Methods & Science
We do not invent new ergonomic standards. We automate the validated ones, so your assessments are defensible to auditors, works councils, and insurers.
When to use: Mixed manual handling, lifting, awkward postures across the full body. Common in manufacturing and warehousing.
Scoring: Joint angles for neck, trunk, legs, upper arm, lower arm, and wrist combine into a single score from 1 (negligible) to 15 (very high risk), with action thresholds at 4, 8, and 11.
When to use: Sitting or standing work focused on hands, arms, neck, and shoulders. Assembly, packaging, computer work.
Scoring: Posture scores from arm, wrist, neck, and trunk combine with muscle use and force into a final score from 1 to 7. Action levels indicate whether change is needed soon or immediately.
When to use: Desk-based roles with chair, monitor, keyboard, mouse, and phone. Used for workstation audits in office or hybrid settings.
Scoring: Chair, monitor + phone, and mouse + keyboard subscores combine into a final ROSA score. A score above 5 indicates the workstation needs further assessment.
When to use: Tasks involving lifting and lowering objects. Used to determine a recommended weight limit and lifting index.
Scoring: Computes a Recommended Weight Limit (RWL) from horizontal, vertical, distance, asymmetry, frequency, and coupling factors. A Lifting Index above 1.0 indicates risk; above 3.0 is high risk.
When to use: Manual handling tasks that involve lifting, holding, or carrying loads. Widely used across German and EU occupational safety practice (BAuA).
Scoring: Combines load weight, posture, and execution conditions with a time or frequency rating into a single risk score, mapped to four risk ranges that flag when ergonomic redesign is needed.
When to use: Initial screening for musculoskeletal disorder risk across back, shoulders/arms, wrists/hands, and neck. Validated for industrial use.
Scoring: Worker and assessor inputs combine into exposure scores per body region. Low, moderate, high, and very high risk thresholds drive prioritization.
When to use: Repetitive-motion tasks where both how often a worker moves and how long they hold a posture matter. Common in production lines.
Scoring: Time-series analysis of trunk and arm posture. Dynamic movements per minute and static-posture dwell time are scored on the TNO traffic light system, adapted to work duration (under 1 hour, 1 to 4 hours, 4 to 8 hours).
When to use: When a full method is overkill, or to cover items outside the standard methods (lighting, layout, training, PPE).
Scoring: Pass/fail or scored items configurable per site. Useful for audits, walkthroughs, and standing programs.
Generic AI ergonomics tools tend to invent their own scoring. When an auditor or a works council asks how a risk score was calculated, an opaque AI answer is not enough.
ErgoRisk runs pose detection on a phone video, derives the joint angles and exposure inputs needed by each standard method, and reports the result in the language EHS teams already write into their reports. The same REBA score, the same NIOSH lifting index, the same scoring tables your physiotherapist would compute by hand, just faster and across more shifts.
That defensibility is the difference between an “AI suggestion” and an action plan you can act on.
Bring a 30 second video of a real task on your floor. We will return a method-by-method assessment in a single demo call.