Fit Girl Challenge! Try 3 sets! 10x reps each. 30-60 second breaks between sets. Details/Plank Variations: 1.) Side plank 2.) Oblique crunch - knee to elbow 3.) Plank Before you start adding variations to your plank make sure your form is strong: ✔️start on your knees of you need too ✔️brace your belly button to your spine ✔️tuck your tail under so you spine is neutral ✔️push away through the heals and keep legs and arms strong! by signatureworkouts | Fit Girls Guide