Train to failure or stop short? What strength experts say
September 29, 2026 · 21 min read
Pavel Tsatsouline treats strength as a skill practiced without failure, while Galpin and Norton see a place for failure in hypertrophy, and Huberman's muscle episode covers recovery costs. It helps lifters, especially older ones, choose intensity that builds without breaking.
The rules, numbers and steps worth keeping in front of you.
- Strength: stop well short of failure. Size: end sets close to it (all four sources).
- Pavel Tsatsouline's greasing the groove: 75 to 85 percent of max, about half the reps you could do, at least 10 minutes between sets.
- Pavel: six sets of three build as much strength as three sets of six, with far less fatigue.
- Andy Galpin's three to five system for strength: three to five sets, reps, exercises, days and minutes of rest.
- Galpin: intensity drives strength; volume drives hypertrophy.
- Galpin: for size, end sets within about two reps of failure; Layne Norton says within about five.
- Galpin: aim for at least 10 hard sets per muscle per week, more realistically 15 to 20.
- Put true failure on the last set, the last exercise, or machine and single-joint lifts.
- Andrew Huberman: about 10 percent of sets or workouts to failure; the rest short of it.
- Huberman: a 10 to 20 percent drop in morning grip strength means you are not recovered.
- Heavy singles sparingly: around 90 percent (Pavel); about seven total reps above 90 percent per session (Galpin).
- Norton: beginners misjudge reps in reserve by about five, so test true failure occasionally, with a spotter.
- Galpin and Huberman: avoid cold plunges around hypertrophy sessions.
- Heart or blood pressure concerns, or an injury: check with a doctor or qualified coach first.
This is the short form. The full insight has every expert's reasoning, their own words and the sources.