Countermovement Rebound Test Setup Guide

Countermovement Rebound Countermovement + Arm Swing

• The CMJ RB combines a slow stretch shortening cycle movement with a fast stretch shortening cycle movement - all in one.  Think of it as a combination of the CMJ and DJ.  The athlete performs a normal CMJ, but on landing rebounds for a second jump, and then sticks the landing.  The height of the initial CMJ dictates the intensity of the subsequent rebound according to the athlete's jumping ability.

• In the app, select “Countermovement Rebound” from the testing menu
  • Have the selected athlete stand on the plates with their hands firmly attached to their hips. 
  • If done with arm swing: have the athlete start with their arms fully extended overhead

• Press the play button to start test.
• On the beep and flash cue the athlete to jump as high as possible, twice, and as quickly as possible between maximal jumps, landing back on the plates.
  
  • After completion of each test, press save.
  • Repeat for desired amount of tests.
• This test can also be done with an Arm Swing
  • Follow the same protocol, EXCEPT:
    • Have the selected athlete stand on the plates with their arms fully extended overhead
    • On the beep and flash cue the athlete to throw their arms down on the descent and jump as high as possible landing back on the plates.
    • Tag it " Arm Swing" 

• Instruct the athlete to go directly into the second jump as soon as they land the first without a pause, two jumps as fast as they can.

• Athlete must land on plates after rebound jump for results to process. 
• It is important to standardize testing protocols in order to accurately compare results, including:
  
  • Warmup
  • Instructions/intent

• Countermovement Rebound (Hands on Hips)

• Countermovement Rebound + Arm Swing

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