If you’re tired of circuiting 20 different machines just to finish your total-body workout, try suspension training with a TRX, an all-in-one piece of equipment that combines strength and flexibility.

Truth is, you don’t have to use stacks of weights to build muscle. Suspension training uses your own bodyweight from different angles to engage more muscle groups at the same time. Think of it this way: Something as simple as a chest press or biceps curl becomes a core-stabilization exercise.

“TRX trains for reactive stability," says Chris Frankel, head of human performance at TRX. “If your core isn’t tight, you’ll lose balance on the straps. Bracing your core before you move becomes second nature. You’re relying on your own ability to marry your center of gravity with your base of support.”

Here are Frankel's five favorite TRX exercises that’ll work your entire body. Start with 30-45 seconds of work to every 30 seconds of rest. Don’t rush. The slower you go, the more time with the tension, and the more strength you’re building from each exercise.