You can say goodbye to sit-ups with this bodyweight exercise, which strengthens your core and hips without hurting your spine ...

When you buy through links on our articles, Future and its syndication partners may earn a commission. Credit: Getty Images Build bulletproof core muscles using these three exercises without weights, ...

Raise your top leg (right) so that your calf and thigh are parallel to the floor, but your knees are still in line with each other. This is hip abduction. In this position, internally rotate your hip ...