Vertical jump measurements are used primarily in athletic circles to assess muscular strength and anaerobic power.  A standing vertical jump is the act of raising one's center of mass higher in the vertical plane solely with the use of one's own muscles; it is a measure of how high an athlete can elevate off the ground (jump) from a standstill with no steps being involved at all. To measure an athlete’s power output, Athlometrix uses the most accurate and efficient vertical jump device, comprising a plurality of vertically arranged measuring elements each pivotally mounted (based on United States Patents).