
If you’ve got a spare medium to heavy dumbbell handy, pick it up and try this beast-mode one-dumbbell workout to chisel your chest, back and legs. You only need five moves and 20 minutes to get it done, and you don’t need any other equipment, just an adjustable dumbbell or regular hex.
Don’t be fooled, though. We designed this dumbbell workout to scorch the major muscle groups using several techniques that won’t rely on heavy weights — yep, there are ways to build muscle without lifting heavier weights. To get the best results over time, you’ll need to add this routine to your existing exercise program and repeat it as you get fitter and stronger.