A side-by-side comparison of the optimal maximal speed running gait of the Au. afarensis model with modern human-like tricep surae muscle architecture. Credit: Bates, Karl T. et al., 2025 Lucy is one ...

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Ask a group of runners whether they’d rather run on a treadmill or outside, and you’ll probably get some very strong opinions. Some can’t stand the boredom of indoor miles, while others love the ...

You hop on the treadmill, set your pace and easily knock out a couple of kilometers (about 1.2 miles). Then, a few days later ...

Although treadmills do let you vary your running speed, you have to repeatedly reach down and hit the controls in order to do so. The Kickr Run offers a more natural hands-free alternative, in that it ...

Beth Skwarecki is Lifehacker’s Senior Health Editor, and holds certifications as a personal trainer and weightlifting coach. She has been writing about health for over 10 years. Is the treadmill ...

Vincent Mauri’s 26.39-mile Strava upload was faster than most people’s race-day dream finish.

With shorter days, colder temps, and the possibility of black ice lurking on the pavement, moving your run indoors might be looking a lot more appealing. But it can also bring up the question: Is ...