Fitness Calculator

If you’re hungry, you eat; if you’re thirsty, you drink water; if you feel full, you stop eating and drinking. Great if you have a … Read more

Remember those days when your parents pulled out the tape measure and marked your height against the kitchen wall? That felt like some sort of … Read more

If your teen athlete appears to be getting more clumsy overnight, don’t assume they’re getting less skilled; they probably aren’t; it’s just that they’ve grown … Read more

At four minutes into a time trial, have you ever felt like your legs were like lead? That is when biology meets physics as explained … Read more

Your watch is a tachometer, not a speedometer, meaning most of us treat it as if it’s telling us how fast we are running, whereas … Read more

Power meters are not magic wands; they’re tools. Raw watts fluctuates based off cadence, wind, and terrain, which means what you see on screen doesn’t … Read more

Until you take out what throws things off kilter, pacing is subjective. Maybe you can run a seven-minute mile on a flat, windless track and … Read more

How fast should you run your next hard workout? You’ve got a six-week-old race time and aren’t sure how to translate that into an appropriate … Read more

We all know the myth: If you want to run efficiently, you must hit precisely one-hundred-and-eighty steps per minute. Over time, this magic number became … Read more