Counter Movement Jump

Muscles Involved

• Quadriceps
• Adductors
• Gluteus Maximus
• Calves

Athlete Positioning

• Jump stance (slightly closer than squat stance)
• Knee bend is based on preference
• Arms will raise above head, and will forcefully throw arms to ground while simultaneously lowering body into jump position, followed by a maximal effort jump while throwing arms back up to ceiling 

Coach Positioning 

• Beside athlete to ensure proper jump and landing form and maximal effort is produced

Set Up

• gFlight system consist of two infrared devices that must face each other in straight line to collect data
• Ensure enough space is between the two devices for athlete to safely jump and land

Prepare to Test

• Select device, select athlete (if athlete is not entered do it now), select test.

To Test 

• Athlete enters between the two gFlight devices
• Select Start when athlete is ready to perform test
• Athlete jumps with maximal effort
• Select Stop when done recording 
• Select Save to record test