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Reactive Strength Quadrant Part 2: Programming Data to Dynamics
by Matt McInnes Watson November 4, 2025

Plyometrics should not live in a world of guesswork. We have the ability to measure, categorize, and progressively develop the reactive qualities t...

Posted in assessment, CMJ, plyomat, plyometrics, quadrant, reactive strength quadrant, RSI

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Relationship Between Jump Metrics and Speed
by Richard Burnett October 28, 2025

Which Test Has the Strongest Relationship with Sprint Ability? By Richard Burnett, MS, SCCC, CSCS, CAFS At Triple F Elite Sports Training, we’ve sp...

Posted in assessment, CMJ, force plates, jump, plyomat, RSI, sprinting

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Reactive Strength Quadrant: Part One
by Richard Burnett October 7, 2025

While RSI has long been a staple in field-based assessments, visualizing its components in a two-dimensional quadrant model—the Reactive Strength Quadrant (RSQ)—offers a more nuanced interpretation.

Posted in quadrant, reactive strength quadrant, RSI

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Stiffness vs. Compliance
by Richard Burnett September 29, 2025

💥 Stiffness vs Compliance: Understanding the Muscle-Tendon Complex in Plyometric Training By Richard Burnett, MS, SCCC, CSCS, APCC, CAFS Intro: ...

Posted in assessment, athletic, depth jump, jump, Performance, plyomat, plyometrics, RSI, strength and conditioning

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Using Reactive Strength Index (RSI) in a Team Setting
by Richard Burnett September 23, 2023

Using Reactive Strength Index (RSI) in a Team Setting Devan McConnell High Performance Director Arizona Coyotes What is RSI? RSI is shorthand f...

Posted in assessment, athletic, jump, Performance, plyomat, plyometrics, RSI, strength and conditioning, Team

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Reactive Strength Quadrant Part 2: Programming Data to Dynamics

Relationship Between Jump Metrics and Speed

Reactive Strength Quadrant: Part One

Stiffness vs. Compliance

Using Reactive Strength Index (RSI) in a Team Setting