Stretches for Older Men (and Woman) to Decompress the Back (neck-sacrum) Groin, Hips and Knees. Open the hinges Backward….eliminates the upper back hump, relieves the Lumbar. Increases mobility of the Pelvic & Groin (Qua/Chinese).
My saying is: "You don't have to stretch all your joints, just the ones you'd like to keep"
I recommend The 10 Exercises. There's a link to me doing/teaching the 10 Exercises on this blog. Just look at the Labels under 10 Exercises. I have several versions of these that I do regularly.