start lying on your back with your lower back pressed into the floor, arms and legs extended. curl your shoulders off the floor and bring your arms straight up over your chest. keeping your right leg straight, bend your left leg so that it forms a 90-degree angle at the hip, keeping your calf parallel to the floor.
this is the simple answer to the question of “what are the best core exercises?” all wrapped up in one.
the core is a good place to start. work that and more in our free get fit fast training plan. 