Obstetrics is the field of study concentrated on pregnancy, childbirth, and the postpartum period. As a medical specialty, obstetrics is combined with gynaecology under the discipline known as obstetrics and gynaecology which is a surgical field.
Beep definition, a short, relatively high-pitched tone produced by a horn, electronic device, or the like as a signal, summons, or warning. See more. Dictionary.com
Posted. The original 'beep test' utilised a 400m track with cones marked every 20m. The new version is easier to run with athletes running between markers spaced 20m. The newer version places a greater reliance on deceleration/acceleration and may tend to favour shorter, lighter runners with less inertia to overcome.