Jumpers

Question 1

Describe the movement of the neck and the center of gravity during the stride before the fence

Answer 1

Stretches downward and forward

Question 2

Know when the flight of the jump (trajectory) is determined

Answer 2

At takeoff

Question 3

Describe the flexion/extension of the hindlimbs during their last ground contact before the jump and the effect on energy

Answer 3

As hindfeet impact the gournd the legs are extended and then the hocks, stifles, and hips flex storing energy

Question 4

Know the effect of poor jumping technique on the effort needed to clear a jump

Answer 4

Poor jumping technique leads to higher forces at take off and landing.

0.80 m with poor form is equivalent to 1.3 m with good form

Question 5

Know the significance of consistently jumping to one side, say to the left. It may indicate problems in which areas

Answer 5

Thoracolumbar, SI or upper hindlimb

Question 6

Know which muscles prevent the horse’s trunk from crashing to the ground at landing

Answer 6

Serratus ventralis and pectorals

Question 7

Know which front limb (leading limb or trailing limb) may have a problem when the horse consistently lands with the same front limb leading and why

Answer 7

Leading limb, trailing limb takes on more concussion on landing

Question 8

Know where the center of gravity is at landing

Answer 8

Shifted very far forward in front of the front feet and in front of the base of support

Question 9

Know why the hindlimbs flex immediately on landing (2 reasons)

Answer 9

To absorb impact and store energy for the next stride

Question 10

Know what it may indicate when a horse consistently jumps from one lead

Answer 10

Always jumps from the left lead may have problem with the left front or left hind

Question 11

When does a horse get its jumping style

Answer 11

At a young age – 4 months