An S-posture at address can lead to chronic back discomfort. One cause may be tight hip flexor muscles. Here's an exercise to help alleviate/prevent S-posture.
Video duration: 129 seconds
Global video hits: 3571
This video shows how I crawl. The hip flexors are made up 3 muscles groups. This muscle is used to bring my leg towards my chest. The forward motion of my leg in this video is initiated completely above my waist.
The principles of crawling translate directly to walking. I couldn't learn to walk without first learning to crawl.
Perform bo staff stretches for the hip flexors to increase the attack power in different stances. Exercise the hip flexors with tips from a martial arts instructor in this free video on the bo staff.
![Josh\](http://img.youtube.com/vi/3Us81-m8tzs/2.jpg "Josh\")
