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An Objective and Child-friendly Assessment of Arm Function by Using a 3-D Sensor
Published on: February 12, 2018
Cost efficiency comparison of four video-based techniques for assessing upper arm postures.
Mahmoud Rezagholi1, Svend Erik Mathiassen, Per Liv
1Department of Occupational and Public Health Sciences, Centre for Musculoskeletal Research, University of Gävle, Gävle, Sweden. madrei@hig.se
Ergonomics
|March 14, 2012
Summary
Workplace posture assessment using video techniques can be cost-efficient. Labor-saving work sampling methods, despite potential errors, often prove most economical for upper arm posture analysis.
Area of Science:
- Ergonomics
- Occupational Health
- Human Factors Engineering
Background:
- Video-based methods are increasingly used for workplace posture assessment.
- Evaluating these techniques based on cost-efficiency is crucial for practical application.
- Upper arm posture analysis is important for preventing musculoskeletal disorders.
Purpose of the Study:
- To compare the cost-efficiency of four video-based techniques for assessing upper arm postures.
- To identify the most economical method for posture assessment in an occupational setting.
Main Methods:
- Four video-based techniques were evaluated using cost and error data.
- Data was collected from hairdressers performing their work.
- Labor costs, measurement bias, and measurement strategy were considered.
Main Results:
- Labor costs were the dominant factor in cost-efficiency comparisons.
- Work sampling techniques, despite larger errors, were generally more cost-efficient due to being labor-saving.
- Measurement bias and strategy influenced the overall economic evaluation.
Conclusions:
- Labor-saving techniques, such as work sampling, are often the most cost-efficient for upper arm posture assessment.
- A comprehensive evaluation considering labor costs, hidden costs, bias, and measurement strategy is necessary for selecting the optimal technique.
