This dynamic plank variation is redefining how Americans build core strength, balance, and upper-body endurance—without ...

Psst: it's not another plank.

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These are the essential settings tweaks, lesser-known features, and apps you'll love for workouts.

Fitbit smartwatches and trackers are little powerhouses for those looking to improve their health and fitness levels. These devices track several activities, from running to swimming (if your Fitbit ...