Javalin

Question 1

What is the length of the runway?

Answer 1

30 - 36.5m

4m wide

Question 2

What dtermines a foul in javelin?

Answer 2

• cannot step out of the arc at the end of the runway

- javelin must land in sector, point down

Question 3

What are the weight classes for javelin?

Answer 3

girls - 500g
women - 600g
boys - 700g
juniour men - 800g 
senior men - 800g

Question 4

what are the 3 grips and describe them

Answer 4

American - thumb and forefinger in contact with grip
Finnish grip - thumb and middle finger are in contact with edge grip and forefinger running up javelin shaft
Fork grip - forefinger and middle finger are in contact with the grip

Question 5

Safety considerations

Answer 5

• lethal sport
• clear throwing area
• throw and retrieve cues

Question 6

4 biomechanical variables that influence performance

Answer 6

release height
release angle
release speed
aerodynamics

Question 7

what should the release angle be?

Answer 7

30-38 degrees

Question 8

what is the most important variable of the throw?

Answer 8

Release speed

Question 9

what 2 forces does wind impart on the javelin?

Answer 9

Lift and Drag

Question 10

What is the goal of the throwing technique?

Answer 10

to synchronize body movements to
maximize the force applied (over the longest path possible) to the
javelin in the direction of the throw.

Question 11

what are the 2 main phases in the javelin throw?

Answer 11

The Approach

The Throw

Question 12

3 sub phases of the approach

Answer 12

1) cyclic phase
2) withdrawl
3) acyclic phase

Question 13

describe the Cyclic Phase

Answer 13

• 12 strides
• carry javelin above head
• rhytmical

Question 14

Describe the withdrawl

Answer 14

throwing arm is extended backwards and the

athlete turns the chest so as to face the throwing arm side

Question 15

Describe the Acyclic phase

Answer 15

• switch to cross steps 3-9 depending on athlete

Question 16

2 sub phases of the Throw

Answer 16

Penultimate step and Block Step

Question 17

describe the penultimate step

Answer 17

• penultimate leg lands softly and stays
  bent through the entirety of the throw.
• The right hips are rotated to face the target (“open”) while the
  shoulders are kept facing the side (“closed”) nearly until the
  block touches down.

Question 18

Describe the block step

Answer 18

• weight is shifted to the left
  side and the block leg makes contact with the ground – with
  a stiff knee.
• Once the shoulder axis has rotated to the front, the left side of
  the upper body will block

Question 19

Error dectition in approach

Answer 19

– Good running mechanics shown?
» Teach effective mechanics as per sprinting events
– Smooth withdrawal of javelin?
» Practicing smooth withdrawal
– Effective cross steps (maintaining speed)?
» Practice cross steps to maintain velocity

Question 20

Error detection in the Throw

Answer 20

– Penultimate step:
» Soft contact, stays bent
» Hips rotate to ‘open’ position
» Shoulders stay in ‘closed’ position
– Block Step:
» Stiff knee
» Keeping arm back for as long as possible
» Hand must come over top of arm (cannot be a sidearm
throw)