If you're already experienced with lifting weights, doing drop sets (lowering the weight after failure) doesn't help you get stronger than doing regular sets, as long as you do the same total amount of work.

If you do the same total amount of work, using drop sets won’t make your muscles bigger or stronger than doing regular sets over two months.

Doing drop sets (lifting heavy, then lighter weights without rest) builds strength just as well as doing regular sets with the same total weight, at least in young men who already lift weights.

Drop sets don’t make you stronger than regular sets if you’re lifting moderate weights — but we don’t know if they’d work better or worse if you lifted really heavy weights.

Even if you do the same total amount of work, drop sets don’t make your muscles grow more than regular sets — whether you match the weight lifted or not, the results are about the same.

Drop set training enhances muscular endurance (repetition capacity at submaximal loads) to a greater extent than traditional resistance training protocols with matched volume.