( ABDOMINALS ) — CORE
Plank Up-Down
AbdominalsBodyweight
How to do it
Set a rigid line from head to heels and perform the plank up-down without letting the hips sag or pike. Brace the core throughout and keep the reps or hold strict.
Log the Plank Up-Down in Reysa
Plan it into your week and watch the trend — free on iPhone.
