This can also be good for stretching out the spine and bettering its flexibility. That is the very best exercise for cervical spondylosis that helps in stretching your thoracic space, and it is good for your neck. Inhale and exhale as you go about stretching. Chapter 2 Classic Qigong Theories: 2.1 Theories of Medical Qigong. 2.2 Theories of Daoist, Buddhist, Confucian, and Martial Arts Qigong. 3.