Related Experiment Video
Updated: Oct 17, 2026

Measurement of the Hand Transmitted Vibration of the Human Hand Arm System During Operation of a Hand Tractor
Published on: June 16, 2021
Relationship between vibration dose and the absorption of mechanical power in the hand
1National Institute for Working Life, Department of Technical Hygiene, Umeå, Sweden. Lage.Burstrom@niwl.se
Objectives:
The aim of this study was to examine the relationship between calculated vibration dose and the measured absorption of vibration power in the human hand, as well as the measured grip and feed forces applied by the subjects.
Methods:
The study was carried out with 10 healthy subjects. A special handle was used during the measurements. The influence of 4 different vibration levels with different durations during a test period of 5 minutes was investigated. The number of exposure intervals varied between 1 and 5. The same overall equivalent acceleration was used in all the experiments.
Results:
There is a significant difference between the calculated vibration dose and the amount of measured absorption of power. A higher acceleration level leads to significantly higher absorption. Furthermore, the outcome shows that rest periods contribute to a lower absorption of power in the hand and also lower feed forces. Conclusions This study supports the hypothesis that vibration-free rest periods give the human organism an opportunity to recover.
Related Concept Videos
Forced Oscillations
Power Expended by a Constant Force
Sound Intensity
Energy and Power of a Wave
Waves can also be concentrated or spread out, as characterized by the intensity of the wave. Intensity is directly...
Transmission Shafts: Problem Solving
Next, use bending moment diagrams for the shaft to...
Work and Power for Rotational Motion
Similarly, the power delivered to a system that is rotating about a fixed axis is given by the...

