In simpler times, maintaining good health was a matter of joining a gym or lacing up running shoes for a loop in the park. At most, you'd buy a watch with a digital display so you could time your laps.

These days, a range of gadgets can help boost your workouts. And I'm not talking about iPods that distract you as you lift weights or sprint to nowhere on a treadmill. Technology can now track your exercise progress, count calories and more.

Fitness enthusiasts may appreciate some of these gift ideas.

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Garmin Forerunner 310XT ($350; with heart rate monitor, $400)

Since 2003, I've been using GPS devices to keep track of how far I've run and how fast I'm going. Some even try to keep me on pace, beeping endlessly when I'm short of my goal. A new Garmin model offers longer battery life and improvements for triathletes.

What's new: An update to the Forerunner 305, the 310XT is waterproof to about 165 feet. But GPS signals don't travel well in water, so don't expect good distance readings while swimming - and forget scuba diving.

Source: San Diego Union Tribune