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A new method for calculating saddle seat height with an emphasis on optimal posture based on trigonometric relations

Babaei H., Razeghi M., Choobineh A., Pakshir H., Rajaeifard A., Rezaian J.

International Journal of Occupational Safety and Ergonomics

2016

Vol. 22, No. 4

565--571

Introduction. Based on the literature, the ergonomic saddle chair provides the most appropriate posture for users. Determination of the seat height is critical to establish the proper posture, carried out using various methods of anthropometry. This study aimed to develop a simple and applied method for determining the saddle seat height with an emphasis on appropriate posture. Methods. In this study, anthropometric dimensions including weight, body height, popliteal height and seat height at 135° knee angle in 150 male and female dentists were measured. In the laboratory, to determine the ‘acetabuloischial number’, 25 male and female natural hip bones were measured. The mean saddle-chair height with knee angle of 135° was then compared by two different methods, field measurement and the new calculation method. Results. The results showed a strong correlation between data gathered from the two different methods, the field measurement and the new calculation method (98%), and Cronbach’s α from the intraclass correlation was equal to 0.994 (p < 0.05). This indicated that the two methods produced similar results. Conclusion. The new method can be applied to calculate the optimal height of the saddle seat based on body height and popliteal height.

Badania antropometryczne kończyny górnej oraz pomiar siły ścisku dłoni i kciuka

Łopatka M., Guzik-Kopyto A., Michnik R., Rycerski W.

Aktualne Problemy Biomechaniki

2012

z. 6

93--98

The area of cooperation between clothing manufacturers and resthe area of cooperation between clothing manufacturers and research centres in Poland

Grandys E.

Autex Research Journal

2006

Vol. 6, no. 2

108--112

The most urgently needed cooperation between Polish clothing manufacturers and research centres is that on anthropometric studies of the population as well as a permanent improvement of managers’ knowledge. This article has two parts; the first discusses the existing anthropometric tables in Poland, presents modern ways of carrying out new surveys and provides grounds for this action. The second part explains, within the context of market Europeanisation, why managers have to expand their knowledge resources, and outlines the main points where this knowledge may be subject to verification.