I'm training weighted pull-ups to increase my 1 RM. My understanding is that I should do 5 reps or less. My question is should I adjust the weight each set to keep hitting 5 reps? Or should I just pick a 'constant' weight as long as it keeps my reps under 5?
For example: I pick 75 lbs added weight for my weighted pulls and my first set I do 5 reps but by my last set I can only do 2 reps.
Any studies to support your answers are appreciated!
Also I've read 5 reps or less but is there any reason I should aim specifically for 5 rep or maybe only 1 rep? Thanks!