signals travel (the speed of light – it does 10K in 1/30000th of a second) the GPS receiver can work out how far it is from each satellite. The receiver then plugs those numbers into some very complicated calculations to work out its position on the Earth
. In motion-control and stability shoes, the heel counter commonly reaches further down the inside of the shoe to help control overpronation. Impact ForceWhen your foot hits the ground, the force that travels through the leg is about 2.5 times your body weight
as much as they love running. Don’t forget to recycle your old trainers too!Good for: eco-warriors iPod Touch with Nike+ sensor, (iPod Touch £169.99, Nike+ iPod Sport kit £10.99) www.nike.com/nikestore The iPod Touch is one of the flashiest
own plan on the calendar which will then synchronise with the watch on connection. These plans can be as in-depth or vague as you like (for example, run at 10mm pace for one mile, then 10 intervals of 400m at 8mm pace followed by two minutes at 12mm
