I do not do much stretching. I find gradual warm up and cool down works fine. I used to stretch on a daily basis, but, I found some stretches caused some aches, I likely was not doing them proper. I know whenever I have done PT for injury or rehab, many times, I have a tendency to get into bad form with the exercises, more so with stretches. The therapists notice it and make corrections. I really think yoga would be a good practice to take up, but, same thing, need to have a knowledgeable person look at, and correct form as needed. I am having an increase in spinal issues, especially the cervical area, my on bike time and miles has been limited, and I have had to raise the handlebars significantly, and shorten the reach a bit. It seems to me that yoga would be beneficial for both range of motion and strength.