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| corporate fitness centers, hollywood diet, fisheries management, muscles, asn, calipers, vitaminshak, accu, national library of medicine, buy, cardiotraining, weight loss books, how to measure body fat percentage, schools & universities, sporting goods, mauro, pulse monitor, | From these measurements the amount of fat in the whole body can be estimated. If skinfolds are measured at each eating site on several occasions it is possible to see whether the amount of fat in the different parts of the body has changed. This may be of particular interest to individuals who are taking part in specific exercise programmes to modify their eating shape or perhaps during or after pregnancy, when the distribution of fat across the body is altered. eating BIA involves attaching four electrodes to the subject on the hand and foot on one side of the body. The battery operated devices then measure the voltage drop across the body as a small electric current is applied. Fat acts as an insulator, whereas lean tissue, with its water and salt content acts as a very efficient conductor. |
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| These are very accurate methods calipers but expensive and the analysis is extremely labour intensive. To measure the detailed composition of the whole body takes about 90 minutes scanning time and around 24 hours of calculations for each subject! Simple, rapid and cheap methods to examine body composition include measuring the thickness of subcutaneous fat calipers (skinfold thickness measurement or 'pinch an inch' test) and a newer method calipers called bioelectrical impedance analysis (BIA). These methods are widely used in fitness clubs and in some GP surgeries. Although they are more convenient than the sophisticated methods described above, they are generally also less accurate. However, they give a better estimate of fatness than the BMI alone. Skinfold thicknesses are usually measured at four specific sites of the body; on the front and back of the upper arm (biceps and triceps), on the back beneath the shoulder blade (subscapula) and just above the hip (suprailiac). |
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