More isn't better. Optimal is. Training volume — total sets per muscle per week — has a sweet spot that beats both ends.
There is a lot of jargon around this one. Strip it away and the math is genuinely simple. More isn't better. Optimal is. Training volume — total sets per muscle per week — has a sweet spot that beats both ends.
10–20 working sets per muscle per week for most lifters. Below 6 = maintenance only. Above 25 = diminishing returns + recovery debt.
Hard sets (within 1–2 reps of failure) count toward volume. Easy warm-up sets don't.
Same muscle 2–3× per week beats once per week at equal weekly volume. Better synthesis, easier recovery per session.
Add 2.5–5kg or 1 rep every 1–2 weeks. Stalling = deload or rotate exercises.
Is more cardio worse for muscle? Only if it cuts into recovery or calories. 3 sessions/week is fine.
Do I need to deload? Every 6–8 weeks of hard training, cut volume 50% for one week. Bigger gains long-term.
Bookmark the calculator linked above — you will need it more often than you think.