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Table 1 Physical exposure at the worker level (measurements/observations in the field)

From: Study protocol title: a prospective cohort study of low back pain

Exposure Type Measurements
General Job title, department, shift length
Pace Self-paced, line-paced, or piece work
Job rotation No. of jobs, duration of each job, title of each job
Prior work experience Title, years on each job, and worker’s Rating of Perceived Exertion (RPE, [49]) for low back and each job
Second job outside facility Title, years on second job, and worker RPE for low back.
Strength Grip, lateral pinch and 3-point pinch for dominant hand
Fatigue Overall worker low back RPE 30minutes after the beginning and 30min before the end of the shift.