â¢It allows you to temporarilly disconnect your wiring from the telephone company's wiring for troubleshooting purposes. Generally, the demarc is located on the exterior of your home in a grey or black box.
Leg Curls. In leg curls, you either sit or lie on the bench, or you stand facing the cables with your legs straight. After securing your ankles under the pad or attaching the cuff to your ankle, you bend your knee to bring your heel toward your bottom.
Dumbbell Preacher Curl. This exercise when perform correctly has the same movement as the concentration curl. The main difference between the two exercises is the concentration curl your upper arm is resting on inside of your leg the preacher curl on the pad. With both exercises you are unable to use your body to help with the lift.