Effect Of Hydration On Body Fat Measurement
Average body fat percentage was 2855 on the normal setting and 2648 on the athletic setting table 4.
Effect of hydration on body fat measurement. 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. It should be noted that one subjects body fat percentage increased by a small amount. An overestimation of body fat. 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.
Body fat measurements are lower when measurements are taken shortly after consumption of a meal causing a variation. 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. That means that your changing level of hydration can have a significant effect on the body fat reading that you get. So what is the right answer.
When is the most accurate time of day to check your body fat. 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. There seems to be a lot of mixed answers to how hydration affects the body fat readings. 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.
How does hydration affect the output on a body fat scale. I have been told the best time is the first thing in the morning before any food intake. 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. Body mass index or bmi is the customary method used to measure obesity.
Your body fat is pretty water dense so dense in fact that body fat is comprised of about 10 water. 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. 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.