measurement error
IMU Sampling Rate Too Low for Plyometrics: How to Diagnose and Fix It
Ground contact under 200ms needs real timing resolution. See how low IMU sampling rate creates quantization errors that skew RSI, and the minimum Hz to 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.
Fixing Velocity Readings That Vary Between Sessions
Same load, different bar speed every week? Isolate sensor position, plate loading, and warm-up order to remove session-to-session velocity drift for good.
IMU Sensor Placement: Best Practices for Reliable Movement Data
Where you strap an IMU changes the number it reports. A field guide to lumbar, sternal, wrist, and shank mounts, with the errors that quietly wreck data.
Why Most Lifters Overestimate Their 1RM: The Science of Measurement Error
78% of lifters overestimate their 1RM, missing by 8.7% on average. IMU velocity data catches the error and fixes load prescription for good.