It is familiar in the consumer . Fat -free mass contains mostly water, while fat contains very little water. Thus, fat-free mass will have less resistance . On the other han the body also contains non-conducting materials ( body fat ) that provide resistance to the flow of electric current. Body fat measurement by bioelectrical impedance and air displacement plethysmography: a cross-validation study to design bioelectrical impedance.
The electrical signal passes quickly through water that present in hydrated muscle tissue but meets resistance when it hits fat tissue.
This resistance , known as impedance, is measured and input into scientifically validated Tanita equations to calculate body composition measurements.
Depending on the monitor, body . As BIA determines the resistance to flow of the current as it passes through the body, it provides estimates of body water from which body fat is calculated . Effect of resistance exercise on percent body fat using leg- to-leg and segmental bioelectrical impedance analysis in adults. Author information: (1)Department of Health Science, Lock Haven University, Lock . BIA exhibits greater resistance to electrical . After resistance and reactance are determine their values can be used to estimate body composition based on specific predictive equations for each clinical situation and for each . Follow the instructions of your particular device. The proportion of body fat can be calculated as the current flows more easily through the parts of the body that are composed . Phase angle is based on total body resistance and reactance and is independent of height, weight and body fat. Impedance is greatest in fat tissue, which. Lower phase angles appear to be . Equations must be used to convert the electrical measurement to an estimate of TBW or percentage of body fat.
To permit assess ment of the primary data, as well as to allow local application of new or improved computational models where available, all instruments should report the directly measured resistance and . This multi-frequency analysis has many advantages. A small electrical current is passed through your body, allowing the electrical resistance of your body to be measured. Bioelectrical impedance measurement of body fat is based on the principle that lean body mass conducts electricity better than fat body mass.
Along with the electrical resistance , . Due to the greater electrolyte content of FFM, it offers less resistance to electric current compared to fat tissue. Thus, resistance , or impedance to electric current, directly relates to the amount of FFM. Fat mass is then calculated by subtracting FFM from total body mass. Skinfold equations, on the other han provide estimates . The total impedance is the total sum of impedance of different tissues.
It was thought that if individual impedance is measure then the different components of the body could be . Estimates of body water are fundamental for bioelectrical impedance analysis ( BIA), which measures electrical resistance to estimate total body water and body composition. To permit assess�ment of the primary data, as well as to allow local application of new or improved computational models where available, all instruments should report the directly measured resistance and . The more fat, the more resistance to the current. In fact, the signal used in body fat monitors cannot be felt at all by either adult or child. BIA is safe and it does not hurt.
Why is Body Composition Important to My Health? Research has shown that body composition is directly related to health. A normal balance of body fat is . When you step on sensors on the scale, an imperceptible electrical current passes up one leg, across the pelvis and then down the other leg. Because it contains much more water, muscle conducts electricity better than fat does, so the greater the resistance , the more body fat you have.
To calculate the body composition using the result of bio electrical impedance ( BIA) at 50.
No comments:
Post a Comment
Note: only a member of this blog may post a comment.