Body reactions during chain saw work.

Body reactions during chain saw work.

Body reactions during chain saw work were studied in 14 subjects. The subjects divided into three groups (control, sulpiride, and propranolol) successively cut down logs with a chain saw for seven minutes. The start of the sawing led to a pronounced increase in heart rate which persisted during the sawing. The groups taking sulpiride and propranolol showed a smaller increase in heart rate compa...

Vascular responses in chain saw operators.

The intensive use of chain saws is associated with development of the hand-arm vibration syndrome (vibration white finger). Objective testing for cold induced vasospasm was carried out on the fingers of 12 chain saw operators and 12 matched control men from a similar working environment. Two of the chain saw operators tested positive for vasospasm in the laboratory and another three had an abno...

Chain reactions

yet to find an argument that has convinced the public that GM is a green revolution we can ill afford to miss out on. Until ministers do so, GM crops will remain a much talked about idea, but never an eaten foodstuff.” “Proven: environmental dangers that may halt GM revolution” headed The Independent’s coverage. “British scientists delivered a massive blow to the case for genetically modified c...

Hand grip forces during chain saw operation and vibration white finger in lumberjacks.

The hand grip forces at the front and rear handles of a chain saw were measured during work, in 89 professional lumberjacks. The symptoms caused by vibration to the upper limbs were compared with the hand grip force (HGF) during work. To allow better comparison between subjects we used the ratio of hand grip force (HGF) to the maximal voluntary compression force (MVC), HGF/MVC expressed as a pe...

Cold response of digital arteries in chain saw operators.