Step 1: Hydrotherapy benefits.
Hydrotherapy is the use of water for therapeutic purposes.
It helps in pain relief, improving circulation, and restoring functional activities.
Step 2: Analyzing the options.
- (A) Pain relief: Hydrotherapy is known for its soothing effects and pain relief, especially for musculoskeletal conditions.
- (B) Increase in swelling: This is not a therapeutic effect; in fact, hydrotherapy often helps reduce swelling.
- (C) Improvement in circulation: Warm water can help in enhancing blood flow and circulation.
- (D) Restoration of functional activities: Hydrotherapy can help individuals regain strength and mobility.
Step 3: Conclusion.
Thus, the correct therapeutic effects of hydrotherapy are pain relief, improvement in circulation, and restoration of functional activities. Therefore, the correct answer is (4).