Physical workload, output of cut wood, and perceived exertion were studied among 15 younger and 16 older lumberjacks, using a chainsaw and paid on a piece-rate basis
2007
Physical workload, perceived exertion, and output of cut wood as related to age in motor-manual cutting
Key concepts
Scholarcy highlights
- Physical workload, output of cut wood, and perceived exertion were studied among 15 younger and 16 older lumberjacks, using a chainsaw and paid on a piece-rate basis
- Oxygen consumption was measured with portable equipment, while heart rate was measured telemetrically
- The oxygen consumption for all working phases was 1·8 ± 0·2 1/min and 1·5 ± 0·2 1/min, which corresponded to 49 ± 4% and 53 ± 7% of maximal oxygen consumption estimated in ergometer bicycle exercise test
- A negative relationship was found between relative oxygen consumption at work and maximal oxygen consumption
- The heart rate differed between the working phases, and was significantly higher for both groups during bunching than during the other operations
- Slight but significantly relationships were found between output of cut wood and maximal oxygen consumption and oxygen consumption during work
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