Ectomorph thumb and middle finger overlapping with ease. All measurements should be taken at their widest points and should be recorded in inches. Grip your opposite wrist using the thumb and middle finger. Again this measurement is not required for men. Difficulty in gaining body fat and muscle. While the measuring tape method may be the most accurate way to determine body frame size you can also use your thumb and index finger to estimate your frame size.
Insert your measurements into this formula. The body fat index is not an indicator of fitness level since the calculation is made with no regard to height or weight. Measuring your wrist with your fingers. If youre right handed use your right hand to grab your left wrist. John mccallums realistic measurement ideals for hard gainers. A hips b waist c forearm circumference and dwrist.
Use a tape measure to determine your waist wrist hip and forearm circumference. Wrap a measuring tape around your wrist in the fullest part. Step 7 divide your bodyweight by the. Put your tape around the thickest part of your forearm close to your elbow. Fat b 05a 3c d for men 30 years old or younger. The measurements needed to compute body fat percentage using the covert bailey method for a male are.
In the book brawn stuart mcrobert published the old john mccallum formula for challenging yet realistic measurements for hard gainers. 86010 waist neck 100 70041 x height 100 3676. His formula is based on wrist measurement. W wrist circumference measured on the hand side of the styloid process the bump on your wrist bf body fat percentage at which you want to predict your max lean body mass casey also came up with formulas to predict maximum muscular measurements. Then input your gender and measurements below to receive a body fat index based on average values. Wrap your thumb and forefinger around your wrist in the area you normally wear a watch.
The result determines your percentage of body fat. The forearm circumferenceis only needed to calculate the body fat of women.