Step-by-step, no fluff.
Practical guides for improving athletic performance and training smarter with measurable data.
Ankle Sprain Return-to-Play: Hop Test and Balance Cutoffs Before Cutting Resumes
Pain-free jogging isn't clearance to cut. A hop-and-balance protocol with the LSI and reach cutoffs research actually supports before cutting resumes.
Bands and Chains Wreck Your VBT Velocity Readings: How to Fix It
Add bands or chains and your velocity zones lie. See why accommodating resistance skews VBT readings, and how to test and prescribe around it.
Fixing Barometric Altimeter Drift That Skews Jump Height Readings Indoors
Indoor HVAC and door-driven pressure swings quietly drift a barometric altimeter's baseline, inflating jump height over a session. Here is the re-zero fix.
Beach Volleyball Jump-Serve Contact Velocity Test: Measuring Toss-to-Contact Timing on Sand
Radar clocks the ball, not why the reading swings 15 km/h between serves. Get the toss-to-contact timing protocol, sand setup, and 2 cited studies.
Bluetooth Dropout Losing VBT Reps Mid-Set: How to Diagnose and Fix It
A set logs 4 of 6 reps and the velocity chart has a gap. Split the cause into interference, distance and buffering, then recover the missing data.
How to Test Bobsled Push-Start Power Without a Push Track: A 15m/30m Weighted Sled Protocol
No ice push track? Measure bobsled push-start power with a 15m/30m weighted sled protocol, individualized load ranges, and 2 cited studies.
How to Measure Boxing Punch Impact Force With a Target-Mounted Accelerometer
Boxing punch impact force test: mount a target accelerometer to isolate per-punch force and track power decay across combinations, backed by 2 cited studies.
Chest-Strap Heart Rate Dropouts During Sprints: How to Diagnose and Fix Them
The trace looks fine on the jog in, then flatlines or spikes to 220 the moment you hit top speed. Separate the real causes and stop losing sprint HR data.
Clean and Jerk Dip-Drive Velocity Tracking: Is It a Depth Problem or a Timing Problem?
A missed jerk can come from a shallow dip or a slow reversal — the bar trace looks the same either way. Track transition velocity to tell them apart.
Concussion Collision Readiness: Dual-Task Reactive Balance and Neck Stability
Symptom-free and a clean BESS score are not collision-ready. A dual-task reactive-balance and neck-stability protocol for the final call before full contact.
Fixing Contact-Time Threshold Misdetection in Reactive Jump Tests
A force or accel threshold set too high shortens ground contact time and inflates RSI; set too low, it does the opposite. Here's how to find the right value.
Cricket Pace Bowling Run-Up Velocity Protocol: Timing the Final Approach Acceleration
Release speed alone can't show where bowling pace breaks down. Test the final 5m run-up acceleration zone instead — protocol, benchmarks, 2 cited studies.