Yes, heavy weights and high-intensity workouts are great for building muscle and torching fat—but low-impact strength workouts deserve a place in your routine, too. (Don't believe it? Just take a look at what a week of perfectly balanced workouts actually looks like.)
For example, this 20-minute full-body workout from trainer Rachel Piskin, cofounder of ChaiseFitness, uses just your bodyweight and a resistance band (or 2-pound dumbbells, if you don't have a band), but it'll still have your muscles on fire. The ChaiseFitness method combines resistance training with ballet techniques to build long, lean muscles and teach strong posture. (Great news: If you love this workout, you can get more by trying out the studio's Chaise On Demand service, which lets you stream live and pre-recorded classes right at home.)
All you'll need is a medium-strength resistance band that's about 60 inches in length or a pair of 2-pound hand weights. A mat is optional but might provide more comfort depending on where you're working out. Just follow along with Piskin in this 20-minute full-body workout video to burn through plié squats and total-body balancing moves, then finish with core work on the floor. To make it harder, use a more difficult resistance band or heavier weights. To make it easier, ditch the band and weights and do the exercises with just your bodyweight.