Take one hand and place your foot on it. Press hard till you feel the pulse in the hand and until you feel the start of an uncomfortable feeling. Release and note how it feels when the blood rushes back to the pressed limb. Repeat this drill for the elbow, foot and so on and after you went over the body and felt the recuperation repeat this drill and now work on relaxing the pressed part of you and trying to breath through it in order to keep it alive and mobile. (no new set of lungs is supposed to appear but you work to be aware of the skin breathing inward and outward and working to deepen this feeling to the bones and thus enhancing awareness and healing in that part. Paying attention to the temperature and inner pressure of the vassals is also very helpful in speeding up your recovery and you general health.)
Other things you can do is to move the rest of you which is not under pressure (you can simply have a friend stand on you when you are prone) in a movement which helps the part under pressure breath and relax and speed up your own breathing in order to clean out building tension.
We cut ourselves off every day when we hold our breath or freeze a part of us in a position such as holding a phone over a while using the head and shoulder press or keeping the toes tucked to keep the sandals from falling off. This drill brings this to the surface so we can change and clean it out and move freely and naturally.