Editing Plyometrics (section)

{{Short description|Maximum-intensity explosive exercises}}
{{more footnotes needed|date=January 2014}}

[[File:USMC-05301.jpg|thumb|300px|A [[US Marine]] performs plyometric jumps in [[Camp Foster]], Okinawa]]

'''Plyometrics''', also known as '''jump training''' or '''plyos''', are exercises in which [[muscle]]s exert maximum force in short intervals of time, with the goal of increasing power (speed-strength). This training focuses on learning to move from a muscle [[Extension (kinesiology)|extension]] to a [[Muscle contraction|contraction]] in a rapid or "explosive" manner, such as in specialized repeated jumping.<ref>{{cite book|last=Chu|first=Donald|title=Jumping into plyometrics|url=https://archive.org/details/jumpingintoplyom0002chud|url-access=registration|year=1998|publisher=Human Kinetics|location=Champaign, IL|isbn=978-0880118460|pages=[https://archive.org/details/jumpingintoplyom0002chud/page/1 1–4]|edition=2nd}}</ref> Plyometrics are primarily used by [[Sportsperson|athletes]], especially [[martial arts|martial artists]], [[Sprint (running)|sprinters]] and [[high jump]]ers,<ref>{{cite web|url=http://athleteculture.com/training/an-athletes-guide-to-jumping-higher-vertical-jump-secrets-uncovered/|title=An Athlete's Guide to Jumping Higher: Vertical Jump Secrets Uncovered!|last=Starks|first=Joe|date=25 April 2013|publisher=Athlete Culture|access-date=30 April 2013|archive-url=https://web.archive.org/web/20130511071908/http://athleteculture.com/training/an-athletes-guide-to-jumping-higher-vertical-jump-secrets-uncovered/|archive-date=11 May 2013|url-status=dead}}</ref> to improve performance,<ref name="Yessis">{{cite book |author= Michael Yessis |title=Explosive Plyometrics |publisher=Ultimate Athlete Concepts|year=2009 |isbn=978-098171806-4}}</ref> and are used in the fitness field to a much lesser degree.<ref>{{cite web|url=https://doctoryessis.com/2013/01/02/why-is-plyometrics-so-misunderstood-and-misapplied/|title=Why is plyometrics so misunderstood and misapplied?|last=Yessis|first=Michael|date=2 January 2013|publisher=doctoryessis.com|access-date=3 April 2020}}</ref>