Two approaches have emerged when it comes to quantifying high-intensity fitness. The first involves quantifying mechanical work or movement speed produced over a defined time period, usually less than 1 minute. Common examples of tests for quantifying anaerobic power include a vertical jump height, standing long jump distance, 10-metre sprint run time and maximal power during a 6-second cycling sprint. For those who want to quantify anaerobic capacity, the maximal effort needs to be longer, and the unit of measure changes from power (W) to work (kJ).