biomechanics
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.
Force-Plate CMJ Phase Identification Errors: How Unweighting, Braking and Propulsion Get Mislabeled
Braking RFD jumped 50% overnight? Your force plate likely mislabeled the braking-propulsion boundary. Fix CMJ phase identification errors before they skew data.
Gymnastics Landing Force Asymmetry: A Stuck-Landing Test for Quantifying Left-Right Impact Imbalance
A clean stuck landing can still split force unevenly left to right. Get the dual-plate protocol, asymmetry index formula, and interpretation bands here.
Measuring Handball Jump Shot Release Velocity With an IMU: Separating Arm Whip From Body Momentum
Jump shots leave the ground before release, so arm whip has to cover what body momentum can't. Dual-IMU protocol, benchmarks, and 2 cited handball 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 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.
Triple Jump Phase Balance: Measuring the Hop-Step-Jump Split
Total distance keeps climbing while the step phase quietly collapses. Measure hop-step-jump percentages, spot the break, and fix it before it costs meters.
High Jump Curved Approach Speed: Finding the Lean-Radius Balance Point
High jump curved approach speed only helps when radius and lean scale with it. The physics, two key studies, and a field test to find your athlete's ceiling.
Gymnastics Vault Run-Up Sprint Test: Measuring the Final 5-Meter Acceleration
Gymnastics vault difficulty tracks final 5m run-up speed, not average pace. Get the timing-gate protocol, elite benchmarks by vault type, and 2 cited studies.
Measuring Arm Velocity in the Handball Wing Shot: Separating Arm Speed from Trunk Rotation
Wing shots can't use the trunk rotation a jump shot uses. See the dual-IMU protocol, contribution bands, and 2 cited studies behind arm velocity share.
Softball Windmill Pitch Velocity: A Field Test Protocol for Hip-Driven Mechanics
A baseball radar setup undersells windmill velocity. Get the hip-first test protocol, distance-normalized benchmarks, and 2 cited biomechanics studies.
Why Later Sprint Reps Slow Down: A Fatigue Check
A 12-point split spread on rep 5 isn't the same event as an even 7% drop across every split — here's how to read the difference and when to stop the set.