Step 1: Understanding the Concept:
Kyphosis is an abnormal outward curvature of the upper back (hunchback). To correct it, asanas that involve backward bending and chest expansion are required to counteract the forward slouch.
Step 2: Detailed Explanation:
1. Dhanurasana (Bow Pose): Stretches the entire front of the body and improves spinal flexibility.
2. Chakrasana (Wheel Pose): Provides a deep backward bend that opens the chest and corrects the rounded shoulders.
3. Bhujangasana (Cobra Pose): Specifically strengthens the upper back muscles and pushes the thoracic spine inward.
4. Asanas like Halasana are forward bends and would actually worsen Kyphosis.
Step 3: Final Answer:
Dhanurasana, Chakrasana, and Bhujangasana are used to correct Kyphosis.