I learned this technique when I was backpacking through Vietnam. I noticed that many of the people were squatting rather then sitting. Then while touring the Cu

I learned this technique when I was backpacking through Vietnam. I noticed that many of the people were squatting rather then sitting. Then while touring the Cu Chi tunnels outside of Ho Chi Minh City our guide explained why the tunnels/holes were so small. It's because the soldiers would sit in this squat position for hours. Once you start doing it often you can do it longer and longer. I usually sit like this while I am in between sets at the gym.