Measure what matters.
Detailed guides for measuring and improving exercise performance with data-driven insights.
Ankle Dorsiflexion Test: How to Measure and Improve Ankle Mobility
Learn the ankle dorsiflexion test (knee-to-wall test) to assess ankle mobility. Includes step-by-step protocol, normative data, and exercises to improve.
Hip Mobility Assessment: Complete Testing Guide for Athletes
Perform a complete hip mobility assessment. Includes testing protocols for flexion, extension, rotation, and abduction with normative data.
Medicine Ball Slam Power Test: Protocol, Norms & Upper Body Power Assessment
Complete medicine ball slam power test guide with standardized protocol, normative data, technique cues, and how to measure upper body and total body.
Medicine Ball Throw Test: Complete Upper Body Power Testing Protocol
Medicine ball throw test protocol with Poor-to-Excellent norms for 4 groups, power output in watts, and the exact errors that skew your distance.
Reactive Strength Index (RSI) Explained: Testing, Calculation & Training
Learn what the reactive strength index (RSI) measures, how to calculate it from depth jumps, normative values by sport, and how to train reactive.
Rotational Power Measurement: Testing and Training for Athletes
Measure rotational power for athletes. Complete guide to testing protocols, normative data, and sport-specific training for rotation-dominant...
Sergeant Jump Test: Protocol, Scoring & Vertical Jump Norms
Sergeant jump norms by sex, plus basketball, volleyball and sprint benchmarks, and the 5 technique errors that skew your score.
Shoulder Range of Motion Test: Complete Assessment Guide
See normal ranges for all 6 shoulder movements, age-adjusted norms from 18 to 55+, and the 5 GIRD/TARC thresholds that signal injury risk.
Squat Jump Test Protocol: Technique, Norms & Power Assessment
See squat jump height ranges across 5 training levels and both sexes, plus power output in W/kg and how to raise a stalled score.
Standing Long Jump Test: Protocol, Norms & Horizontal Power Assessment
Standing long jump norms by 5 training levels and ages 10-18, plus the arm-swing and takeoff-angle numbers most snippets leave out.
The 8 Best Exercises to Increase Your Vertical Jump
Best exercises vertical jump: the 8 best exercises to increase your vertical jump, backed by sports science. Covers the practical cues coaches use.
Box Jump Progressions: From Beginner to Advanced
Master box jumps with our progressive training guide. Learn proper technique, height progressions, variations, and programming for explosive power.