relative humidity (RH) changes when sitting on a standard foam cushion.…”

Evaluation of Office Chair Comfort

“…It should be noted that the characteristics of upholstery are important for comfort and proper distribution of pressure (Ergić, 2002;Grbac and Ivelić, 2005). Thermal conductivity and humidity penetration to the upholstery are very important and signifi cantly affect the comfort feeling (Vlaović et al, 2012). However, they have not been taken into consideration in this paper.…”

Thermal Comfort While Sitting on Office Chairs – Subjective Evaluations

“…Material make of all seats was non-hygroscopic. Detailed seat characteristics are presented in by Vlaović et al (2012).…”

“…It could be said that the use of this system in the seats with thin upholstery is limited. Namely, probe size is relatively large with respect to the thickness of the seat, and therefore horizontal embedding is needed to avoid "moving" from the defi ned measuring point (see paper: Vlaović et al (2012), Fig. 3b).…”

“…The second goal of this research was to establish correlations between subjective and objective results into thermal comfort while sitting. Besides the basic research, in its last part, the paper presents the correlations with objective measurements of temperature and moisture while sitting on the same type of chair (results published by Vlaović et al, 2012).…”