ForceDecks Test: Hop Test Protocol

ForceDecks App Protocol

Starting Position
  • Normal standing posture
  • Hands on hips
  • Chest up and looking forward
Protocol
  1. Zero plates – Ensure nothing is touching plates and click "Zero Platforms".
  2. Assume starting position – Ask individual to assume starting position.
  3. Weigh individual – Click “Weigh Athlete”. The individual must remain completely still, and the colour display must register green before accepting body weight.
  4. Stabilise individual – Instruct the individual to remain completely still, in the standing position for 2-3 seconds before the first jump.
  5. Start Recording – Click ”Start Recording”.
  6. Perform jump - Instruct the individual to:
    1. Keep chest up and looking forward;
    2. Bend down; then
    3. Jump up; then
    4. Land stiff-legged on only the toes; then
    5. Quickly jump off the toes, for the desired number of reps, in rapid succession (Safely keeping the knees as straight as possible).
  7. Stop recording – Click "Stop Recording".
  8. Review – Review that reps and test type have been detected correctly.  You can manually correct the test type and/or manually mark trial ranges, if required.
  9. Analyse Click "Analyse and Save" - to move directly to next individual; or "Click Analyse" – to review results.
Reps 1 - 100 reps 
Default Instant Results
Note:  ForceDecks auto-detects the top 5 hops with the highest RSI. The number of hops analysed can be manually inputted in the recording screen.
Performance
  • Mean Contact Time [ms]
  • Mean Flight Time [ms]
  • Mean RSI (Flight/Contact Time)
  • Mean Active Stiffness [N/m]
Asymmetry
  • Mean Landing RFD (asymmetry) [% L,R]
  • Mean Impulse (Asymmetry) [% L,R]
  • Mean RSI (Flight/Contact Time)
  • Mean Active Stiffness (Asymmetry) [% L,R]

Related Article: ForceDecks Test: Hop Test Overview