Running Form Mistakes
Many of the fastest runners are not necessarily naturally gifted, nor are they necessarily tall or long-limbed. Instead, the best runners are those with economical strides who run with purpose, power, and determination. Not only can good form make the difference between running pain-free and running with pain, but if you are a racer, good form can also shave minutes off your running time.
Improving one's speed poses the greatest challenge for a runner. Many runners, both beginners and intermediates, lean too far forward and run on their toes in an attempt to run faster. Running on your toes, or forefoot, is a sprinting technique only. If you try running a 5K or 10K race like this, you will probably end up in pain and maybe even injured.
Speed and efficiency can also be negatively affected by bouncing. Bouncing up and down while you run slows you down and is extremely inefficient. Bouncers tend to lope and overstride, which creates greater impact on your legs, especially on your knees.
There is a variety of other subtle form flaws that plague runners. Many of these problems are not readily recognizable. However, once identified, many flaws in technique can be easily corrected. Although you don't need to have perfect form, even a minor adjustment or modification can make a tremendous difference in your running efficiency and comfort level. Additionally, tweaking your form a bit can reduce your chances of incurring an injury.