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Instructions and guarantee
GB
English
GB
English
ELECTRONIC PERSONAL SCALE WITH INDICATOR OF % OF FAT AND % OF WATER
A new electronic personal scale that allows to evaluate your body composition and to
automatically calculate the body fat and water percentage in function of your height, age
and sex.
The exact knowledge of your body composition (c alculation of lean body mass, fat body
mass and total body water contents), allows a correct estimate of the excess fat and at the
same time determines the advisable weight as a function of your nutritional condition.
Furthermore, the knowledge of your body composition allows to combine a correct nutrition
and physical activity as essential conditions to improve the quality of life, promote health
and prevent pathologies. It has a memory function with a 10-person capacity.
Capacity 180 kg / 396 lb / 28 st 4 lb, divisione 100 g / 0.1 lb / 0.1 lb (< 10 st) 1 lb (> 10 st)
Laica S.p.A. - Viale del Lavoro, 10 - Fraz. Ponte - 36021 Barbarano Vicentino (VI) - ITALY
Made in China
Warning!
• The body fat and water percentage is to be considered only as approximate
information.
For any further information, please consult your physician or dietician.
• Self-measuring means control, it does not mean diagnosis or treatment.
Any unusual levels should always be discussed with your doctor.
Under no circumstances must you change the dose of medicines prescribed
by your Doctor.
IT IS IMPORTANT TO CAREFULLY READ THE INSTRUCTIONS AND WARNINGS
IN THIS BOOKLET BEFORE USE AND TO KEEP THE BOOKLET IN A SAFE PLACE.
BODY COMPOSITION
It is important to know the body composition of an individual in order to be able to estimate
his/her health condition.
Actually, it is not enough to know one’s weight but it is necessary to define its quality, which
means dividing the human body in its two major component masses:
• lean body mass: bones, muscles, viscera, water, organs, blood;
• fat body mass: adipose cells.
Under the same conditions of weight, these two masses have different volumes.
By means of electrodes placed on the platform, the scale sends a weak low intensity electric
current that passes through the body mass. The electric current reacts in a different way
according to the masses it passes through: the lean body mass opposes a weak resistance,
while the fat body mass has a greater resistance.
This body resistance, called bioelectrical impedance, varies also in function of sex, age
and height.
For a correct control of one’s ideal weight, it is important, besides the weight, to compare
the body fat percentage calculated by the scale, with the parameters contained in the table
and the body water percentage, with the information listed hereinafter.
If the percentages are outside the normal values, we suggest you to consult
your doctor.
In order to better understand the value of your body fat percentage, we suggest you write
down this value for a given period of time. In order to obtain a valid comparison, you should
weigh yourself always at the same time of the day and under the same conditions. The best
moment to weigh yourself is in the morning, before breakfast, without clothes. You have to
wait 15 minutes after getting up, so that the water get distributed itself throughout the body.
Body fat mass percentage
The percentage of fat listed in the following table, represents the total fat, calculated by
summing up the essential fat (or primary fat) and the spare fat (or storage fat). The essential
fat is necessary since it is needed for the metabolism.
The percentage of this fat is different between the two sexes: about 4% for men and about
12% for women (percentage calculated on the total body weight).
The spare fat, which is theoretically superfluous, is necessary in a minimum quantity for a
healthy condition, especially for those who carry out physical activities.
Even in this case, the fat percentage is different between the two sexes: 12% for men, 15%
for women (percentage calculated on the total body weight).
Therefore, the normal percentage of fat mass on the body weight is approximately 16% for
men and 27% for women. Such percentages differ with the person’s age as shown in the
table here below.
BODYF A T T ABLE
Age Excellent Good Fit Overweight
15-39 <11% 11.1-23% 23.1-31% >31.1%
40-59 <12% 12.1-24% 24.1-32% >32.1%
60-79 <13% 13.1-25% 25.1-33% >33.1%
15-39 <20% 20.1-32% 32.1-38% >38.1%
40-59 <21% 21.1-33% 33.1-39% >39.1%
60-79 <22% 22.1-34% 34.1-40% >40.1%
MAN
WOMAN
Water percentage
Water is the main component of lean body mass; the water percentage over the fat body
mass is 73%. The lean body mass is obtained by subtracting from the total weight the fat
body mass (for instance for a 25-year old man, with a fat body mass of 17%, lean body
mass is equivalent to 83%).
About 60% of the body weight is made up by water: it therefore represents the fundamental
component of every living being and it is necessary to keep us alive.
Women (having normally more adipose tissue than men), have a water percentage of about
55-58%, while men have about 60-62% of it.
The water percentage is greater in chi ldhood (at birth it varies from 70 to 77%), and it
decreases with age (in old people the percentage varies from 45% to 55%) and with the
increase of fat deposits.
Obese people have a lower body water percentage than lean people.
Refer to this data to compare the obtained percentage.
Water accomplishes many biological functions:
• it promotes the digestive processes;
• it is a thinner for substances that are important for the organism;
• it removes metabolic wastes;
• it carries oxygen, nutrients, enzymes, hormones and glucose to the cells;
• it is a source of mineral salts;
• it regulates the body temperature.
The human organism excretes every day a given quantity of water, which must be regularly
replaced; a water loss of approximately 10% of the body weight, may put at risk the health
condition. Body weight variations, may occur throughout short (hours), medium (days) or
long (weeks) periods.
Small weight variations that take place in a few hours, are completely normal and are due
to water retention, since the extra-cellular water (which includes interstitial fluid, plasma,
lymph and transcellular fluid) is the only compartment subject to such rapid variations.
When a weight reduction occurs in a few days, it is very likely that it affected the total water
amount (distributed by approximately 60% inside the cells - intracellular water - and by
approximately 40% outside the cells - extracellular water-) and therefore, it also affected
the lean body mass. To conclude, the fat body mass is subject to variations which can be
recorded in weeks.
Therefore, in order to evaluate the progression of one’s body composition it
is necessary to keep in mind that:
• a weight reduction by itself, accompanied by an unchanged or even increased
body fat percentage, shows that the body has simply lost water (for instance
after a training session, a sauna or a diet that is limited to rapid weight
loss).
• a weight increase accompanied by a decreasing or unchanged body fat
percentage, shows the development of precious muscular mass.
• when weight and body fat decrease at the same time, it means that the diet
is effective and that we are also losing volume.
• when there is a high percentage of fat or a reduced muscular mass, the body
water percentage is always too low.
Warning!
When following a diet, it is necessary to expect a reduction in the fat body
mass and not in the muscular mass.
Examples of body composition
Person 1
Entered data: man, 185 cm tall, 39 years old.
Data calculated by the scale: Weight 105 kg , Bodyfat 30.3%, Bodywater 51%
Analysis of body composition: An overweight body composition results from the table. Let’s
study in any case the analysis in deep.
The percentage of lean mass is 69.7% (100%-30.3%). Body fat consists of:
• essential fat => 105 kg x 4%= 4.2 kg
• reserve fat => 105 kg x 12%= 12.6 kg
Total body fat (essential fat + reserve fat) is 4.2+12.6 kg = 16.8 kg, which compared to the
total body weight (105 kg) is equal to 16% (ideal % of fat mass for person 1).
The difference between 30.3% (actual % of fat mass) and 16% (ideal % of fat mass) is
14.3%, which applied to the total weight (105 kg) is equal to 15 kg.
15 kg represent the kg in defect of person 1.
The water percentage of 51% is low compared to the normal percentage that must have the
men but it is due to the high percentage of fat mass and then a reduced muscular mass.
TIPS FOR USE
• Place the scale on a flat, hard surface.
Soft, uneven flooring (e.g. rugs, carpets, linoleum) can cause the scale to giv e an uneven
reading of your weight.
• Step onto the scale with your feet parallel and weight equally distributed (see illustrations).
Stand still while the scale measures your weight.
• It is important to weight yourself with dry, bare feet, correctly positioned on the electrodes
(see illustrations). Moreover, for the scale to work properly, avoid your legs touching.
• The scale does not show any danger, since it works with 4 x 1,5V alkaline
batteries.
However, the following people should avoid using it:
- those fitted with a pace-maker or other forms of electronic, medical
equipment
- those with a temperature
- children under the age of 10
- pregnant woman
- those in dialysis, with edemas on their legs, people with dimorphism or
suffering from osteoporosis.
- people on cardiovascular medication.
• Always weigh yourself on the same scale every day at the same time, undressed and
before breakfast.
To get the best results from your scale, weight yourself twice, and if the two weights are
different from each other, your weight is between the two readings.
Wait for about 15 minutes after getting up, so that the water can distribute through around
your body.