Bosu Ab Crunch

Beginner Level of Difficulty

The Bosu ab crunch is a beginner level core exercise that targets the abs. This is a great exercise that is suitable for any fitness level.


Picture of Abdominals


The abdominal muscles (abs) provide movement and support to your core area. The deeper and closer to the spine the particular abdominal muscle is, the more effect over body posture it will have, and this often contributes significantly to a healthy back.

Equipment Used

Picture of Bosu


The BOSU balance trainer stands for "Both Sides Utilized" and is most often used for balance training, various athletic drills and aerobic activities.

Exercise Instructions

bosu ab crunch - step 1

Step 1

Start on top of the Bosu with your lower back placed slightly forward on the Bosu. Make sure that your tailbone keeps contact with the Bosu.

bosu ab crunch - step 2

Step 2

Crunch up into half seated position breathing out and fully contracting your abs at the top of the motion.

bosu ab crunch - step 3

Step 3

Exhale as you open your abs back up onto the Bosu and repeat.