You have never run before and have no idea how to start.
People who see you run say that you run different in some way (ie. limp, lean to one side, turn ankles in, etc).
Running itself for you has always produced a variety of running-related problems.
If you look at your shoe wear and shoe insole wear after 300 to 400 miles and find that the wear is very unequal between the two feet.
- Lean forward slightly at the waist. The straighter you run, the more bouncing up and down you do, and the more excessive jarring on your legs and low back. This moves your center of mass slightly forward to the body, much less stress to the skeletal system.
- The length of your stride (measured from right heel contact to left heel contact) should be equal to or less than your height. It takes a friend and some trials to measure this of the sidewalk. Try to time right heel contact at one place and have your friend focus on where you land your left heel. A common error is to "overstride" as you try to run faster. Seventeen different running-related injuries are associated with this problem. As you attempt to run faster, focus more on faster leg speed (stride rate) than straight longer strides. You will have to move your hip muscles faster for sure.
- Your foot should contact the outside of the heel or full-foot first (little toe side). There are some schools of thought that toe running may prove to be better, but I find the foot biomechanics harder to stabilize with toe runners and presently do not recommend it's use. However, if you are a natural toe runner, I would not try to change what comes natural to you.
- Don't slap or pound your feet along the path. Concentrate on slight gait changes that lessen the jarring. This problem may require better shock absorbing shoes or special inserts made to absorb shock.
- Relax your fingers, hands, arms, shoulders, neck, and jaw. Relaxing the upper body promotes total relaxation and running efficiency.
- Carry your arms at a right angle (90 degrees) at the elbows. Make sure both arms are swinging equal (unequal arm swing could indicate a structural problem with your legs). Don't let your arms cross in front of your body or, at least, minimize this action. Running is a straight line progression movement, and side to side motions are counter productive. Relax your wrists, but carry your hands straight with your thumbs up.
- Take the "Talk Test". If you can talk while jogging, you are running at a comfortable speed.