machine crunches

Machine crunches are an effective exercise for building strong and defined abdominal muscles. To perform this exercise, you will require a machine that has a backrest and a weight stack. The machine usually comes with a handle that you can hold onto to stabilize your upper body. To start, adjust the weight to a comfortable and challenging resistance level. Then, sit on the machine with your back pressed into the backrest and your feet placed firmly on the platform. Cross your arms over your chest or place them behind your head, then exhale as you contract your abdominal muscles, pulling your upper body towards your knees. Hold the contraction for a second before slowly lowering your upper body back down to the starting position. Repeat for the desired number of reps. Machine crunches are a great addition to any workout routine as they provide a safe and effective way to work your abs without putting excessive stress on your neck or lower back.