Bar speed training, also known as velocity-based training (VBT), is one of the most effective and precise ways to autoregulate strength training intensity. While traditional methods like RPE or RIR rely on how you feel, bar speed is objective and measures how you’re actually performing.
Because rep velocity directly reflects readiness, fatigue, and true training intensity, VBT lets you adjust weight with measurable accuracy instead of guesswork. For lifters who want a data-driven, objective method to improve strength, bar speed training is the gold standard.
Bar speed training, or velocity-based training (VBT), measures how fast the barbell moves during each rep to adjust training intensity in real time.
More importantly, bar speed can predict %1RM, reps in reserve, and neuromuscular fatigue, making it a very accurate and objective method of autoregulation.
In general, velocity-based training is used more often in strength and power training. Bar speed can also be used for hypertrophy, especially for general fatigue management and spotting higher RPE.
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