I joined an online fitness challenge this month, for example, so that I'd report my workouts to the forum.

比如，我这个月加入一在线健身挑战，这样我就得向论坛反馈自己的练习。

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Turning to the problems, there are a number of articles connecting online activity to falling levels of physical fitness, but it's too easy to blame the Internet for our social problems.

说到这些问题，有很多文章都把网上活动和体质下降联系起来，但把社会问题怪到互联网头上未免也太过轻率。

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There are tons of fitness resources available on the Web, from healthy food coupons to free, online calorie counters and exercise routines.

在网上有大量的实用的健身资源，有免费的健康餐券，在线卡路里测量计以及锻炼方式。

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They have an online fitness tool that shows you how to perform each exercise.

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Once at Garmin Connect (GarminConnect.com), runners can quickly and easily log their runs, track their totals, set goals, share workouts with friends and family and participate in an online fitness community of more than 80 million activities around the world.

ENGADGET: Garmin Forerunner 10 is a GPS watch designed for outdoor fitness, we go hands-on

Balance is an online health and fitness magazine that just celebrated its second anniversary, claims to be the first of its type on the Net.

CNN: Site Seer: Get fit on the Net