Final answer:
Aquatic therapy is the form of therapy that combines relieving joint pain, increasing muscle strength, and decreasing stress on joints. Performed in water, it strengthens muscles due to water resistance while buoyancy reduces joint load, ideal for osteoarthritis management and overseen by physical therapists.
Step-by-step explanation:
The type of therapy that relieves pain and increases muscle strength without putting additional weight on the joints is typically known as aquatic or water therapy. This form of therapy involves doing exercises in the water. The buoyancy of water supports the body and reduces stress on the joints, while the resistance of the water strengthens muscles.
It is particularly beneficial for individuals with conditions like osteoarthritis, as low-impact exercise can lessen pain and improve symptoms. Physical therapists, who are highly educated in body movement mechanics, often design and supervise these water-based exercise routines to ensure that muscles are strengthened without undue strain on the joints.
Furthermore, decreasing stress on joints can also involve resting, using mobility devices such as canes for better stability, and in the case of overweight individuals, losing weight to reduce joint stress. High-impact activities and excessive force can sometimes lead to injuries in the muscles and connective tissues, which is why low-impact exercises such as swimming, water aerobics, and biking are recommended. These activities help maintain joint mobility and muscle strength, which in turn can improve alignment and reduce stress on joints.