I found this a few years back and thought I would share.
Every runner should aim for
the best running form possible.
After all, you want to avoid the frustration of injuries. However,
there is a lot of disagreement among runners about which part of the foot
should hit the ground first.
If you take the
time to watch other runners, you will see that each one has his or her own
style of running. Some will lift their knees high, others will stay low to the
ground. Some will run upright, others will lean forward. And some will land on
their toes, some on their midfoot, and others on their heel.
A good exercise for all runners is to find out which part of
your foot lands first. Either run on a treadmill next to a mirror, or have
someone videotape you running. Then analyze what you are doing.
Why you shouldn’t heel strike
There are plenty
of runners who are heel strikers. However, when you land heel first, your leg
is extended straight in front of you, well in front of your hips. This causes
an enormous impact to travel up your leg into your knee, hip, and back. Your heel is not an effective shock absorber, so the joints in your foot, ankle,
knee, hips and back take the brunt of the force.
When you land on
your heel, your foot has to roll forward. As it rolls forward, it also rolls
inward, causing you to pronate. Then you have to push off that foot in order to
continue moving forward. If you suffer from chronic shin splints,
the cause may be the pronation from heel striking. The muscles in your shins have to work
hard to keep the front part of your foot from slapping the ground, and to keep
your foot from pronating too much.
Over striding
Your focus should be on a quick and light gliding
motion
Another issue that arises when you land on your heel is
overstriding. Taking long strides does not make you faster or more efficient.
In fact, with each footfall, you are making your run more difficult by wasting
a lot of energy. This is because each step stops you a little before you continue
forward. Many liken the feeling to “putting on the brakes” each time you land.
Your focus should be on a quick and light gliding motion, as if your legs are
cycling like a smooth machine underneath your upper body.
How to run properly?
The best foot plant is when your foot lands right underneath
your hips, either with a flat foot or on the ball of your foot. This will help
you keep your body upright with a slight forward lean from your ankles (not
from your hips).
You want
your foot to be moving backward to match the speed of the ground, instead of
stretching in front of you. Your knees should be pulling you forward, and not bouncing you
up and down. Driving your knees forward will keep you low to the ground, and
help you conserve energy. Also be aware of your arms: they should be pushing
backward. If you drive your arms forward too much, it will contribute to
overstriding as well.
The easiest
method to help you change your running style from a heel striker to a midfoot
or toe striker. Simply run on a treadmill at a 5%
incline. You won’t
be able to land heel first, and if you usually have pain from running, you may
find it has disappeared.
The key to efficient, injury-free running is proper form. If you
are a heel striker and run fast without injury, you may not need to change your
form. But if you are a heel striker who wants to improve your speed and cut
down on the aches and pains, try landing a different way. It may make a lot of
difference.
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