Acta Scientiarum Polonorum
Silvarum Colendarum Ratio et Industria Lignaria

ISSN:1644-0722, e-ISSN:2450-7997

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Issue 8 (2) 2009 pp. 53-60

Włodzimierz Stempski

Effect of labour organisation on the level of energy expenditure and static loads of a worker in intermediate cutting

Abstract

The aim of the performed experiments was to assess energy expenditure and static loads of the operator of a chain sawing machine harvesting timber in a pine stand intermediate cutting. The investigations included two technological variants. In variant I, all technological operations were carried out by one worker – operator of the chain saw, while in treatment II the operations were carried out by a team of three persons – two operators of chain sawing machines and a helper. The energy expenditure was determined on the basis of measurements of the ventilation of lungs, whereas the static load – using the OWAS method. The determined net unit energy expenditures of the chain saw operators in the experimental variants exceeded 20 kJ•min-1 and differed statistically significantly between one another. With regard to static loads, a greater proportion of positions negatively affecting the muscle-skeletal system of the operator were found in variant II.

Keywords: timber harvesting, intermediate cutting, physical effort
pub/.pdf Full text available in english in Adobe Acrobat format:
https://www.forestry.actapol.net/issue2/volume/6_2_2009.pdf

For citation:

MLA Stempski, Włodzimierz. "Effect of labour organisation on the level of energy expenditure and static loads of a worker in intermediate cutting." Acta Sci.Pol. Silv. 8.2 (2009): .
APA Stempski W. (2009). Effect of labour organisation on the level of energy expenditure and static loads of a worker in intermediate cutting. Acta Sci.Pol. Silv. 8 (2),
ISO 690 STEMPSKI, Włodzimierz. Effect of labour organisation on the level of energy expenditure and static loads of a worker in intermediate cutting. Acta Sci.Pol. Silv., 2009, 8.2: .
Streszczenie w języku polskim:
https://www.forestry.actapol.net/tom8/zeszyt2/streszczenie-6.html