Anthropometrics: Important Aspects of Users’ Bodies - Foundations for Designing User-Centered Systems - page 58

Avoid glare,
direct and indirect

Position display
about arm's length and
with line of sight shown

18-24 inches

Shoulders relaxed

0 o

Do not hold phone
with shoulder

Support wrists
when not typing

Wrists in line with forearm (not bent)

No lip
on chair

Arms and legs 90 o
from your spine

Feet flat on foor or supported

Fig. 3.4 Useful information about how to arrange a computer display and work area to avoid
wrist and upper limb disorders (ULDs). Contains public sector information published by the
Health and Safety Executive and licensed under the Open Government Licence v1.0

Fig. 3.5 Postures to be avoided when web browsing. Placement of non-mousing (e.g., left)
elbow on chair armrest or workstation desk, results in direct contact pressure (reproduced with
permission from English and Andre 1999 )