Also, make sure you have something soft beneath you to support your back. This is the workout: 10 partial single-arm sit-ups 15 leg lifts Side plank (on forearm) with dumbbell reach 15 reverse ...

Bear plank exercises support the spine and enhance the production force for running, jumping, squatting, and other sports.

“The bodyweight plank is such an efficient way to work your ... By placing one leg on top of the other, the lower leg is forced to support extra load, she says. This provides a bonus challenge ...

As you get stronger, try to increase the time. Plank variations: Side plank: Support yourself on one side, with one forearm on the ground and feet stacked. Keep the body in a straight line.