Rep ranges come down to balancing several practical elements for me. I pick a number of reps that lets me judge my distance from true muscular exhaustion, reaches that point without extra exhaustion elsewhere or in other body parts first, avoids joint strain, and does not drag on too long. For my own workouts that lands around eight to twelve reps each time. Research over recent decades has looked at weekly set totals and keeps pointing to the same patterns. When each set stops three reps or fewer short of failure, gains appear even with around five sets total across the week. Adding more sets produces smaller extra gains each time, yet measurements have continued all the way to forty sets and still recorded further size increases. Some online videos claim the extra size is just swelling, yet biopsy data from certain studies lines up with the size changes, which swelling alone would not explain. Nothing shows forty sets as an absolute limit either; the work simply stopped there. Around fifteen to twenty sets per week feels like the best balance of results versus work for me personally. That only holds if recovery stays possible, since pushing past what the body can handle brings no benefit. Recovery speed varies with many elements and can shift week to week, so when progress stalls long term and other adjustments to food or rest do not fix it, lowering the total sets often helps. Once weights get heavier with strength gains, keeping the same volume for every muscle group may become unrealistic. In those situations the total volume itself can be adjusted, such as cutting back on sets for one area that has already reached the desired size to free up recovery for another. Fractional counting applies with multi-joint movements, where the main target muscle gets full credit, helpers get partial credit, and so on. In short, extra sets per muscle each week, taken near or at failure, have not shown any upper limit on further growth so long as recovery keeps pace, though each added set yields less than the one before and the balance tips as totals rise.