The corkscrew exercise is performed lying on your back with your hands placed on the floor next to your hips or behind your head for a more challenging variation. From here, you’ll softly bend your ...

To work the lateral muscles while doing sit-ups, twist slightly to the left for five sit-ups, and then do the same thing to the right for five repetitions.

Optimal sets and reps: 3 to 4 sets of 15 to 30 reps As you come up in the traditional sit-up, twist your torso toward one side, bringing the opposite elbow toward the knee on the twisting side.

twist and raise your legs and knees. This way, you replicate some of the movements you do with floor-based abs moves, like crunches and sit-ups, so you can work the upper and lower abs ...

Your oblique muscles control the stabilization and rotation of your torso, allowing you to twist from side to side, so are essential in everyday tasks like standing up and sitting down ...

The main difference between sit-ups and crunches is the range of motion involved in each exercise. Sit-ups require you to lift all the way up, while crunches require a slight lift off the ground.