Questions: Extending a joint beyond the zero position is always an abnormal movement.

The answer is: False.

Explanation:

1. Normal Range of Motion: Extending a joint beyond the zero position can be normal for some joints, depending on the individual's flexibility and the specific joint involved. For example, hyperextension is common in the elbows and knees for some people.

2. Joint-Specific Movements: Certain joints, like the shoulder, have a wide range of motion and can extend beyond the zero position without being considered abnormal.

3. Context Matters: The context of the movement (such as in sports or physical activities) can determine whether extending beyond the zero position is normal or abnormal.

In summary, extending a joint beyond the zero position is not always abnormal; it depends on the joint and the individual's normal range of motion.