The imaging modalities that take up more time of labor working are the GR and CT,
in descending order.
These being featured in tasks of patient positioning and computer work,
in both study sites.
However,
the frequency of computing takes up more time working in CT modality.
90% of these workers performing work under shift work and most (75%) have a 35-39 hours weekly schedule.
There was a 50% prevalence of symptoms on musculoskeletal disorders at Radiographer for at least one anatomical region.
Regarding the most affected anatomical regions these correspond to lower back (24%) and neck (18%).
About 58% of professionals reported visual impairment,
the stress situations is the one that happens more "often",
and headaches were referred as situations that happens "sometimes",
along with the stress.
Difficulty to concentrating has a higher weight then stress at the institution B.
Around 45% of Radiographers at Institution A admitted that noise affects,
"occasionally",
their job performance,
while 43.8% the workers of institution B considered that their performance is "always" or "often" affected by the noise.
However,
noise levels were below of the regulations.
It was also found that shift changes in CT room,
the ring emergency signal,
and the ringing of service phones were considered as the noisiest.
Regarding thermal symptomatology,
30% said their presence,
at least in one of them,
and it was found that most reported symptoms in workstation of GR,
with the highest percentage for the institution B,
and with situations of drowsiness (25%) and fatigue (18.8%).
As for the design of workplaces and equipment/furniture,
these were,
in general,
ergonomically well designed,
except in certain situations,
such as the lack of adjustable workplans,
the display screens were not orientation and tilt adjustable freely and easily in positions of GR and the line of workers sight coincides,
mostly in the middle of the screen,
rather than at the top.
It was also found that the higher percentages of thermal discomfort were experienced in CT room,
due to the heating equipment (50%) (figure 2).
Regarding light,
we registered very low values that could impair performance near some workstations (figure 3).