Table 1 ROSA scoring sections and subsections, score range and risk factors [24]
Section and subsections | Score range | Risk factors |
|---|---|---|
Section A | 2 to 9 | |
Armrest and back support | 2 to 9 | Sum of armrests and back support |
Arm rests | 1 to 5 | Lack of arm support, being too high, presenting hard surface, being too wide or non-adjustable |
Back support | 1 to 4 | Awkward back posture, lack of lumbar support, height of the work surface and non-adjustable back support |
Seat pan height/depth | 2 to 8 | Sum of seat pan height and depth |
Seat pan height | 1 to 5 | Inadequate seat height and insufficient space for legs |
Seat pan depth | 1 to 3 | Inadequate seat depth and non-adjustable seat pan depth |
Section B | 1 to 9 | |
Screen | 0 to 7 | Screen height, screen distance from user, neck awkward posture, presence of glare on screen and lack of document holder |
Phone | 0 to 6 | Phone reach > 30 cm, phone held by neck and shoulder and having no hands-free |
Section C | 1 to 9 | |
Keyboard | 0 to 7 | Awkward wrist postures, keyboard too high and keyboard on non-adjustable platform |
Mouse | 0 to 7 | Long mouse reaching, mouse and keyboard being on different surfaces, mouse pinch grip and the presence of pressure points while mousing |