If you've done CrossFit, you know Fran all too well.
are known to be basic, yet fast-paced, intense, and brutal — after all, that's why people are drawn to them in the first place. Pushing yourself to these levels pump up your adrenaline, making you stronger both mentally and physically. While there are many types of workouts well-known by the CrossFit community , one of the most popular ones is the 21-15-9 workout, developed by CrossFit's founder Greg Glassman. Here's how it works.
This type of rep scheme workout is short, taking anywhere from five to 15 minutes, depending on the number of exercises included in the workout. The goal of a 21-15-9 workout is to keep moving through the reps with no rest, trying to complete the workout as fast as you can, explains Jenny. Athletes will often compare the times they get with fellow members at their gym . Or they'll get competitive with themselves and aim to perform the workout faster the next time.
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