What a RULA assessment does
RULA (Rapid Upper Limb Assessment) is a posture-screening method developed by McAtamney and Corlett in 1993, designed to evaluate exposure to risk factors associated with upper-limb work-related disorders. It scores the upper arm, lower arm, wrist, neck, trunk, and legs against postural ranges, then combines posture scores with muscle-use and force scores into a final action grade.
Soter automates the photo-to-score step. The Safety Professional reviews and signs off, the same as with manual RULA. The action grade is mapped to a control set so the assessment closes with assignments, not just scores.
When RULA is the right standard
- Workstations with sustained upper-limb postures (assembly, packing, light machining)
- Tasks where the lower body is largely static and the upper body carries the load
- Office and retail-counter ergonomic reviews where NIOSH lifting math does not apply
- Pre/post-intervention measurement when redesigning a workstation
86%
UFA cut ergonomic injuries
Canadian agricultural co-op · multi-site rollout · combined RULA + REBA workflows on SoterAI
How the Soter workflow runs in about 20 minutes
- Capture the task. Photo or 30-60 second video of the workstation. Worker visible from a side angle for arm scoring is ideal.
- Score upper-limb posture. Automated angle extraction for upper arm, lower arm, wrist; combined with muscle-use and force inputs from a short prompt.
- Get a final action grade (1-7). Grade 1-2 is acceptable, 3-4 needs further investigation, 5-6 needs investigation and changes soon, 7 needs immediate changes.
- Get ranked controls per grade. Engineering controls (workstation redesign, tool changes), administrative (rotation, micro-breaks), and posture coaching for short-cycle tasks.
- Assign, track, close. Owner, due date, and verification step. RULA is not closed until the action grade drops on a follow-up assessment.
Who uses this workflow
- EHS leads at manufacturing plants with assembly or packing lines
- Office ergonomics teams supporting return-to-office and hybrid setups
- Insurance loss-control consultants assessing claimants' workstations
- Construction site safety leads reviewing fixed-position rebar tying or finishing tasks
50-70%
Blackmores Group cut EHS admin
Australia, wellness manufacturer · admin reduction across ergonomic and incident workflows on SoterAI
What you get when you sign up
- Full RULA action grade with the underlying posture score breakdown
- Ranked engineering, administrative, and behavioral controls per grade
- Side-by-side before-and-after view when re-scoring after intervention
- Exportable RULA report PDF matching McAtamney and Corlett 1993 layout
- Site-level dashboard of action grades by role, shift, and task type