athletic performance
How to Design an Off-Season Power Program for Athletes
Off-season volume alone will not build power. Here is the baseline test, strength-foundation phase, strength-power bridge, and power-expression phase.
Reactive Strength Index (RSI) Explained: What It Is and Why It Matters
RSI is jump height divided by ground contact time, but a good score varies by sport and level. Here is how to test it correctly and pick drills that help.
Best Exercises for Explosive Power: Top 12
Twelve exercises ranked by force-velocity carryover to sport, each with loading parameters and its place in a 10-week explosive power block.
How to Improve Rate of Force Development (RFD)
Peak strength alone won't make you explosive. Follow a 3-phase, 8-week RFD plan built on jump squats, hang cleans, and isometric holds, tracked via RSI.
How to Jump Higher: 12 Science-Backed Training Methods
From plyometrics to VBT to progressive overload, these 12 research-backed methods explain what actually raises your vertical and what's just noise.
Countermovement Jump (CMJ): Technique, Measurement & Norms
The countermovement jump (CMJ) test — proper technique, measurement methods, normative data, and how to improve your CMJ score.