In some cases, passing a drivers ed final exam can substitute for the written exam. No matter how the test is taken, students must pass with at least a 70% or higher, depending on that stateâs minimum. Once he or she passes, a teen driver will be issued a learners permit.
Learn how to protect your knees and reduce your risk of injury. The knee's vulnerability to injury depends on the strength of its neighboring muscles. A weak gluteus medius, or outer gluteal muscle, increases the chance of a knee injury by a factor of three. This muscle is critical for knee health, because it acts as a steering wheel for the entire leg.
Arthritis in your knee can cause dips and grooves to form in the knee joint. These uneven surfaces cause the joint to âcatchâ instead of rotating smoothly. You might find yourself rising from a chair when the joint gets stuck and triggers an episode of knee buckling.