Sprint landing on the ground with the top part of your feet, 'close to the toes' Plantar section, NOT YOU heels. Keep your upper body, 'torso", erect all the time and breath out strongly while propelling yourself forward.
Both are Internationally recognized respectable organizations. Both are worldwide NCCA- accredited. It is a matter of personal choice. You can go with just one specific organization or diversify and get other specialized certifications from either one. Both certification programs are GREAT!
As you exercise muscle fibers develop knots that adhere to the skin tissue layers. Myofascial release helps to unknot tightness in the muscle fibers. It helps you to keep a better level of flexibility and diminishes muscle fatigue and soreness.