Editing Running (section)

===Upright posture and slight forward lean===
Leaning forward places a runner's center of mass on the front part of the foot, which avoids landing on the heel and facilitates the use of the spring mechanism of the foot. Additionally, it facilitates avoiding the braking effect that occurs when a runner lands their foot in front of the center of mass. Although maintaining an upright posture is crucial, runners should also keep their frame relaxed and engage their core to keep their posture stable. This helps prevent injury as long as the body is neither rigid nor tense. The most common running mistakes are tilting the chin up and scrunching shoulders.<ref name="Dr. Michael Yessis 2000">{{cite book |author= Michael Yessis |title= Explosive Running |publisher= McGraw-Hill Companies, Inc. |edition= 1st |year= 2000 |isbn= 978-0-8092-9899-0 |url-access= registration |url=https://archive.org/details/explosiverunning0000yess }}</ref>