Ergonomic risk factors were assessed through
direct observation of employees’ postures at their
workstations using the rapid upper limb assessment
(RULA) tool (McAtamney and Corlett,
1993). RULA is a validated tool that assesses
biomechanical and postural loading on the upper
limbs. The RULA scoring system generates an
action list indicating the level of intervention
required to reduce the risks of injury