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Salter 9172 Manual

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BODY WATER -WHY MEASURE IT?
Body water is the single most important component of body weight. It represents over
half of your total weight and almost two thirds of your lean body mass (predominantly
muscle). Water performs a number of important roles in the body:
All the cells in the body, whether in the skin, glands, muscles, brain or anywhere else,
can only function properly if they have enough water. Water also plays a vital part in
regulating the body’s temperature balance, particularly through perspiration.
The combination of your weight and fat measurement could appear to be ‘normal’ but
your body hydration level could be insucient for healthy living.
NORMAL HEALTHY RANGE OF BODYWATER PERCENTAGE
Body Water Chart***
BF % Range Optimal BW % Range
Men
4 to 14% 70 to 63%
15 to 21% 63 to 57%
22 to 24% 57 to 55%
25 and over 55 to 37%
Women
4 to 20% 70 to 58%
21 to 29% 58 to 52 %
30 to 32 % 52 to 49%
33 and over 49 to 37%
***Source: Derived from Wang & Deurenberg: “Hydration of fat-free body mass”.
American Journal Clin Nutr 1999, 69 833-841.
For those using Athlete Mode: note that athletes may have a lower body fat range and a
higher body water range than shown above, depending on their type of sport or activity.
Body water measurement results are influenced by the proportion of body fat and
muscle. If the proportion of body fat is high, or the proportion of muscle is low then the
body water results will tend to be low. It is important to remember that measurements
such as body weight, body fat and body water are tools for you to use as part of your
healthy lifestyle. As short term fluctuations are normal, we suggest you chart your
progress over time, rather than focus on a single days reading.
The Body Water % ranges published are for guidance only. Professional medical
guidance should always be sought before embarking on diet and exercise programmes.
WHY SHOULD I KNOW MY MUSCLE MASS?
According to the American College of Sports Medicine (ASCM), lean muscle mass may
decrease by nearly 50 percent between the ages of 20 and 90. If you don’t do anything to
replace that loss you’re losing muscle and increasing fat. It is also important to know
your muscle mass % during weight reduction. At rest, the body burns approximately 110
additional calories for each kilo of muscle gained. Some advantages of gaining muscle
mass include:
• Reversing the decline in strength, bone density and muscle mass that accompanies age
• Maintenance of flexible joints
• Guide weight reduction when combined with a healthy diet.
This product is for domestic use only. Pregnant women should only use the weight function.
CAUTION : Do not use this product if you have a pacemaker or other medical device
fitted. If in doubt, consult your doctor.
WHAT DOES MY BMI VALUE MEAN?
Body Mass Index (BMI) is an index of weight-for-height that is commonly used to
classify underweight, overweight and obesity in adults. This scale calculates your BMI
value for you. The BMI categories shown in the chart and table below are recognised by
the WHO (World Health Organisation) and can be used to interpret your BMI value.
Your BMI category can be identified using the table below.
BMI Category BMI Value Meaning Health Risk Based Solely On BMI
< 18.5 Underweight Moderate
18.6- 24.9 Normal Low
25- 29.9 Overweight Moderate
30+ Obese High
IMPORTANT: If the chart/table shows that you are outside of a ‘normal’ healthy weight
range, consult your doctor before taking any action. BMI classifications are for adults
(age 20+ years) only.
QUESTIONS & ANSWERS
How exactly is my body fat and water being measured?
This Salter Scale uses a measurement method known as Bioelectrical Impedance
Analysis (BIA). A minute current is sent through your body, via your feet and legs. This
current flows easily through the lean muscular tissue, which has a high fluid
content, but not easily through fat. Therefore, by measuring your body’s impedance (i.e.
its resistance to the current), the quantity of muscle can be determined. From this, the
quantity of fat and water can then be estimated.
What is the value of the current passing through me when the measurement
is taken? Is it safe?
The current is less than 1mA, which is tiny and perfectly safe. You will not be able
to feel it. Please note however, that this device should not be used by anyone with
an internal electronic medical device, such as a pacemaker, as a precaution against
disruption to that device.
If I measure my body fat and water at dierent times during the day, it can
vary quite considerably. Which value is correct?
Your body fat percentage reading varies with body water content, and the latter changes
throughout the course of the day. There is no right or wrong time of the day to take a
reading, but aim to take measurements at a regular time when you consider your body
to be normally hydrated. Avoid taking readings after having a bath or sauna, following
intensive exercise, or within 1-2 hours of drinking in quantity or eating a meal.
My friend has a Body Fat Analyser made by another manufacturer.
When I used it I found that I got a dierent body fat reading. Why is this?
Dierent Body Fat Analysers take measurements around dierent parts of the body and
use dierent mathematic algorithms to calculate the percentage of body fat.
The best advice is to not make comparisons from one device to another, but to use the
same device each time to monitor any change.
How do I interpret my body fat and water percentage readings?
Please refer to the Body Fat and Water tables included with the product. They will guide
you as to whether your body fat and water reading falls into a healthy category
(relative to your age and sex).
What should I do if my body fat reading is very ‘high?
A sensible diet, fluid intake and exercise program can reduce your body fat percentage.
Professional medical guidance should always be sought before embarking on such
a program.
Why are the body fat percentage ranges for men and women so dierent?
Women naturally carry a higher percentage of fat than men, because the make-up of the
body is dierent being geared towards pregnancy, breastfeeding etc.
What should I do if my water percentage reading is ‘low’?
Ensure that you are regularly taking sucient water and work towards moving your fat
percentage into the healthy range.
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IB-9172-0911-01.indd 3 28/09/2011 09:02
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