Jumping Jacks (How To, Muscles Worked, Benefits)
Jumping Jacks are one of the most tried and true warm-up exercises that there is. Personally, they take me back to junior high gym class when we started every day (and I mean every day) with Jumping Jacks, Squats, Mountain Climbers and Sit-Ups. There is a reason why Jumping Jacks have been so popular over…