Good Form Running
Step 1: Posture
Proper posture is the critical first step toward improved running form – one that sets the stage for more-efficient movement. By keeping your upper body aligned, steady and relaxed, energy is conserved and refocused to where you need it in the lower half.
How to Find it
Stand with knees slightly bent.
Reach your arms toward the sky, elongating your body.
Bring your arms down while keeping everything else in place.
As you run, keep your head up and gaze forward. Your arms should swing easily from the shoulders with elbows at about 90 degrees.