10-Minute CrossFit Workouts
10-Minute CrossFit Workouts to Build Lean Muscle — 13 Workouts All in 1 Place
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Be warned: even though this kettlebell workout is only 10 minutes long, there's no rest, and your legs, butt, and arms will be smoked by the end.
Equipment needed: one light to medium kettlebell (five to 35 pounds)