Position yourself at the top of a pull-up bar using a box or step. Grip the bar with a shoulder-width, overhand grip. Engage your core and maintain a straight body. Slowly lower yourself for 3-5 seconds until arms are fully extended. Step back onto the box and repeat.
Control the descent for maximum muscle engagement. Keep shoulders down and back. Use a box/step for comfortable starting position. Breathe steadily, exhaling during the descent. Start with fewer reps and increase gradually.