Related Experiment Video
Updated: May 28, 2026
In Vivo Measurement of Hindlimb Dorsiflexor Isometric Torque from Pig
Published on: September 3, 2021
Full shift arm inclinometry among dairy parlor workers: a feasibility study in a challenging work environment
David I Douphrate1, Nathan B Fethke, Matthew W Nonnenmann
1Division of Epidemiology, Human Genetics and Environmental Sciences, University of Texas School of Public Health, San Antonio Regional Campus, 7411 John Smith Drive, Suite 1100, San Antonio, TX 78229, USA. david.i.douphrate@uth.tmc.edu
Dairy parlor workers face high risks of shoulder injury due to repetitive tasks and awkward postures. This study measured physical exposures, revealing potentially higher risks than other demanding jobs, necessitating further research for prevention.
Area of Science:
- Occupational Health
- Ergonomics
- Dairy Science
Background:
- The US dairy industry has shifted towards large-scale operations over the past two decades.
- Industrialized milking processes improve efficiency and product quality but create physically demanding tasks.
- Previous research on physical exposures in dairy parlors is limited.
Purpose of the Study:
- To evaluate full-shift upper extremity posture and motion exposures in large-herd dairy parlor workers.
- To identify potential ergonomic risks associated with milking tasks.
Main Methods:
- Utilized wireless inclinometry to measure physical exposures during full work shifts.
- Focused on posture, motion velocity, repetition, and rest periods for upper extremity tasks.
Main Results:
- Large-herd dairy parlor workers exhibit high exposure levels in posture, movement velocity, and repetition.
- Inadequate rest periods were also noted.
- These exposures are linked to an increased risk of shoulder pathology.
Conclusions:
- Dairy parlor workers may experience higher physical exposure levels compared to other shoulder-intensive occupations.
- Findings highlight the need for further field research with larger sample sizes.
- Development of effective, cost-efficient intervention strategies is crucial for mitigating risks.
