Popsugar Fitness Workouts 25-Minute Cardio and Strength-Training Circuit Workout A 25-Minute Cardio and Strength Workout, No Equipment Needed February 15, 2017 by Leta Shy View On One Page Photo 3 of 9 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 3 Curtsy Lunge to Side Twist Start from standing, and step your left leg behind you and to the right so your thighs cross, bending both knees as if you were curtsying. Twist to the right before coming back to center. Return to standing, and switch sides, twisting to the left before you come back to center. Perform as many proper reps as possible for 45 seconds, alternating sides, then rest for 15 seconds. Previous Next Start Slideshow WorkoutsStrength TrainingBarry's Bootcamp30-Minute WorkoutsFull-Body Workouts