Difficulty in gaining body fat and muscle. A hips b waist c forearm circumference and dwrist. Grip your opposite wrist using the thumb and middle finger. In the book brawn stuart mcrobert published the old john mccallum formula for challenging yet realistic measurements for hard gainers. Again this measurement is not required for men. His formula is based on wrist measurement.
Insert your measurements into this formula. Step 7 divide your bodyweight by the. Ectomorph thumb and middle finger overlapping with ease. The forearm circumferenceis only needed to calculate the body fat of women. Then input your gender and measurements below to receive a body fat index based on average values. The result determines your percentage of body fat.
The body fat index is not an indicator of fitness level since the calculation is made with no regard to height or weight. John mccallums realistic measurement ideals for hard gainers. 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. All measurements should be taken at their widest points and should be recorded in inches. Wrap a measuring tape around your wrist in the fullest part. 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. 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. Measuring your wrist with your fingers. The measurements needed to compute body fat percentage using the covert bailey method for a male are. If youre right handed use your right hand to grab your left wrist. Wrap your thumb and forefinger around your wrist in the area you normally wear a watch.
Use a tape measure to determine your waist wrist hip and forearm circumference. 86010 waist neck 100 70041 x height 100 3676.