Chapter 9: Speed, agility, and quickness Flashcards
speed
the velocity at thich a movement is executed
rate of performance of an activity
ballistic movement
created by a rapid lenghtening of a msucle immediately followed by a shortneing, creating an elastic effect of energy realease
stretch-shortening cycle
ability to store and realease energy
action is often reffered to as the stretch reflex
overspeed drills
downhill running 5-6% grade
band assisted sprinting
resisted speed drills
uphill running sled pushes band resisted sprinting partner resisted sprinting parachute sprinting
Linear speed
ability to move the body in one intended direction afap
stride rate
amount of time needed to complete a stride cycle and is limited by stride length
optimal stride length
for max linear speed its 2.3-2.5 times the athletes leg
drive phase
the point in the stride in which the foot is first in contact with the ground
recovery phase
the point in the stride in which the leg swings from the hip while the foot clears the ground
support phase
the point in the stride in which the runners weight is carried by the entire foot
frontside mechanics
dorsiflexion, knee and hip flexion
backside mechanics
plantar flexion, knee and hip extension
agility
ability to change direction or orientation of the body based on rapid processing of internal or external info quickly and accurately w/o significant loss of speed
multidirectional speed
ability to create speed in any direction or body orientation( forward, backward, lateral, diagonal, etc)