Challenge your shoulders, arms and abs in this HIIT-based, all-levels workout for women over 40.

Alternating between a shoulder/arm exercise and a higher intensity cardio move to target the abs, you will love the flow of this routine.

High and low impact options are shown.

And, welcome to Day 5 of the 25 in 25 Challenge 😎

Tools: a pair of light & mod dumbbells, a chair if you’re a beginner, and grab your BOSU ball if you own one