In this lesson, Kisha Finch focuses on the importance of back flexibility and hip strength for high jumpers, explaining how these elements contribute to proper arching and landing techniques. She starts by guiding athletes through essential warm-up exercises like back bends and hip bridges, emphasizing their role in developing a strong, controlled jump. Kisha explains how the exercises help athletes master the crucial movement of arching their body over the bar while keeping their heels together and pushing their hips upward. Additionally, she introduces the "falling bridge" exercise to reinforce strength and proper alignment during the jump, ensuring that athletes land with controlled posture.