Prepare to feel the burn in every muscle in your body with this 45-minute strength session. You’ll need a barbell, some light weights, a bench, and a mat for the floorwork. The first block is a longer one as you’ll alternate between lower and upper body exercises such as weighted squats and tricep extensions. In block two you’ll work several muscles at once with powerful moves like burpees and push-ups with renegade rows. In your third and final block, you’ll say hello to your core with standing oblique crunches and mountain climbers.