View Video for Demonstration – Test takes less than 1 minute Science, Validation and References
The initial studies were performed at the University of Southern California, using the hydrostatic under water weighing tank, which is considered the gold standard for accuracy in measuring body composition analysis.
Published Data “A Simple And Accurate Method For the Clinical Diagnosis Of Obesity” R.N. Girandola, Ed.D., S. A. Contarsy, M.A. R.A. Wiswell, Ph.D., and Raul Artal, M.D. Department of Exercise Science, University of Southern California, Los Angeles, CA 90089-0652 Department of Obstetrics and Gynecology SUNY Health Science Center, Syracuse Medical Center Syracuse, NY 13210.
Hundreds of patients were dunked and mathematical algorithms were developed, correlating the electrical impedance to the hydrostatic tank and the data was published in medical journals such as the American Journal of Clinical Nutrition.
How It Works
Electrodes are placed on the patient’s right hand and foot and a small current of electricity is sent through the body and the impedance is measured. Muscle is 70-75% water so electricity flows quickly with less impedance and fat is 3-13% water so electricity flows slowly.
View Video for Demonstration – Test takes less than 1 minute
The results suggest that the 4 electrode upper and lower impedance testing has a plus or minus 2% accuracy as compared to the hydrostatic tank. Retest accuracy, retesting on the same patient is approximately plus or minus ½ % accuracy.
So for measuring change within the same patient it becomes an extremely useful and reliable tool
For example skin fold measurements:
- Have a 6-8% inaccuracy with good technique – compared to hydrostatic tank
- requires 6-8 skin fold locations for accuracy
- patient has to partially disrobe
- requires good investigator technique
- not as accurate for retesting on same patient
- takes approximately 10 minutes to perform evaluation and calculations.
The limitations with body fat scales or hand held devices are that these devices only measure upper or lower impedance, not total body impedance – which is a problem with apple or pear shaped body types.
Since some individuals place their weight in their abdominal area and others in their gluteal area measuring only upper or lower body impedance has its limitations with accuracy.
Accuracy & reliability is the primary reason we use a 4-electrode upper & lower electrical impedance analyzer.
Please remember that BMI is only a height and weight relationship and that using lean muscle weight and the patient’s metabolic rate and activity level is a much better way to give the correct amount of carbohydrates, proteins and fat to manage their blood sugars, energy level, hunger, appetite, cravings, or fatigue throughout the day.
The Lifestyle Nutrition Metabolic Analyzer will correlate the correct amount of food based on your metabolic rate, resting energy expenditure, activities of daily living, calories burned by anaerobic and aerobic exercises, based on the patients lean body weight
The key to our nutritional program is to give the correct amount of carbohydrates, proteins and fats which is a sliding scale meal plan which is based on the individuals height, weight, age, sex, lean muscle mass and calories burned by aerobic and anaerobic exercises.
The Lifestyle Nutrition Program can be considered an anti-aging, disease prevention, blood sugar management program that promotes muscle gain and fat loss while controlling appetite and decreasing blood sugar spikes and cravings. By teaching your patient to manage their blood sugar levels adequately the Lifestyle Nutrition Program is interpreted by your patients as a positive uplifting life experience.