             Plyometric exercise: more length, loaded or explosive eccentric muscle actions, no reversible muscle actions are used Shock training + exercises that consist of plyometric actions Lengthening or prestretching of skeletal muscles under loading that allows a more forceful CON muscle action Use the stretch shortening cycle o Countermovement initiates stretch reflex o ECC muscle action, followed brief ISOM phase and CON o Amortization phase o Coupling time o Increase in energy that can be stored and used o Increase in muscle power and rate of force development Rely on loading and rate of lengthening during the ECC phase Include depth jumps, walking, jogging, hopping Continuum of intensities: submax vs. max Enhance explosive power performance Plyometrics increases athletic performance, jumping height and power, sprinting ability, agility, peak isokinetic strength, muscle strength and hypertrophy Plyometric program variables include exercise selection and order, intensity, volume, frequency, and rest intervals Plyometric critical components include planned progressive overload, specificity, and variation Factors to consider: age/training status of athlete, equipment availability, training surface, recovery in between workouts, nutrition, integration of plyometrics with other training modalities Other factors are the quality of training, sport specific exercise selection, gradual progression based on training level of athlete, proper technique, sufÏcient space