Doing a special warm-up before lifting weights doesn't make you any stronger in chest, leg, or back exercises than just lifting weights normally during full-body workouts.

A shorter, easier leg workout gives the same muscle and strength gains as a longer, harder one for beginners, even though you're doing less overall work.

Two different ways of lifting weights—pre-exhaustion and traditional—both help you get stronger and last longer during exercise about the same amount.

A lighter warm-up exercise before heavier lifting gives the same muscle and strength gains as just doing the heavy lifting alone, even though you're doing less overall work.

Doing a simple exercise right before a harder one with no break doesn't make you stronger or build more muscle better than just doing regular workouts, according to current research.

Doing all your sets for one exercise before switching to the next might build a tiny bit more muscle than mixing exercises up, but it's such a small difference we can't be sure it's real.