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ARTICLES
Technique
Jump mechanics: arm swing, countermovement, approach and single-leg work.
4 guides
TECHNIQUE
Arm Swing in the Vertical Jump: How Much Does It Matter?
The arm swing contributes 10–15% of jump height. Here is how it works mechanically and how to time it correctly.
6 min read
TECHNIQUE
How Deep Should the Countermovement Be in a CMJ?
Deeper is not better. Research points to a natural, fluid dip around 90–100° of knee flexion — and speed matters more than depth.
5 min read
TECHNIQUE
Approach Jump Technique: The Three Cues That Matter
Penultimate step, block step and takeoff — the three phases that turn horizontal speed into vertical height, with the common approach-jump mistakes that kill distance and how to fix them.
6 min read
TECHNIQUE
Single-Leg vs Double-Leg Jumps: Which Should You Train?
Two-leg jumps build symmetric force; one-leg jumps build horizontal-to-vertical conversion. Most athletes need both.
6 min read