Saturday, 30 June 2012

Bioelectrial Impedance Analysis (BIA) - Stacey

How it works: 
BIA measures the impedance or resistance to the signal as it travels through the water that is found in muscle and fat. The more muscle a person has, the more water their body can hold. The greater the amount of water in a person's body, the easier it is for the current to pass through it. The more fat, the more resistance to the current.

- Easy to use
- Portable 
- Relatively low cost 

- Less accurate than those used clinically or in nutritional and medical practice
- Tend to under-read body fat percentage

Why is it my preferred method?
It is not very costly and very accessible. It provides a quick and much less invasive choice of assessing body composition as the subject is only required to expose only the back of the wrist and the hand and foot to get results. Compared to the hydrostatic underwater weighing method which is gold standard test, this test is much more accessible and cheaper as the hydrostatic underwater weighing method is rare and are mostly available to athletes and for scientific research.

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