Welcome to the Performance Insider Newsletter
Welcome to Performance Insider Performance Insider is a twice-weekly newsletter for coaches, physical therapists, athletic trainers, and performance professionals who
Ramsey Nijem
Latest
Training
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Rethinking Drop Jump Height for Performance and Safety
Drop jumps are everywhere in performance programs. And the current trend seems to be "higher drops is better."
Training
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Sleep More, Jump Higher: What 4,000 Data Points Reveals
Sleep is always talked about as “recovery,” but far less often as a performance input. Most of the sleep–performance
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Sports Injuries: Active vs Latent Errors
Most sports injuries are explained by the moment they happen. The cut, the landing, the collision, the replayed frame where
NBA Bodyweight Calculator
This tool gives you a quick height-based reference for what bodyweight tends to look like at the NBA level. It’
The Dynamic Rebound Index (DRI) Calculator
A New Measure of Reactivity The Dynamic Rebound Index (DRI) was created to address a key limitation of the Reactive
Training
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Concentric Strength Drives Lower-Body Power
Eccentric strength is often credited for braking, force "absorption," and stretch-shortening cycle benefits, while concentric strength is viewed
Injuries in Sport: Mechanisms Tell Us How, Not Why
One of the biggest mistakes we make in sports medicine and performance is confusing mechanism with cause. You see it
Training
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Height vs Load in Supramaximal Landing Training
Deceleration is a limiting factor in high-level sport. Stopping fast, changing direction, and "absorbing" force safely all depend
Training
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"Bounce" Squats Increase Force and Velocity
The back squat is one of the most common strength exercises for building force, power, and resilience in athletes. Yet
Training
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Understanding Stiffness: Movement vs Tendon
Two Different Meanings of Stiffness “Stiffness” is one of the most misunderstood words in performance training. Coaches throw it around
Testing
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Dynamic Rebound Index: A New Mechanical Measure of SSC Performance
The stretch–shortening cycle (SSC) underpins nearly every explosive action in sport. Sprinting, cutting, jumping, rebounding, and rapid deceleration all