Back of hand stretch 4 feet dynamic

Tutorial

1. 1
   Starting position: four-footed stance, place the backs of your hands on the floor with your fingertips pointing towards your knees.
2. 2
   Arms are stretched, the bend of the elbow points forward.
3. 3
   Execution: Reach backwards on an exhalation (small movement), return to the start on an inhalation.