Stretching induces hypoxia

http://www.ncbi.nlm.nih.gov/pubmed/20204809

This study offers some prediction that strecthing actually induces hypoxia, contrary to what I believed.

If this really is the case then actually I would expect stretching to be somewhat beneficial before exercise and deterimental after exercise. After exercise, we what to give muscles as much oxygen as possible to maximise thier growth.