Frog crunch

Traditional crunches tend to focus only on your rectus abdominis—the muscle group responsible for six-pack abs. However, vertical leg crunches work muscles in your upper body and lower body, including the abdominal muscles, glutes, hip flexors, and hamstrings .24 Şub 2022

Intensifying the Exercise. Do 3 sets of 15 repetitions . To really challenge yourself with a difficult routine, do 3 sets of 15 vertical leg crunches, with a brief pause in between sets to keep your muscles working.

Place hands behind your knees. Using the strength in your arms and your abs, lift your shoulder blades off of the floor; shoulder blades should remain above the ground for the remainder of the exercise. While holding your legs, contract your abdominal muscles and lift the chest up toward the ceiling, 10-20 times.

As well as working your lower abs, the leg raise also improves the strength and flexibility of your hips and lower back , which is a considerable benefit for anyone who spends a lot of time sitting at a desk.