The core consists of the  muscles in the mid-section including the abdominals, upper and lower back, hips, and gluteus maximus. Having a strong core can help reduce the chances of back injuries and pain, improve athletic performance, and ensures better balance and coordination. It also plays a pivotal role in maintaining internal functions.

This core move is one of my new favorites to use in my circuit training. Along with the core, the triceps and chest are fully engaged too.

Plank with Triceps Extension

Hold a dumbbell in each hand and get into plank position (keep hands positioned under shoulders- Figure A).

Keeping hips and shoulders squared, pull right elbow up, keeping the triceps parallel to the floor (Figure B). Extend right arm straight back, hold for one second, and return back to Figure B position. Repeat on the other side to complete one rep. Do 5-10 reps depending on your ability level.

You can view this video to see the complete move.