After 30 years in business, solely dedicated to bioelectrical impedance, we pride ourselves as being experts in the field. We have done this for you. We are a family run business, passionate in what we do. Call us, and we pick up the phone personally, no automated voicemail box. Bodystat measures nutritional status, fat-free mass, body fat and fluid shifts inside the body, non-invasively.
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Why measure Body Fat at all? Percent body fat is known to be a key factor in determining health and fitness. Nutritional status is also determined by the measurement of lean muscle mass, and a decrease in lean muscle mass can lead to a state of malnutrition or even diabetes. Measuring total body weight alone is not a reliable measure of health as it will not distinguish between fat weight and muscle.
For example, the total body weight of a body builder with heavy muscle, and an overweight obese person could be virtually the same, although their state of health is obviously very different.
Carrying too much fat is what makes a person obese, not the weight shown on the scale. Obesity is a known risk for many serious medical conditions including heart disease, diabetes and even certain forms of cancer.
Obesity contributes to at least half the chronic diseases in western society. However, it is not weight that needs to be reduced, rather the amount of body fat a person has. How does Bodystat measure Body Fat? Bio-electrical Impedance technology works by running a small current through the body, measuring the resistance and reactance to the flow of the current.
This data is then processed in the device along with the height, weight, gender and age of the subject. The results for body fat, lean weight and fluid status are then displayed using the measurement and input data. How are the calories calculated? The calories are calculated depending on the gender, age, weight, height and exercise level entered in to the device.
Unlike other calculations, we use the lean weight, which is the metabolically active tissue; therefore, we feel that this provides greater accuracy. The Basal Metabolic Rate is the number of calories required in a day when at rest and the Estimated Average Requirement is the number of calories required when active. All Bodystat devices are automatically programmed to measure adults between the ages of 18 to 70 years.
As with all BIA devices we recommend that you do not use on patients who have an implanted cardiac device such as a pacemaker or who are in the early stages of pregnancy.
Electrodes are only for single use. The electrode gel pick up skin oils, debris and hair which reduce the efficacy of the electrode. Re-using the electrodes will affect the accuracy of the measurements obtained and is also unhygienic. Can I use alternative electrodes other than Bodystat? Bodystat ensures that we use the highest quality electrodes with our devices and these are tested for accuracy and reproducibility. Bodystat cannot guarantee the accuracy or reproducibility of measurements should other brands be used.
In particular with multiple frequency measurements which require a longer size electrode in order to measure at small and high frequencies. Does the size of the electrodes matter? Our dual and multi-frequency devices require a larger surface area to conduct the current and to get the most accurate reading. Using a smaller electrode on these devices can affect the accuracy of the measurement. Can a test be performed by placing electrodes on left side? YES, we suggest the right side only because the heart is on the left side which will increase the resistance.
NOTE: If the left side is selected, they must always use the left side for that patient — this is because impedance values will be slightly higher compared to the right side, due to the heart increasing the resistance on the left.
In day to day clinical application, implants do not have a significant impact on the measurements obtained by BIA. The key to obtaining useful information from BIA devices is to take a bench mark measurement and to track change over a period of time.
Do silicone implants effect the measurements? This has yet to be researched fully, but it is generally thought that implants do effect the results. Although you would still be able to track the change in the results of your client. What is the impact of entering the wrong height? Entering an incorrect height into a measurement can affect the accuracy of the results. If the subject is still in the measurement position, it would be recommended to repeat the measurement as quickly as possible.
What is the effect of nude weight and clothed weight? The weight that you enter on the device is critical. If this is inaccurate then the results you will achieve will be inaccurate.
Can you feel the test while it is being performed? No, the current passed through the body is so small, it is impossible to feel!
Will very dry or very oily skin affect the readings? It can, very good contact between the skin and electrodes must be made. Do any medications affect the reliability of the test? Certain Steroid based medication may affect the test results. Will jewellery affect the test? No, as long as it is located in one spot i. As with weighing yourself, it is best to be consistent and measure around the same time of day, each time you carry out a test.
Can my patient sit during measurement? Measurements are best performed with patient in a relaxed, supine position. If the subject is unable to lay down for medical reasons, then the subject may also sit during the measurement process. However, the feet should be raised, limbs should be straight and not touching in order to achieve an equal distribution of fluids.
How often should I perform the test on my clients? We would recommend that the first test is done at the beginning of the treatment or programme and then followed up by tests at regular periods. What are the pre-test protocols prior to testing? For accurate and reproducible results on repeat tests, it is important that the subject is as normally hydrated as possible.
The following guidelines should ideally be followed wherever possible. No eating or drinking 4 to 5 hours prior to the test No exercise 12 hours prior to the test No alchohol or caffeine consumption 24 hours prior to the test.
In order to ensure that the results are accurate when they are repeated it is important to make sure that the electrodes are placed in exactly the same place as they were for the previous test. Two electrodes are placed on the foot and the hand as illustrated below.
In order to obtain accurate data you must follow the instructions on test protocol. Electrodes should be re-used and must not be cut in half. The red lead is always connected to the electrode closer to the nails, and the black electrodes at the back. Ensure patient is relaxed in the supine position, ensure skin is clean and good electrode contact has been achieved. Check correct electrode placement and check correct connection of patient lead. Try to minimize sources of electrical disturbances power sources, mobile phones etc.
Ensure legs are apart and arms are not in contact with the trunk. How do I check the measurement accuracy following a test? With our dual and multi frequency units, it is recommended that the raw impedance data be viewed following the measurement. Each value must be lower than the previous impedance value.
If one of the values seems incorrect or higher than the previous value, then the test may need to be re-taken.
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