I always aimed for a fixed number of reps, sets, and weight. Lately, however, I've focused on maintaining focus on muscular sensation: if I can't focus on how the muscles feel in response to each rep, I make adjustments:
- cut a set short
- change number of planned sets
- remain at a given weight instead of ramping up
Conversely, I might extend sets, add weight, etc. If I can maintain sensation.
Previously, I almost completely ignored how bad a set might feel, and 'pushed through the pain'.
Do you balance your plans using muscular feedback? How important is this?