Tag · 3 articles
sensor accuracy
how to·12 min read
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.
velocity-based-training·LPT vs IMU·sensor accuracy
how to·9 min read
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.
deadlift·VBT testing·first pull
research·9 min read
Smartphone Bar Velocity Apps: How Accurate Are They?
Validity studies pit camera VBT apps against lab transducers: accuracy holds at slow bar speeds but slips on fast jump squats. Here's the error margin.
smartphone app validity·barbell velocity tracking·VBT