Step-by-step, no fluff.
Practical guides for improving athletic performance and training smarter with measurable data.
Sprint Velocity Plateau: How to Diagnose and Fix Stalled Speed
Stuck sprint times rarely mean the athlete needs more sprints. A field protocol to find whether force, technique, or stiffness is the actual limiter.
Squash Multidirectional Repeat-Lunge Test: Protocol and Scoring
A clean single-effort agility score still fades by game four's back-corner grind. Get the full repeat-lunge protocol, fatigue index formula, and scoring bands.
Standardizing Jump Test Conditions for Reliability: A Protocol Checklist
Footwear, arm swing, gaze, and warm-up quietly wreck jump test comparisons. A locked protocol checklist backed by three studies on what actually to control.
Surfing Paddle Sprint Power Test: Measuring the Explosive Pre-Takeoff Burst on a Swim Bench
Surfing paddle sprint power isn't a 400m time trial pace, it's the last 10-second burst before takeoff. A swim-bench protocol for peak power and fade.
Tennis Serve Velocity: How to Measure It Accurately with Radar
Angle and distance errors can swing tennis serve radar readings by 10-15%. Get the exact placement, tolerances, and verification checks that fix it.
Timing Gate False Triggers: Fixing Sprint Times That Read Too Fast
An arm or trail leg clips the beam before the torso arrives and the gate logs a time that never happened. Here's the height and alignment fix that stops it.
How to Measure Trampoline Time of Flight with an IMU on a Training Mat
Trampoline time of flight decides your score. Learn the IMU protocol for matching competition ToF on a training mat, plus real norms and consistency checks.
Tuck Jump Assessment: A 10-Point Screening Protocol for ACL Injury Risk
A 10-second tuck jump test scores 10 landing flaws tied to ACL injury risk. Get the setup, scoring table, risk bands, and correction fixes coaches use.
When Two VBT Devices Disagree: Reconciling Velocity Readings
LPT says 0.52 m/s, IMU says 0.61 m/s on the same rep. Here is the cross-check protocol to find out which device to trust before you make a training call.
Ultimate Frisbee Layout Agility Test: A Cone-Course Protocol for the Diving Catch Transition
A 4.4 sprinter can still blow the layout. Get the cone-course deceleration test that measures the brake-and-redirect skill behind every diving catch.
Why Deadlift Floor Slack Corrupts Your First-Pull VBT Reading
Deadlift floor slack inflates first-pull velocity before real resistance kicks in. Here's the setup routine that filters the fake reading out for good.
How to Fix a Poor-Fit Load-Velocity Regression When R² Is Low
A scattered load-velocity chart usually means a narrow load span, thin trial count, or an outlier — not bad luck. Diagnose it and rebuild a line you trust.