Mobility Warm-up   10 seconds Butt Kicks (50% Effort) 10 seconds High Knees (50% Effort) 10 seconds Butt Kicks (75% Effort) 10 seconds High Knees (75% Effort) 10 seconds Butt Kicks (100% Effort) 10 seconds High Knees (100% Effort) Skills / Strength   Box Jump Efficiency Tips!!! Efficiency Tips Also keep in mind why you are doing this.  If you want to be in CrossFit competitions, you…