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Miniaturize GPS technology, strap it to your wrist and apply it to exercise and you have the GPS running watch. Technology has made great strides over the past few years and the Global Positioning System, or GPS, is an ideal example. GPS is a system of geosynchronous satellites that are used to triangulate your location to inside about 3 meters of your position.

Since a GPS runner watch combines GPS tracking ability with the information collection facility of a computer, it can pull together and store information on lots of aspects of your work out. Some of the numbers a GPS running watch can collect include speed, pace, distance, and course data.

The information can be used as you run to help pace yourself. Also, it can be downloaded to your personal computer at the finish of your run to analyze your growth. The most flexible GPS running watches include multi-session features which allow you to compare numerous runs.

A GPS running watch looks just like a regular digital watch, except a little larger, since it has a GPS transmitter built inside. GPS runner watches can be programmed for a number of different workout types plus interval workouts, simple time or distance workouts, calorie burn workouts, and heart rate workouts.

An interval workout is occasionally called a step workout. It consists of a phase of intense exercise followed by a period of rest. For instance, you may run hard for 3 minutes and then recover by walking for one minute.

A distance workout would just measure the distance you’ve run and alert you as soon as you reached your goal. The timed workout function is just like a countdown clock. It alerts you as soon as a certain sum of time has gone by. A heart rate workout helps you maintain your heart rate in a certain range and alerts you once your heart rate rises beyond a certain upper limit or goes below a specific lower target. Lastly, for a calorie burn workout the GPS runner watch would alert you as soon as you have burned the number of calories you set as a goal.

Several of the optional functions of GPS running watches include warm-up and cool-down options, an altimeter that tracks inclines and declines and thermometers that can store data about the weather all through your run. Several GPS runner watches can even connect with foot pods you place in your shoes that measure your step length and pace. They can interface with a heart monitor that stores your pulse or heart rate so you regulate your effort in order to keep within your preferred training range. Several can download digital maps and mark the track you have gone in order to help one keep from getting astray.

Many GPS running watches can be converted from wrist-top units to handlebar-mounted units for use with a bike. This option is especially handy if you compete in biathlon or triathlon races. Most GPS running watches have bike speed and cadence sensors. You can also locate waterproof GPS runner watches that operate as many as 50 meters in depth.

Jason Mitager writes articles about garmin gps running watch and best gps running watch 2009.

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