See the lessons on January 3 and 9 to see the psoas stretches!
Below is a video of resident expert, Bradley Martin, showing a hamstring stretch. Notice the nuance of how he performs the stretch: the way the client is positioned, his own position and body mechanics, and all the subtle adjustments he does to get the proper stretch.
Here, Desmond and his friends Tony and Rene show how precision of technique is very important in jiujitsu.