Final answer:
Physical activities such as walking or swimming can increase joint range of motion and flexibility. The correct option is A) They increase the joint range of motion and flexibility.
Step-by-step explanation:
Engaging in physical activities such as walking or swimming is generally beneficial for joints. Regular, moderate exercise helps to maintain joint health by promoting flexibility and increasing the range of motion. When done correctly, these activities contribute to overall joint mobility and function.
Walking and swimming typically do not decrease joint range of motion; in fact, they often enhance it.Regular physical activity, including walking and swimming, can increase joint range of motion without necessarily making joints less stable.When performed appropriately, these activities should not strain joints to the extent of decreasing range of motion and flexibility. Hence option A is correct.