RPE

RPE - Listening to your effort

Definition

RPE (Rate of Perceived Exertion) is a 1-10 scale used to measure how hard a set felt subjectively. Originally developed by Borg in cardio, the modern strength version (Mike Tuchscherer) maps directly to reps in reserve.

💡 RPE is the gold-standard tool for autoregulating intensity. Instead of fixed percentages, you adjust the load to your daily form.

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The strength training RPE scale

RPE	Description	Reps in reserve
10	Maximum, no rep left	0
9.5	Maybe 1 rep, not sure	0-1
9	1 rep left in the tank	1
8	2 reps left	2
7	3 reps left	3
6	Easy, 4+ reps left	4+
1-5	Warm-up	Many

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Benefits of RPE

• ✅ Daily autoregulation: adjusts the load to your real form
• ✅ Avoids overtraining: reduces volume on rough days
• ✅ Maximizes good days: pushes harder when you feel great
• ✅ Reduces injury risk: stops before form breaks down
• ✅ Works without 1RM testing: no need for max-out sessions

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How to use RPE in practice

• ✅ Hypertrophy: target RPE 7-9 most working sets
• ✅ Strength: target RPE 8-9 on heavy sets
• ✅ Deload: keep RPE at 5-7
• ✅ Stay honest: better to under-rate than over-rate
• ✅ Practice: rating accuracy improves with experience

⚠️ Beginners often over-rate (think they're at RPE 10 when they have 3-4 reps left). Practice and video review help calibrate.

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Common mistakes

• ❌ Always pushing to RPE 10 (junk volume + injury)
• ❌ Never reaching RPE 8+ (insufficient stimulus)
• ❌ Confusing fatigue and RPE (you can be tired without the set being RPE 10)
• ❌ Lying to yourself about the rating

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Key takeaways

RPE is your best autoregulation tool. Master it to adjust intensity to your real daily form. Most working sets at RPE 7-9, deload at 5-7, save RPE 10 for rare moments. Honest is better than optimistic.