5 Rep Ranges You MUST Know for Hypertrophy After 40 (Andy Baker)

Wits & Weights | Strength & Fat Loss Over 40 · Sep 17, 2026 · 1h 7m · transcript

If 5 to 30 reps can all build muscle, why do some rep ranges clearly work better than others?

After 40, could the “science-based” advice you’re following be the exact reason your progress has stalled?

I brought strength coach Andy Baker back to challenge one of the most oversimplified ideas in evidence-based fitness: that rep ranges are basically interchangeable.

We break down the five rep ranges you need to understand, from heavy 1 to 4 rep strength work through 20 to 30 rep sets, and exactly where each belongs in your training.

You’ll learn why 4 to 8 reps may be the “meat and potatoes” for…