Height, body mass, BMI, & waist circumference. Height without shoes will be measured to the nearest 0.1 centimeter using a stadiometer and body mass will be measured to the nearest 0.1 kilogram using a calibrated and certified balance beam scale. Height and body mass will be used to calculate BMI. Waist circumference will be measured to the nearest 0.1 cm with a Gulick-II spring-retractable steel tape.