1-2 Sets to failure/close to failure double progression/linear progression (trying to understand programming)
I notice that a lot of bodybuilders are using low-volume approaches (1–2 hard sets) with simple double progression or linear progression. Why don't more powerlifters or powerbuilders use something similar? I know beginner programs often do, but once you get to intermediate or advanced levels, it seems like programming becomes much more complicated with higher volume and moderate-to-low intensity (percentages deloads etc..).
Why not keep it simple with low-to-moderate volume and high intensity?
For example:
- Squat: 2×5 or 3×5. If you get 5 reps on every set, increase the weight by 2.5 kg next week. Personally, I don't think double progression (like 5–9 reps) makes much sense on barbell squats because they're so fatiguing. I'd rather just progress the weight once I hit all my sets for 5.
- Deadlift: 1×5 only. Progress weekly with small weight increases.
- Bench and OHP: Either double progression or linear progression seems to work well.
My thinking is that if fatigue and volume are managed properly, why would someone stall? If someone stalls on a moderate- or low-volume, high-intensity program, wouldn't the first things to look at be recovery (sleep, diet, stress), too much accessory volume, or simply needing more rest days?
So my main question is: Is high volume really worth it for strength, or is it mostly necessary for some people because they can't tolerate high intensity as well?
I'd love to hear from people with coaching or powerlifting experience, because I'm trying to understand the reasoning behind more complex, higher-volume programming.