Spider-Man Plank: 60 Seconds
"This move is so great because it stabilizes your entire core holding the standing plank position, where your hands are under your shoulders like the push-up position," said Erica. "Then you bring your right knee toward the right elbow in a Spider-Man-looking position to engage the oblique." Alternate sides to hit both sides of the obliques.
- In plank, open your knee to the side and bring your knee to your elbow and alternate sides. To modify, just lift leg open to the side.
- Repeat for 60 seconds.