The technique athletes use of jumping onto boxes and over cones to increase power is known as:

• A. Calisthenics
• B. Jumpometrics
• C. Plyometrics
• D. Optometrics

Answer: (C)

Plyometrics are explosive training drills that develop power by using a rapid stretch of the muscle followed by a forceful shortening, known as the stretch-shortening cycle. Jumping onto boxes and hopping over cones are classic plyometric movements because they require the muscles to generate a lot of force in a very short time, improving both vertical jump height and overall explosive speed. This type of training helps athletes accelerate, change direction more quickly, and produce powerful movements in sports.

Other terms don’t fit this concept. Calisthenics emphasize bodyweight strength and endurance rather than explosive power, jumpometrics isn’t a standard term in sports science, and optometrics relates to vision and visual performance, not power training. For safety, plyometrics should follow a solid strength base and proper technique to protect joints during takeoff and landing.