Palm stretch in 4 feet dynamic

Tutorial

1. 1
   Starting position: four-footed stance, fingertips pointing towards the knees. Arms stretched
2. 2
   Execution: Exhale as you reach backwards, then bend your elbows and reach towards your thighs/knees.
3. 3
   The thumb may leave the training mat, the other fingertips must remain in contact with the mat.
4. 4
   Inhale and return to start.