Core strength. Core strength is one of the biggest motivators for doing situps.
Improved muscle mass. Situps build muscle strength in the abdominal and hip muscles.
Better balance and stability.
Reduced risk of back pain and injury.
Situps work the rectus abdominis, transverse abdominis, and obliques in addition to your hip flexors, chest, and neck. They promote good posture by working your lower back and gluteal muscles. With a larger range of motion, situps target more muscles than crunches and static core exercises.
According to Livestrong, combining three sets of sit-ups with 25 to 50 repetitions each is how to build and sculpt your abs. Better still, you only need to do your crunches three times a week if you're also combining this with cardio and strength training.
1.place your cellphone or laptop in front of you
2.fit you into camera screen