I talked about this before. A rest/pause set counts as ONE set.
For example, if. you do 8 reps/rest 20 sec/3 reps/rest 20 sec/1 rep… that’s ONE set, not three and that ONE set gives you 9-10 effective reps where if you only do the initial 8 reps you have 5.
Now the question becomes: how many rest/pause sets can you do on an exercise in a workout? 1, 2, 3 , 4?
The answer is, as always “it depends”.
People don’t all have the same tolerance for volume.
For example, I once trained a bobsleigh athlete who could only perform 6-9 sets per workout TOTAL. Not per exercise, for the whole workout. And he could only recover from 2 or maybe 3 lifting sessions a week.
BUT he still ended up super strong for his size (bodyweight of 82kg, bench 190kg, squat 250kg, power clean 150kg).
I’ve always trained athletes (yes natural) who could handle 30 sets per workout and 140-150 sets per week total.
So it’s impossible for me to tell you now many rest/pause sets YOU would be able to recover from.
I personally like to periodize the use of rest/pause. For example:
*Just for the sake of the example, let’s say that a normal set is 8 reps and a rest/pause set is 8+4
Week 1: 3 regular sets/no rest/pause set (15 effective reps total)
Week 2: 2 regular sets/1 rest/pause set (19 effective reps)
Week 3: 1 regular set/2 rest/pause sets (23 effective reps)
Week 4: 3 rest/pause sets (27 effective reps)
Week 5: deload