12 minute plank workout using a stability ball.
12 minute stability ball plank workoutGood Monday morning purely fit friends!

We had a fantastic weekend! Saturday was spent playing with our niece celebrating her birthday. Then Sunday was all about baby M and Lori!! We will share a recap of her baby shower later, but it was a lot of fun!

Lori and I have been proud of ourselves that the past 3 mornings we’ve worked out instead of sleeping in.  Each morning has been a different 12 minute bodyweight workout, and yep planking is in there too! And today we are sharing a new plank workout.

12 minute interval plank workout using a stability ball.

This workout is made up of some fun exercises that target the whole core.

single leg ab rollin on stabiltiy ball

The single leg ab roll in on the stability ball is a new move we practice from time to time. It’s really challenging and will engage your full body. Your abs will be on fire!

Purely training #68 is a 3 part plank workout.

Equipment:  stability ball

Style of workout:  12 minute interval plank workout

Workout focus: core and arms

For each part, set your Gymboss Interval Timer to 8 rounds of 10 sec rest and 20 sec work.

Interval plank home workout that will build strength in the mid section.

Your shoulders and legs will get a great workout too! One thing we love about planks –> they work the full body!

Are you ready to plank it out?

Lori was in her 2nd trimester when she did this workout. **Update on pregnancy safe – I will only recommend this workout in your 1st trimester to help protect your core even more from getting diastasis recti post partum.


If you are new to planks and working out please take this workout slow and omit moves that feel uncomfortable.

Here is the stability ball plank workout breakdown.

Don’t forget to PIN this workout to try this week and come back to let us know how you liked it! Use hashtags #purelytwins #ptsisters so we can see you sweating it out 🙂

stability ball plank workout PT 68 for a lean mid section

stability ball plank workout PT 68 (click to download your free printable)

We suggest for different fitness levels:

B-fits (beginner peeps) – Take breaks when needed. Do the modifications mentioned in the video. Keep knees bent.

A-fits (advanced peeps) – Limit your breaks.

FIT moms (pregnancy recommendations) – Do the modifications mentioned in the video.  Get yourself warmed up and then come work out with us. Safe for 1st trimester.

A  plank workout to maintain a strong core.

*disclaimer: make sure to consult with your doctor before trying anything new with your workout routine.

What is your workout for today?

How was your weekend?

Did you plank today? What is your favorite ab workout?

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plank outfits

Wearing: Crops from Raw Threads. Blue sports bras from Handful bras.


Lori and Michelle

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17 thoughts on “12 minute plank workout using a stability ball

  1. This is interesting! I’ve never done moves like that on a stability ball. Can’t wait to hear about the baby shower!! Glad you had a great weekend

    Posted on June 30, 2014 at 11:45 am
  2. I love me some plank workouts!! love it!

    Posted on June 30, 2014 at 1:22 pm
    1. yay for planks 🙂

      Posted on June 30, 2014 at 1:51 pm
  3. Another great workout!! Thanks ladies! Can’t wait to try it out!

    Posted on June 30, 2014 at 3:24 pm
    1. thanks Sara!

      Posted on July 1, 2014 at 6:54 am
  4. Thank you SO much for this workout! I was looking for something that combined ab work and my stability ball AND would be safe for my 27-week pregnant belly. This is perfect!

    Posted on June 30, 2014 at 8:08 pm
    1. hope you like it Pua 🙂

      Posted on July 1, 2014 at 6:55 am
  5. I love planks! My favorite short-in-a-hurry workout at home. I have a stability ball, and never use it. I am doing this workout when I need to take a break later this morning. Thanks for the great ideas!

    Posted on June 30, 2014 at 9:04 pm
    1. yay for more plank love!!

      Posted on July 1, 2014 at 6:55 am
  6. I love planks, I love stability balls, I love a challenge! Thanks ladies

    Posted on July 1, 2014 at 6:07 pm
    1. glad you liked it Mary! 🙂

      Posted on July 1, 2014 at 8:44 pm
  7. i did this workout last night and loved it. I’m learning to enjoy the stability ball more. I loved those side plank ball squeezes!

    Posted on August 20, 2014 at 1:01 pm
  8. Hi, please tell me: 10 secs are on or rest? as 20 secs?

    Posted on September 30, 2014 at 5:04 pm
    1. 10 sec rest and 20 sec work!

      Posted on September 30, 2014 at 7:45 pm