Core Obliteration - 5 Deep Core Drills
Description: Crunches train about 20% of your core. Here's the other 80%. 💣
Your "abs" aren't one muscle - three tendon bands split the rectus into segments your nervous system can fire separately, your obliques spiral around the trunk in opposing directions, an ... Read more
Your "abs" aren't one muscle - three tendon bands split the rectus into segments your nervous system can fire separately, your obliques spiral around the trunk in opposing directions, an ... Read more