Average body fat percentage was 2855 on the normal setting and 2648 on the athletic setting table 4. There seems to be a lot of mixed answers to how hydration affects the body fat readings.
Body Fat Body Composition Testing Dr Fitness Personal
Effect of hydration on body fat measurement. It should be noted that one subjects body fat percentage increased by a small amount. In a study by published in annals of family medicine the researchers found out that people who are obese and have a higher body mass index or bmi although bmi has its own limitations are more likely to be inadequately. Twelve active adult 18 29 years males exercised at 70 vo2max on a cycle ergometer in a thermal environment 30 c to induce a 25 reduction in body mass. An overestimation of body fat. Now that youre aware of the importance of being well hydrated to gain lean body mass youre probably curious if your hydration status can also impact fat loss efforts. Body fat measurements of the subjects in the bod pod control group ranged from 173 to 46 table 7 and the average was 301 table 5.
Your body fat is pretty water dense so dense in fact that body fat is comprised of about 10 water. For example on the tanita website tanita is a brand of body fat scales it says under the faqs section that dehydration causes the body fat reading to come out higher than it actually is. This is especially significant after completing a vigorous workout routine. I have noticed that if i have a few beers the next morning my body fat reading is higher than i suspect it should be. When is the most accurate time of day to check your body fat. That means that your changing level of hydration can have a significant effect on the body fat reading that you get.
Its been shown that for every five point increase in bmi your risk of death increases 31 and while bmi cant be used as a sole indicator for disease risk it does help. Dehydration is a recognized factor affecting bia measurements as it causes an increase in the bodys electrical resistance so has been measured to cause a 5 kg underestimation of fat free mass ie. I have been told the best time is the first thing in the morning before any food intake. Body mass index or bmi is the customary method used to measure obesity. Body fat measurements are lower when measurements are taken shortly after consumption of a meal causing a variation. How does hydration affect the output on a body fat scale.
Its a calculation of your weight to height ratio and can provide insight into risk for diseases. So what is the right answer. The purpose of this study was to determine the effect of exercise and thermal dehydration and subsequent glycogen supercompensation on dxa based measurement of body composition.