The one thing that hasn’t been mentioned in this thread yet is form & technique. Running efficiently is the key to running faster. If you’re not using your body correctly, you’ll plateau at a much slower pace than your potential and you’ll stand a much higher chance of injury along the way.
We do shoe fittings with a video analysis system. 90% of the people I analyze land with their heel first, and have a cadence of less than 85 spm. A few of them are pretty fast, but none better than 6:00 pace in a 5k. The fast ones run differently.
The reason most people land with their heel is that they are reaching out with their leg to lengthen their stride, thinking this will make them faster. When you do this, your heel hits the ground in front of your knee. If your foot hits in front of you, it pushes backward against you, slowing you down. You only speed up when your foot is behind your center of gravity.
To run more efficiently, think about planting the ball of your foot on the ground first. It’ll feel weird, and your calves will hurt because you’re really asking them to work for the first time in your running. For some people it works better to think about lifting your heels straight up & pointing your toe down. For others, it helps to think about actively pushing off your back foot. Whatever focus area works for you, the ideal is to use your calf muscle to propel yourself forward at the end of the stride and to land mid-foot or ball of foot. Your arches may also hurt, because you’re engaging them in your running also. Your stride will also be shorter and faster. But after you get used to running further forward on your feet, you’ll find that you’re a LOT more efficient, and that it’s hard to run slowly. You’ll also find that you overpronate a LOT less, and can get away with lighter shoes in training and racing.
On our video system, I can see that people who land on the ball of their foot have the first impact with the ground directly below their knee or even behind their knee. That means they are pushing themselves forward the entire time their foot is on the ground. I also see that their foot is on the ground for a lot less time, and they are “in flight” a lot more. These aren’t sprinters, these are fast 10kers and 1/2 marathoners and one sub 2:25 marathoner.
Try this: stand in a place where you have a good 20-30 feet of runway in front of you. Start jogging in place. Notice: you’re on the balls of your feet, and your heels are not touching the ground. You feel light and springy. Now if you lean your shoulders forward, you’ll start running forward. That’s it. That’s efficient running form. To run faster, you focus on lifting your heels higher, which lenghtens your stride. You can do that as a form drill, then build up to short intervals to program the form in your brain. Be sure to allow plenty of recovery – form work is not speedwork.
Try this: take off your shoes and run barefoot, landing on your heels first. Hurts, doesn’t it? That’s because your heels are absorbing a lot of energy slowing you down every time you land. Your body naturally wants to land on the balls of your feet when you’re barefoot. When you put shoes on, you can get away with landing on your heels, and we get lazy.
It’ll take a few weeks to get used to running with different form, after which you can start to build the muscles to sustain that form for longer. You’ll break 20:00 on the 5k easily, and you’ll be less likely to injure yourself along the way.
Lee Silverman
JackRabbit Sports
Brooklyn, NY