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.
For example, when leg extensions are the agonist exercise, lying leg curls are a good antagonist exercise (since the hamstrings are antagonists to the quadriceps). It's not the best pairing, though, because leg extensions are performed while seated, and lying leg curls are performed while curls are a good substitute.