Next, we recommend a “passive stretch” for pec minor, done while lying on a foam roller. This stretch is the easiest exercise you have ever done! Lie down on a foam roller lengthwise. Position yourself on the roller so that it fully supports your head and sacrum. Relax and let gravity do the work for you in a controlled manner.
If you cannot rest your head on the roller without elevating your chin, use a folded towel or small pillow to elevate it for now. You should not feel awkward or off-balance with your entire spine, feet, hands, and arms supported.
Note that in the second example, the model has his arms hanging in space. They are hanging because of the tightness of his pecs. However, this makes it impossible to relax, and it would be better to support the arms with pillows or a blanket roll until his chest opens further.