-
I know this feeling, every session feeling heavier and heavier until form breaks down significantly, deload and work back through, I understand that the eating and sleeping can be reason for this. I mean actual total plateau, like your body can't actually get any stronger on the linear progression and you need to switch up programs (I have been led to believe this does happen) - perhaps this might be around 140kg x5x3 for back squat for a healthy young man? Anyone here up around that level?
If you do Stronglifts, you WILL plateau at some stage. I struggle with the OHP and expect to plateau soon. SL gives you three opportunities to complete the reps - effectively a week. If you fail, it will drop the weight by 10% and you work back up. This has happened me a number of times and I managed to break through the plateau each time. An example - squat at 100kg. Lift the bar, go down, don't go up! Fail. 3 tries at this and if you continue to lose reps, weight drops to 90kg. If you complete another three days the bar will be back at 100kg - 90, 92.5, 95, 97.5. Hopefully you will break the plateau at that point.
To address what it feels like - it feels heavy, very heavy. I am only a newbie but I know what heavy means - you wobble, you may twist or shake, you forget about form, you sweat, you get annoyed, you grit your teeth, you push or pull against an immovable object and get frustrated. The feeling of getting over the plateau is a much nicer place - you feel as if you have personally achieved something - which you have; you feel uplifted and have more confidence with the new heavier weight. Until the next plateau ....
Richard