BMI BODY MASS INDEX. BODY FAT AND LEAN MASS
Supplements for promoting weight control
Supplements for promoting muscle mass
The World Health Organization (WHO) classifies body weight using the Body Mass Index (BMI stands for Body Mass Index) calculated by dividing weight in kilograms by the square of height in meters (kg/m2).
The BMI is an indicator of the state body that assesses the risk of disease using the height and weight of the subject under consideration.
Example: If the weight is 80 kg and height is 160 cm BMI will be: 80: (1.6 x 1.6) = 31.25.
The reference values are calculated considering as normal weight population range resulted in reduced risk of developing conditions that your body weight is recognized as a risk factor. Among the major diseases related to being overweight are cardiovascular disease, diabetes, hypertension, osteoarthritis, some cancers. The subjects classified as underweight are at greater risk of osteoporosis, fractures, cardiac arrhythmias.
OSHA BMI
Underweight <18.5
Normal weight 18.5 to 24.9
Overweight 25 to 29.9
Slightly Obesity Class I from 30 to 34.9
Moderate Obesity Class II from 35 to 39.9
Severe obesity class III> 40
BMI assesses the proportion of height / weight, but does not analyze the percentage of fat mass and lean mass of the individual.
The mass is lean muscle tissue, is very rich in water (about 60%) and greatly influences the metabolism. The more muscle we have, the more calories we burn, both at rest and during exercise.
The fat mass is the adipose tissue, is poor in water and does not burn calories, even if a part covers the heart and other organs. A percentage of fat mass must always be present in quantities greater for women than men, because a higher percentage of body fat in women is related to sexual and reproductive function.
In fact a woman anorexic or un'obesa serious begin to no longer have the menstrual cycle due, in the first, of a lack of fat mass, responsible for the function and, in the second, of an excessive amount of the same.
The percentage of fat mass and lean mass can be measured through specific instruments such as skinfold and impedenziometria.
But what should be the percentage of lean mass and fat?
The essential fatty is content in the bone marrow, in some tissues of the heart, lungs, spleen, kidney, intestine, muscle and in some parts of the nervous system.
The essential fat is metabolically used by the tissues.
The percentage of this fat is different for the two sexes:
3% men - 12% women
Fat storage
It 's the subcutaneous fat and the fat that covers the entrails and protects them from mechanical point of view.
Even in this case, the percentage of fat is different for the two sexes, but to a lesser extent than for the primary fat:
12% men - 15% women (Source: Model Behnke)
Although the average percentage for the West are:
23% men - 32% women
MALE AND FEMALE STANDARD (Model Behnke)
MALE 15% TOT 3% MIN
FEMALE 27% TOT 12% MIN
MALE AND FEMALE STANDARD
(Recommended values and average values)
MALE ideal value 15%
value min. 8%
MALE (Attn physical liv. Competitive) ideal value. 5-8%
value min. 3%
MALE (Average Western man) val. average 23%
FEMALE ideal value 23%
value min. 15%
FEMALE (Attn physical liv. Competitive) ideal value 12 - 15%
value min. 12%
FEMALE (Female western media) val. average 32%
The percentages of fat mass higher than the ideal values, but in line with the average values, not entail particular problems of health.
Supplements for promoting weight control
Supplements for promoting muscle mass