for the lazier of my readers

The paper “Minimum Effective Training Dose Required for 1RM Strength in Powerlifters” (PMC34527944 Patroklos Androulakis-Korakakis  et al) explores the concept of the “Minimum Effective Training Dose” (METD). Basically, what is the least you can do to boost strength.

After numerous tests and interviews, they concluded

You can expect to gain strength by doing:3-6 working sets of 1-5 repetitions each week, with these sets spread across 1-3 sessions per week per powerlift, using loads above 80% 1RM at a Rate of Perceived Exertion (RPE) of 7.5-9.5 for 6-12 weeks.

If that was too much its possible to perform autoregulated single repetition sets at an RPE of 9-9.5 though strength gains will be less likely to be meaningful.

However, the addition of 2-3 back-off sets at ~80% of the single repetitions load, may produce greater gains over 6 weeks while following a 2-3-1 squat-bench press-deadlift weekly training frequency.

it was observed that when utilizing accessory exercises in the context of METD, PL athletes typically utilize 1-3 accessory exercises per powerlift, at an RPE in the range of 7-9 and utilize a repetition range of ~6-10 repetitions.