The Importance and Methods of Taking Accurate Body Circumference Measurements

Factors to Consider in Circumference Measurements

– The measuring tape to be measured should be flexible and bendable, not elastic.

– Fat tissue should not be compressed when measuring.

– If a Gulick spring stem is used in measurements, it should be extended to the same mark in each attempt.

– Instead of taking consecutive measurement, measure the evaluated areas and then measure in the same order.

– If the difference between two measurements is more than 5 mm, use the average of the two measurements.

– Give your skin time to regain normal texture between measurements.

Body Parts and Measurement Rules

Head: The maximum circumference passing from the point above the child’s eyebrows to the supraorbital line and the highest prominence at the back of the head (occipital prominence) is measured with a tape measure.

Neck: Measured horizontally from the lower end of the Adam’s apple, whether sitting or standing

Shoulder: The person stands with her/his arms freely at their sides. Use the tape measure to measure from the widest part of the deltoid muscle under the acromion.

Chest: The person stands with feet shoulder-width apart, arms slightly abducted, and the tape measure is placed from the subcostal region, the Xiphoid process, and just below the axilla.

Waist: While the person is standing, feet together, arms at the sides and abdomen relaxed, a horizontal measurement is taken from the narrowest part of the body. That is between the belly button and the xiphoid process.Abdomen: The person is asked to stand upright and relaxed. It is measured horizontally, full circle, at the level of the belly button.

Arm: The person is asked to stand upright and relaxed. After releasing the hands to look at the thigh, measurements are taken horizontally from the midpoint between the shoulder and elbow.

Forearm: A measurement is taken perpendicular to the forearm from the maximal part when the person is in the anatomical position.

Wrist: The right arm is slightly bent at the elbow. Palms point opposite. Measurements are taken from the styloid processes of the radius and ulna bones at right angles to the forearm.

Hip: The person is asked to stand upright and with his feet together. A horizontal measurement is taken from the part where the circumference of the hips is maximal.

Calf: The person is asked to stand upright, feet 20 cm apart and a horizontal measurement is taken from the maximum width between the knee and ankle.

Ankle: The person sits or reaching out. A horizontal measurement is taken from the top of the malleoli with the foot bare.

How Do We Calculate Body Fat Percentage Using Circumference Measurements?

Formula for converting body density to fat percentage:

Male %VYO= 0.567 x Waist circumference (cm) + 0.101 x age (years) – 31.8

Woman %VYO= 0.439 x Waist circumference (cm) + 0.221 x age (years) – 9.4

You can't know what you don't measure, and you can't improve what you don't know.