Plyometrics are defined as “a type of exercise training designed to produce fast, powerful movements, and improve and enhance the functions of the nervous system, typically for the purpose of improving performance in sports. Plyometric movements, where a muscle is loaded and then contracted in rapid sequence, use the elasticity, strength, and innervation of muscle and surrounding tissues to jump higher, throw farther, run faster, or hit harder, depending on the desired training goal. Plyometrics are used to increase the speed or force of muscular contractions, providing explosiveness for a variety of sport-specific activities.”

These are very sport-specific movements, especially with football, rugby, soccer, baseball, basketball, tennis, and sports involving running economy (like track, triathlons, and marathons). As a person gets more efficient at contracting their muscles in-sync with the elastic movement of it’s connective tissue, their athleticism increases.

One such plyometric exercise are long-jumps, which are typically performed on level ground, but can be performed on a staircase, creating a more challenging workout.

These jumps are done with minimal contact time, maximizing the use of the elasticity of the joints. The further the jump the more contact time is typically required.

The athlete in the above videos regularly competes in marathons, triathlons, and even Iron-Mans. He is doing these plyometrics in attempt to increase running economy and overall lower-body power to further his athleticism.