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.
1 In fact, weak muscles around the knee can lead to osteoarthritis. 2  Other illnesse s. 3  People with rheumatoid arthritis, the second most common type of arthritis, are also more likely to develop osteoarthritis. In fact, weak muscles around the knee can lead to osteoarthritis. 2  Other illnesse s. 3  People with rheumatoid arthritis, the second most common type of arthritis, are also more likely to develop osteoarthritis.