Danny's Blog

July 25, 2008

Midfoot strike, Forefoot strike or Heel strike…which one is best?

There seems to be much debate in the running community today on what is the best footstrike for running. Runners of all levels divide themselves into three basic camps: the midfoot strikers, the forefoot strikers and the heel strikers. So, here is my attempt to put forward my best understanding of the three basic types of foot strike and what each one does for a runner.

The Midfoot Strike
The midfoot strike is characterized as having your heel and the ball of your foot touching the ground simultaneously with each foot strike. You can see this very clearly when you watch young children run. They always land with their whole foot on the ground. I would say that at least 95% of all people run this way as kids.

In the ChiRunning technique, we promote the midfoot strike because it is, for most runners, the most injury-preventive way to run. Our emphasis is on preventing the lower legs (including the knees) from over-working, because this area of the body is where, conservatively speaking, 90% of all running injuries occur. Plantar fasciitis, achilles tendonitis, shin splints, calf pulls, knee pain, IT band problems, over-pronation, bunions, metatarsal and tibial stress fractures, and hammer toes lead the list of the most common running injuries. This list is immense compared to everything that can go wrong above the knees.

The propulsion in ChiRunning comes from allowing your body to fall forward with the pull of gravity, not from pushing yourself forward with your feet and legs. For this reason it is more energy-efficient because your legs are not required for propulsion. When your feet come down onto the ground, they land either under or slightly behind your center of mass, in a midfoot strike. The only work required of your legs is to provide momentary support for your body between strides. Landing on your midfoot, in most cases, either reduces or eliminates the work done by A.) the lower leg muscles…especially the shins and calves, and B.) the two tendons that are most commonly injured… the plantar tendon and the achilles tendon.

The ChiRunning technique is primarily focused on energy efficiency and injury-prevention with speed being a secondary focus.

The Forefoot Strike
The forefoot is basically the part of the foot between the forward-most part of the arch and the end of the toes… generally speaking, the balls of the feet. If your heels don’t touch the ground when you run, you’re a forefoot striker.

Sprinters, middle-distance runners, and some triathletes tend to prefer running on the forefoot because of the extra speed obtained by “paw-back” and “toeing off.” This way of running is great if you want lots of speed, but it puts the responsibility for most of the body’s propulsion squarely onto the legs…especially the lower legs. Some of the faster elite middle-distance runners (i.e. Kenyans, Moroccans, Ethiopians, Mexicans) run with a forward lean added in combination with a forefoot strike. This takes some but not all of the burden off the lower legs.

Because forefoot running is primarily used for running at faster speeds, energy efficiency tends to take a distant back seat. As far as being injury-preventive, forefoot striking helps prevent knee injuries because it lowers the impact to the knees. This is a good thing. But the problem with it is that running on the balls of your feet increases the workload on your calves, shins, achilles tendons, and plantar tendons, so you risk either overworking a muscle or pulling a tendon if you go too far or too fast while running on your forefeet.

The Heel Strike
Heel striking is when your heel strikes the ground in front of your body. At least 75% of all runners run with a heel strike. The interesting thing about this fact is that, although it is by far the most common of all the footstrike patterns, it is not done by choice, but by default. The vast majority of all runners are not elite runners or competitors, they’re just regular folks like you and me, who like to run and like to stay fit.

Most recreational runners tend to run with their body in an upright position… with no lean at all. This forces them to have to reach forward with their legs when they run…and when you run upright and reach with your legs, your feet will always land in front of your body and your heels will come down first. When you run this way, you’re basically putting on the brakes with each stride, which sends a lot of impact to your lower legs and knees. For this reason, many heel strikers complain of knee pain at some point in their running career. This is the group that keeps orthopedists and physical therapists in business.

But, just because you might be a heel striker, it doesn’t mean you’re doomed to be a heel striker for the rest of your life. Work on improving your running technique. If you can learn to run safely and efficiently, you’ll be eliminating the causes of running injuries and you won’t have to worry about ending up in a doctor’s office getting fixed.

The midfoot strike works for most runners…the forefoot strike works for some runners…but, the heel strike doesn’t seem to work well for anybody. Try all three and see which one works the best for you.

With the ChiRunning book, DVD or audio CD you can easily learn the midfoot strike. We offer you an alternative way to approach your running so that you can learn the midfoot strike and spend many more years enjoying one of the world’s best and most natural sports.

Happy trails,

Danny

February 15, 2008

ChiRunning for Middle and Long Distance Runners

I get lots of questions about whether or not ChiRunning can help sprinters and middle distance runners. I’ve posted a blog on sprinting which I’m sure I’ll add to over time. But, if you’re a competitive runner in the 200m – 5K range, ChiRunning can definitely help your running too. One thing it will take is constant practice. In the ChiRunning book, the training paradigm that I promote is F.D.S. ….practice Form, then train to hold your form for longer Distance, Speed. That’s the order in which the highest level of success is guaranteed. Work on your form first. Then, as you get better at the form, you learn to hold the form at greater distances (or for more time), once your body is acclimated to running with a new technique and has the core-strength conditioning to withstand greater distances, then and only then should you work on adding in speed.

The longer the distance you run, the more amount of time you’ll need to spend landing on your midfoot instead of your forefoot (as sprinters do). If you spend too much time up on your toes, the small muscles of your legs will become overworked and/or over trained and you could end up being a candidate for some form of overuse injury of the lower leg (shin splints, calf pulls, achilles tendonitis, plantar fasciitis, and even metatarsal fractures).

This runs parallel to much of what Arthur Lydiard promoted with his runners…a very deep base of conditioning before adding in speed. When learning the ChiRunning technique, if you add speed in too early on, you risk defaulting back into power running and/or overusing your legs. This is a technique which uses less muscle because you rely much more on your forward lean to reduce your leg muscle usage. Being able to hold a forward lean over a period of time takes additional strengthening of the core muscles of the body. The more you train yourself to rely on your core muscles to run with, the less reliance you’ll have on the small peripheral muscles of the lower legs.

At the same time, looseness in the hips, spine and pelvis are needed in order to get to faster speeds. The idea is to take most of the work off the legs by running with your center of mass, over or slightly ahead of your center of gravity (your point of contact with the ground), while training your body to let go of any extraneous tension which inhibits fluidity in your motion.

For this reason, relaxation is a key component of the ChiRunning technique. You don’t get faster by being tense, or by using more muscle. The Kenyans are not fast because they have the strongest legs. They are fast because they have a great training base, AND they are the most relaxed and most efficient runners in the world. They have relatively low VO2 max numbers compared to athletes they’re competing against and beating. They are also extremely light on their feet and very loose in their pelvic area…something which their competitors have much to learn about.

I’ll be talking about advanced techniques every now and then in this blog. I have been reluctant to talk about speed, because ChiRunning is more about the process than the result and many competitive runners tend to be result oriented. Needless to say, if you work on your technique and then holding your technique for longer distances, the only thing you’ll need to add, in order to pick up speed, is more lean and more relaxation. Speed is a byproduct of having good technique, a relaxed body, and the ability to hold more of a lean (Core muscle strength) for a longer period of time.

Happy trails,
Danny



Powered by WordPress