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Sencor SBS 6015BK - Introduction to Bioimpedance Analysis; Measurement of Muscle Mass; Measurement of Fat Tissue; Measurement of Water Content

Sencor SBS 6015BK
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Personal
Fitness
Scale
SBS
6015BK
/
SBS
6015WH
INTRODUCTION
This
personal
„fitness“
scale
uses
bioelectric
impedance
analysis
(bioimpedance)
to
measure
the
percentage
of
fat,
muscle,
bone
and
water
content
in
the
body.
In
this
measuring
method,
a
weak
electric
current
passes
through
the
body,
which
is
transmitted
and
subsequently
received
by
sensors
located
on
the
surface
of
the
scale.
There
are
two
sensors
which
are
separated
in
such
a
way
that
the
measuring
circuit
is
completed
when
both
feet
are
standing
on
the
scale.
This
very
weak
current
is
completely
safe
for
the
human
body
and
cannot
be
felt.
The
actual
measurement
methodology
is
based
on
the
fact
that
it is
easier
for
electric
current
to
pass
through
the
liquid
in
our
muscles
than
through
fat.
On
average
the
human
body
contains
45-85
%
water,
whereas
muscles
contain
approximately
90
%
water
and
fat
tissue
contains
approximately
45
%
water.
A
Attention:
For
this
reason
the
percentage
sum
of
the
individually
measured
values
may
exceed
100%.
This
means
that
the
measured
percentage
values
of
fat,
muscle
and
water
content
CANNOT
BE
ADDED
UP
because
both
fat
and
muscle
contain
water.
With
increasing
age
the
water
content
in
the
body
declines,
whereas
infants
may
have
a
water
content
in
their
body
of
up
to
85
%.
With
increasing
age
the
body’s
proteins
dehydrate
and
extracellular
fluid
is
lost.
For
this
reason,
older
people
have
a
water
content
in
their
body
below
the
55%
level.
Productive
age
men
have
an
average
body
water
content
of
62%
and
women
56%.
The
lower
value
for
women
is
the
result
of
their
higher
fat
content.
The
normal
fat
tissue
range
for
men
represents
10-20
%.
For
physiological
reasons,
women
have
a
fat
level
of
18-28
%.
The
percentage
of
fat
increases
with
age,
e.g.
a
level
of
33-35
%
is
tolerated
in
women
over
50
years
of
age.
Measurement
of
muscle
mass
The
percentage
of
muscle
mass
in
the
human
body
is
calculated
on
the
basis
of
subtracting
electrical
resistance
during
measurement,
where
the
fact
that
the
human
body
contains
a
certain
percentage
of
water
at
a
certain
age
is
used.
The
entered
gender,
age
and
body
height
help
to
increase
the
accuracy
of
the
overall
measurement
process.
Measurement
of
fat
tissue
The
difference
between
the
body
weight
and
the
measured
muscle
mass
is
used
to
calculate
the
percentage
of
fat
tissue
contained
in
the
body.
Body
fat
functions
as
an
insulator
(reduces
the
ability
of
electric
current
to
pass
through)
and
therefore
cannot
be
calculated
directly.
Measurement
of
water
content
The
percentage
of
water
contained
in
the
human
body
is
calculated
by
subtracting
electrical
resistance
during
measurement,
where
the
fact
that
electric
resistance
is
directly
proportional
to
the
water
content
in
the
human
body
is
used.
The
entered
gender,
age
and
body
height
help
to
increase
the
accuracy
of
the
overall
measurement
process.
Copyright
©
2012,
Fast
CR,
a.s.
Revision
10/2012

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