Standing triple jump Standing triple jump Standing triple jump is an athletics event based on the conventional triple jump with three jumping phases, but without an approach run-up. It is one of three standing variants of track and field jumping events, along with the standing high jump and standing long jump. While it is no longer an official competitive event, it is still used as a training exercise. The first phase is a hop from a stand still, which requires the athlete to take-off from a two-footed stand, split in mid air, and land on the preferred foot. The next phase is a
Committed step Committed step In enzymology, the committed step (also known as the "first" committed step) is an effectively irreversible enzymatic reaction that occurs at a branch point during the biosynthesis of some molecules. As the name implies, after this step, the molecules are "committed" to the pathway and will ultimately end up in the pathway's final product. The first committed step should not be confused with the rate-determining step, which is the slowest step in a reaction or pathway. However, it is sometimes the case that the first committed step is in fact the rate-determining step as well. Metabolic pathways require