Jumping 1
DAILY DOUBLE
During this type of dive the diver somersaults forward while facing the board, with no approach (standing).
(5 seconds to answer)
Movement that causes the COM to project upward and the feet to leave the ground
What is jumping?
This type of jump has no initial downward movement.
What is a squat jump?
During this type of dive the diver is facing the water, approaches with several steps and somersaults in the forward direction.
What is forward?
The hang, sail, and hitch-kick are all styles of this type of jump.
What is the long jump?
Landing ends when COM stops moving in this direction.
What is downward?
This subphase of landing occurs during the first 50-80ms after ground contact.
What is passive?
This biaxial muscle crosses the hip and knee and contributes to hip flexion and knee extension.
What is the Rectus Femoris?
During this subphase of landing eccentric muscle activation resists lower extremity flexion.
What is active?
Long jumpers experience this during the flight phase because vGRF does not pass directly through their COM at take off.
What is angular momentum?
Due to the mechanical energy transfer, moment of inertia about the hip joint is reduced and this is increased.
What is angular velocity? (about the hip joint)
The most critical phase of a spring board dive.
What is the takeoff phase?
During this type of springboard dive the diver approaches with several steps, is facing the water and somersaults backwards.
What is a reverse?
During take off, the rectus femoris acts as this, when it extends both the hip and knee.
What is a/are "stiff cable(s)"?
The most important contributor to distance jumped when performing a long jump
What is "displacement of COM"?