Com
f
or
t
and Sa
f
e
t
y Check
li
s
t
10
Co
m
f
or
t
a
nd
S
a
f
e
t
y
Ch
ec
k
li
s
t
•
H
a
nds,
W
ris
t
s
,
Fo
rearms
-
T
r
y
to
k
eep
y
ou
r
h
a
nds
w
r
i
sts
a
nd
f
o
r
e
a
r
m
s
i
n
a
r
e
l
a
xed neut
r
a
l
pos
i
t
i
on
w
hen us
i
n
g
y
ou
r
m
ouse
k
e
y
b
o
a
r
d o
r
othe
r
i
nput de
vi
ces. Fo
r
ex
am
p
l
e,
w
h
il
e us
i
n
g
y
ou
r
k
e
y
b
o
a
r
d
a
nd
m
ouse,
r
est
y
ou
r
f
o
r
e
a
r
m
s (
fl
a
t) on
y
ou
r
des
k
top.
•
L
eg
s
-
Y
ou
r
th
ig
hs shou
l
d
b
e ho
r
iz
ont
a
l
o
r
a
n
gl
ed s
lig
ht
ly
do
w
n
w
a
r
d.
Y
ou
r
l
o
w
e
r
l
e
g
s shou
l
d
b
e ne
a
r
a
r
ig
ht
a
n
gl
e to
y
ou
r
th
ig
hs.
M
a
k
e su
r
e
the
r
e
i
s su
ffi
c
i
ent
r
oo
m
unde
r
the
w
o
r
k
su
r
f
a
ce
f
o
r
y
ou
r
l
e
g
s.
•
Fee
t
-
If
a
f
te
r
a
d
j
ust
i
n
g
y
ou
r
ch
a
i
r
y
ou c
a
nnot
r
est
y
ou
r
f
eet co
m
f
o
r
t
ab
ly
on the
fl
oo
r
, use
a
f
oot
r
est, p
r
e
f
e
r
ab
ly
one th
a
t c
a
n
b
e
a
d
j
usted
i
n he
ig
ht
a
nd
a
n
gl
e.
Overa
ll
•
L
oo
k
a
w
a
y
f
r
o
m
the sc
r
een
f
r
o
m
t
i
m
e
-
to
-
t
i
m
e to he
l
p
r
educe e
y
est
r
a
i
n.
Focus on d
i
st
a
nt o
b
j
ects
b
r
i
e
fly
,
a
nd
b
li
n
k
pe
r
i
od
i
c
a
lly
to
l
u
b
r
i
c
a
te
y
ou
r
e
y
es.
Y
ou
a
l
so shou
l
d h
a
v
e
y
ou
r
e
y
es chec
k
ed on
a
r
e
g
u
l
a
r
ba
s
i
s
a
nd
ensu
r
e
y
ou
r
e
y
e
gl
a
ss p
r
esc
r
i
pt
i
on
i
s su
i
t
ab
l
e
f
o
r
w
o
r
k
i
n
g
on
a
co
m
pute
r
m
on
i
to
r
.
•
R
e
m
e
mb
e
r
to occ
a
s
i
on
a
lly
sh
if
t pos
i
t
i
on
a
nd
m
o
v
e
y
ou
r
b
od
y
.
K
eep
i
n
g
y
ou
r
b
od
y
i
n one pos
i
t
i
on
f
o
r
l
on
g
pe
r
i
ods
i
s unn
a
tu
r
a
l
a
nd st
r
ess
f
u
l
.
W
hen p
r
o
l
on
g
ed
w
o
r
k
i
s
r
e
q
u
i
r
ed, t
a
k
e
f
r
e
q
uent sho
r
t
b
r
e
a
k
s.
A
s
a
r
u
l
e
o
f
thu
mb
,
a
fiv
e o
r
ten
m
i
nute
b
r
e
a
k
e
v
e
r
y
hou
r
i
s
a
g
ood
i
de
a
.
S
ho
r
t
f
r
e
q
uent
b
r
e
a
k
s
a
r
e
m
o
r
e
b
ene
fi
c
i
a
l
th
a
n
l
on
g
e
r
l
ess
f
r
e
q
uent
b
r
e
a
k
s.
D
a
t
a
sho
w
th
a
t peop
l
e
w
ho
w
o
r
k
f
o
r
l
on
g
pe
r
i
ods o
f
t
i
m
e
wi
thout
a
b
r
e
a
k
ma
y
b
e
m
o
r
e p
r
one to e
r
g
ono
m
i
c
i
n
j
u
r
y
.
•
C
h
a
n
gi
n
g
t
a
s
k
s
f
r
e
q
uent
ly
will
he
l
p p
r
e
v
ent
m
usc
l
e st
iff
ness. Ex
am
p
l
es
:
a
l
te
r
n
a
t
i
n
g
b
et
w
een
k
e
y
b
o
a
r
d
i
n
g
,
r
e
a
d
i
n
g
,
w
r
i
t
i
n
g
,
fili
n
g
,
a
nd
m
o
vi
n
g
a
r
ound
i
n
y
ou
r
w
o
r
k
en
vi
r
on
m
ent, he
l
ps
y
ou
ma
i
nt
a
i
n
a
r
e
l
a
xed
postu
r
e.
O
cc
a
s
i
on
a
lly
st
r
etch the
m
usc
l
es
i
n
y
ou
r
h
a
nds,
a
r
m
s,
shou
l
de
r
s, nec
k
a
nd
ba
c
k
.
Y
ou shou
l
d st
r
etch
a
t
l
e
a
st
a
s o
f
ten
a
s
y
ou
t
a
k
e
b
r
i
e
f
t
a
s
k
b
r
e
a
k
s
—
a
t
l
e
a
st once e
v
e
r
y
hou
r
.
•
Di
sco
m
f
o
r
t
ma
y
b
e
a
ll
e
vi
a
ted
b
y
us
i
n
g
a
l
te
r
n
a
t
iv
e e
r
g
ono
m
i
c des
ig
ns
a
nd
a
ccesso
r
i
es such
a
s e
r
g
ono
m
i
c
a
lly
pe
r
son
a
liz
ed ch
a
i
r
s, p
a
l
m
r
ests,
k
e
y
b
o
a
r
d t
r
a
y
s,
a
l
te
r
n
a
t
iv
e
i
nput de
vi
ces, p
r
esc
r
i
pt
i
on e
y
e
gl
a
sses,
a
nt
i-
gl
a
r
e sc
r
eens,
a
nd
m
o
r
e.
S
ee
k
a
dd
i
t
i
on
a
l
i
n
f
o
r
ma
t
i
on
f
r
o
m
the sou
r
ces
a
v
a
il
ab
l
e to
y
ou,
i
nc
l
ud
i
n
g
y
ou
r
e
m
p
l
o
y
e
r
, docto
r
,
l
oc
a
l
o
ffi
ce supp
ly
sto
r
e,
a
nd the
I
n
f
o
rma
t
ion Sou
rces
li
sted
i
n the on
li
ne
v
e
r
s
i
on o
f
W
o
r
k
ing in
C
o
m
f
o
r
t
,
p
r
e
l
o
a
ded on the h
a
r
d d
i
s
k
o
f
y
ou
r
H
P co
m
put
i
n
g
e
q
u
i
p
m
ent o
r
a
v
a
il
ab
l
e on the
H
P
w
e
b
s
i
te
:
www.hp.com/ergo
Summary of Contents for e-Vectra
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