Girths are circumference measures at standard anatomical sites around the body. Keep the feet together relax your muscles and stand up straight. Sit at a table and rest your arm on the tabletop. Hold the end of a soft measuring tape over the highest point of your biceps and around it so both ends meet. One of the most well known measurements for the human body is called body mass index bmi. All you need is the height and weight of a person to find their bmi.
You should measure all your body parts relaxedquote if someone asked you how big your dick was would you measure that relaxed. Ensure that muscles are not flexed particularly the biceps bodybuilders have a natural tendency to do this as this will produce an inconsistent result given there is usually a wide variation between individual flexed body parts. See the list of girth measurement locations. To measure the circumference of the arm as a measure of the underlying musculature and adipose tissue. Measure body parts in their relaxed state. To measure your flexed biceps.
Curl your forearm up toward your shoulder as if doing a bicep curl flexing as hard as you can. The flexed arm girth measurement is a measure of the circumference of the upper arm when the biceps is flexed. In other words it doesnt take into account how much muscle or fat you have but just your weight relative to your height. Consistency is essential measure under the same conditions and using the same equipment each time. Measure in a relaxed state. Generally take measurements in an unflexed state and before your workout not after.