Depth Jump

Depth Jump Reactive Strength Analysis

AI-powered depth jump analysis for volleyball athletes. Measure reactive strength index, ground contact time, rebound jump height, landing mechanics, knee tracking, and bilateral symmetry from a simple box drop jump.

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What This Analysis Measures

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Reactive Strength Index

RSI-modified score from drop height, rebound jump height, and ground contact time. The gold standard for explosive power assessment.

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Ground Contact Time

How quickly you transition from landing to takeoff. Shorter contact time means better stretch-shortening cycle efficiency.

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Landing Mechanics

Knee flexion angle, knee tracking, and bilateral symmetry at landing. Identifies ACL risk patterns in controlled conditions.

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Post-Landing Stability

Body control and stabilization after the rebound jump. Asymmetric landing patterns indicate strength imbalances worth correcting.

Frequently Asked Questions

What does a depth jump analysis measure?
The analysis measures drop height, rebound jump height, ground contact time, RSI-modified reactive strength, landing knee flexion, bilateral knee symmetry, knee tracking, and post-landing stabilization.
How should I perform a depth jump for analysis?
Step from a stable box, land quietly on both feet, absorb the landing with the hips and knees, and immediately rebound vertically. Use a box height that lets you keep control and land without pain.
What camera angles are needed?
Record one full-body front view for knee tracking and landing symmetry and one full-body side view for drop height, ground contact, jump height, and reactive timing.
Is depth jump analysis a medical diagnosis?
No. The results are movement estimates for training and coaching conversations, not a medical diagnosis or a replacement for a qualified clinician or force-plate assessment.

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