For a fit crowd, an inhale on one posture, and an exhale on the following posture will be fine, but the breath should still be complete. The Chair Yoga teacher is not a "drill sergeant," so the pace of any Chair Yoga Vinyasa flow should be slow, thorough, and controlled. Chair Yoga Vinyasa Flow is not a race. The absolute and top priority is to keep Yoga practice safe. Fun is one thing, but safety overrides fun every time.
The injury of a student, due to the teacher's desire to "fill up classes," is morally and ethically wrong. Complete honesty with students is not often taught when we are trained to become a Yoga teacher. However, Yoga instructors are often trained to be gentle guides along the path toward total health.
Education about the mental and physical benefits of Yoga has spread like "wild fire" in the past couple of decades; but what about the needs of those who are not so young and limber? In some parts of the world, the number of seniors will outweigh the working population. Italy, the United States, and the rest of Europe, will see senior populations grow rapidly.
If you have ailments, feel nervous, or are attending your first Restorative class, you should consult with your Yoga instructor, before class time. Your Yoga teacher may be able to advise you in regard to techniques that will alleviate stress or pain. You can expect that your Yoga teacher will be compassionate and modifications to postures will be taught.
At home, the walls, and your kitchen counter, can also be used for sturdy props when working on balancing exercises. You should also be aware that some prescriptions will affect your balance. This is one more good reason to talk to your doctor, or pharmacist, about the side effects of any prescription.