REBA method

The REBA method uses a systematic process to assess the risks of musculoskeletal disorders (MSDs) to the whole body and ergonomic design risks associated with work.

The left and right sides are evaluated separately from the results of the different body segments to obtain an overall postural risk score.

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REBA method PDF
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Reba PDF

Automates your ergonomic analyses with Nawo Live, with access to multiple methods and ergonomic standards.

The REBA quotation grid

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The REBA method (Rapid Entire Body Assessment) is used to assess the different body postures required, energetic efforts, the type of movement or action, repetition and difficulty of taking. A score is assigned to each of the following body regions: wrists, forearms, elbows, shoulders, neck, trunk, back, legs and knees.

The method tables are then used to compile the risk factor variables generating a single score representing the risk level of MSD.

The REBA method provides a scoring system for muscle activity caused by static, dynamic, changing or unstable postures. It gives an intervention threshold with an indication of the emergency.

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Restrictions and limitations

This method is not recommended for evaluating manual handling tasks.

The REBA method examines strengths and activity, but it mainly focuses on work postures.

It does not take into account the duration of the activity, the recovery period, or the vibrations.

It is only designed to assess the right side and the left side of the body separately, and there is no method for combining scores to obtain a result for the whole body.

The cumulative effects of all activities performed in the course of a job or task are not taken into account.

The REBA method does not allow precise evaluation of the tasks linked to small manipulations of objects with the hands.

It does not make it possible to assess tasks requiring long travel or very varied and unpredictable tasks.

This method lacks precision in analysing the frequency of efforts or certain postures very specific to production.


Step 1 – Analysis of the request

Analysis of the request and development of the criteria for choosing the work situations to be observed.

Step 2 – Observation of the workstations

Observation of all the elements of the workstation (the gestures of the operator, the tools used).

Identification of possible interactions between the different elements.

Selection of the posture to be evaluated.

Step 3 – Activity

Assessment of critical postures using RULA-type postural assessment methods to estimate their risk levels.

Step 4 – Processing the results of the analysis

Analysis of the postural data making it possible to draw up the list of priorities and to seek solutions and proposals for improvement.

Step 5 – Formulation of improvements

Formulation of improvements based on the results of the analysis and implementation of corrective measures taking into account the identified risks.

Step 6 – Reassessment of the work situation

A new assessment of the workstation makes it possible to study the impact, and benefits, of the corrective measures on the postural risk.

Interested in REBA method ?

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Apply the REBA method with Nawo Live

Nawo Live is your physical activity risk assessment tool for identifying risk factors for musculoskeletal disorders (MSDs).

From Nawo Live, automate and evaluate all biomechanical risk factors using reference methods (RULA, REBA, NIOSH, etc.).

Nawo Live guarantees you a reliability of the measurements acquired by our systems:

  • Automation of MSD risk factor calculations
  • Reliability of acquired data
  • Saves time by analysing thousands of postures
  • Statistics exportable in Excel format providing decision support