Plank Jacks

Sick of doing sit ups and crunches?  

Not only can those exercises be bad on your back, but there are so many more core exercises that will give you better results.  

Plank jacks for example, will challenge you to engage your.  Check out the instructions and video below for details on proper form.  

**Wondering what it means to engage your core?  Get the down low on engaging your core in Jill's blog. 

Instructions

1. Begin in a plank position, with your shoulder over your wrists, your body in one straight line, and your feet together
2. Like the motion of jumping jacks, jump your legs wide and then back together 
3. Jump as quickly as you want, but keep your pelvis steady and don’t let your booty rise toward the ceiling 
4. Complete three to four sets of 12-30 repetitions ** Challenge yourself to do more reps each week!

Looking for more great core exercises?  Check out are full list of ab workouts in the LivRite Fitness Exercise Library.