Step-by-step, no fluff.
Practical guides for improving athletic performance and training smarter with measurable data.
How to Track Kettlebell Swing Velocity and Power with an IMU Sensor
Kettlebell swing velocity depends on where you mount the IMU: bell, wrist, or hip. Placement protocols, load benchmarks, and 2 cited studies.
Korfball Shooting Elevation: Testing Clearance Over the High Post
A shooter keeps getting blocked at the post despite a clean release. A field protocol that turns that into a measurable clearance-margin number.
Lacrosse Shot Speed Radar Measurement: Correcting Release-Angle Error
Radar angle error can swing lacrosse shot speed readings by 15-20%. Get the crease-position setup, bearing tolerances, and checks that fix it.
Lacrosse Shot Speed Without a Radar Gun: Separating Crosse Sweep Velocity From Release Timing
Estimate lacrosse shot speed without a radar gun. See the crosse-sweep vs. release-timing IMU protocol, benchmark bands, and 2 cited studies behind it.
Why Your Lactate Readings Are Inconsistent (and How to Fix It)
Same effort, different lactate numbers every time? Sampling site, sweat contamination, and strip handling errors are usually to blame, not the meter.
Reconciling Laser/Doppler Sprint Speed With Timing Gates
Laser peak speed and timing-gate splits rarely match, and it is not a calibration error. The averaging math behind the gap, plus a field protocol to prove it.
Linear Position Transducer Cable-Angle Error Fix: Correcting Off-Vertical Pull
An off-vertical LPT cable inflates displacement and velocity readings. See why, how to test your setup, and the mount fix that corrects it for good.
Load Cell Hysteresis Is Making Your IMTP Scores Read Low: How to Diagnose and Re-Zero It
Repeated IMTP trials reading lower each time? Load cell hysteresis and zero creep between pulls could be why. Here's how to test for it and re-zero correctly.
The Loaded-Carry Grip Endurance Test: A Timed Protocol You Can Standardize and Repeat
A timed farmer's-carry protocol that scores grip endurance, not one-rep strength. Load selection, failure criteria, benchmarks, and the studies behind it.
Long Jump Run-Up Velocity and Board Accuracy Testing
Long jump approach speed test that tracks final-6-stride velocity against clean-jump rate, so a rising speed number stops hiding a rising foul problem.
Long Jump Runway Speed and Board Accuracy: Measuring Both Together
Long jump approach speed test up 3%, but fouls up too? A speed-accuracy matrix tracks velocity and board precision together, not just one number.
Lumbar Disc Injury: Milestones for Returning to the Barbell
Pain-free walking isn't spine-ready. A flexion-tolerance roadmap with load, ROM, and rep milestones for getting a herniated disc back under the barbell.