band standing twisting crunch

Stand with your feet shoulder-width apart and place the band around your upper back, crossing it in front of your chest. Hold the ends of the band with your hands, keeping your elbows bent and close to your sides. Engage your abs and twist your torso to one side, bringing your elbow towards the opposite knee. Pause for a moment, then return to the starting position. Repeat on the other side. Continue alternating sides for the desired number of repetitions.