Hey,

I had seen a guy mentioning a site

I also went there and the site has got some very nice articles. I really liked the site. I think all the guys who want to quit smoking should have peep in there. It has got lots of articles on quit smoking and health exercise.

It has got a lot of articles on health exercise which will help you keep active and loose weight.

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Try it out

your low center gravity is very good. A quick tip i learned from a lacrosse combine was tuck in the front part of your shirt 9 and only the front) into your shorts( im serious i shaved .2 off my time with just that) and another good step is give a big exhale on the first step. also make sure you get low on the start and get a good first step. Have a good and low posture. breathe. good luck.

The plyometrics answer is probably the best. If you have access to an older more traditional weight room, then any lift that works on calf strength is a good bet as well. If you have a traditional toe raise machine its great, but if not you can make due by using a hip sled and only lifting by flexing your foot.

Have you tried using a training aid, such as the Wilson Running Speed Chute? This is a parachute type training aid that you wear as you run. It helps to increase your running speed.