Skip sit-ups and try this 8-move dumbbell workout to build a stronger core and hips. While sit-ups remain popular at gyms, on social media and in fitness workout plans, they could do more harm than ...

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.

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.

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.

Standing abs workouts are a great way to strengthen your core without using common exercises like sit-ups, crunches and planks ... side bends and twisting motions with the woodchop.