And now for some extreme flexibility. Check out Jacek Malinowski from Poland. WTF?! And here is his active flexibility put to use in some kicks.
Search Results for: label/flexibility
Not just for kicks. Here is a video showing you how to use a simple homemade stretching tool to increase your flexibility and strengthen your hamstrings, psoas and glutes at end ranges. Material: stick or PVC pipe PVC pipe T connector rubber band