( ABDOMINALS ) — CORE
Single Arm Star Crunch
AbdominalsDumbbell
How to do it
Lie spread out like a star with a light dumbbell in one hand. Crunch up and lift one leg, bringing the dumbbell up to meet it, then lower back to the star. Finish one side, then switch.
Log the Single Arm Star Crunch in Reysa
Plan it into your week and watch the trend — free on iPhone.