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Subject: 18 years and over (use as reference values for subjects under 18 years)
Estimated waist circumference
Reliability of estimated waist
circumference measurement
The AB-140 uses the high correlation between
waist circumference at the navel as measured
using a tape measure (abdominal circumference)
and the breadth of the abdomen to calculate the
waist circumference. The regression equation is
formulated based on data from approximately
600 Japanese subjects of a variety of physiques
from infants to athletes, healthy adults and
people with spinal injuries, etc.
The estimated waist circumference measurement
achieves high levels of repeatability and excellent
reliability by utilising a positioning laser and multiple
non-contact sensors.
* The estimated waist circumference is a value for the
waist circumference at the navel (abdominal
circumference). This unit can be used to track
changes in subjects for whom measuring waist
circumference has previously been difficult.
Visceral fat levels
Standards for visceral fat levels
Visceral fat levels are best used to track changes over the long term for effective health
management.
Visceral Fat
1.0 – 6.0
6.5 – 12.5
Bar number
1
Determination
Average
No need for concern at present.
Continue with a balanced diet
Interpretation
and an appropriate amount of
exercise.
* Medical opinion states that when the actual value is more than 130cm
there is a high probability of resultant life-style related disease. A level of 13.0 with this unit generally correlates
to an Visceral fat area of 130cm
.
2
Visceral fat levels measured by this unit.
It is possible for subjects with low trunk % fat percentages to have high visceral fat levels.
Please see a medical practitioner for a medical diagnosis.
32
* This scatter graph is based on 120 healthy males and females.
13.0 – 15.0
15.5 – 17.5
18.0 – 20.0
2
3
4
5
High
Very High
Ensure that an appropriate
Weight loss is required through
amount of exercise is done and
actively engaging in exercise
calorie intake is limited to
and food restrictions. Please
reduce weight to an appropriate
see a medical practitioner for a
level.
medical diagnosis.
2
according to X-ray and CT imaging
What is the trunk % fat percentage?
True obesity is determined not by weight but by trunk % fat percentage.TNot only is body fat a
source of energy for activity, it also maintains body temperature, protects the body from external
impact, provides moisture for our skin, creates a smooth body line and ensures normal hormone
activity, among other functions. An excessively high percentage of body fat, however, causes
hypertension, hyperlipidemia, diabetes and other life-style related conditions.
There is said to be a particularly strong link between life-style related conditions and body fat in the
trunk (trunk % fat ratio). This unit analyses data based on dual energy x-ray absorptiometery
(DXA) which reveals the composition of individual body segments, and determines the trunk % fat
percentage using this analysis as a benchmark. See below for trunk % fat ratio determinations.
* The 'central body' referred to here consists of the head, neck, chest, abdomen and lower back.
Trunk % fat determination
[Females]
Trunk % fat (%)
Standard Deviation Bar Number
<14.2
14.2 ≤ – <24.3
24.3 ≤ – <29.4
29.4 ≤ – <39.5
-1/2SD – +1/2SD
39.5 ≤ – <44.5
+1/2SD – +1SD
44.5 ≤ – <54.6
54.6 ≤ – <64.7
64.7 ≤
* Categories are determined according to average values of adult population samples and standard deviations.
Correlation between DXA trunk % fat percentage and abdominal BIA
trunk % fat percentage
20.5 and more
6
Trunk % fat percentage
[Males]
Determination
Trunk % fat (%)
up to -2SD
2
<7.3
Low
7.3 ≤ – <13.5
-2SD – -1SD
3
13.5 ≤ – <19.7
-1SD – -1/2SD
4
19.7 ≤ – <22.8
5
Average
22.8 ≤ – <29.0
6
29.0 ≤ – <32.1
+1SD – +2SD
7
32.1 ≤ – <38.3
+2SD – +3SD
8
High
38.3 ≤ – <44.5
+3SD or more
9
44.5 ≤
Standard Deviation Bar Number
Determination
up to – -3SD
1
-3SD – -2SD
2
Low
-2SD – -1SD
3
-1SD – -1/2SD
4
-1/2SD – +1/2SD
5
Average
+1/2SD – +1SD
6
+1SD – +2SD
7
+2SD – +3SD
8
High
+3SD or more
9
33
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