Creepy Crawler Plank (aka Spider-Man Plank)
- Start in high plank and bring your left knee to your elbow.
- Place your left foot back on the ground and repeat on your right side.
- Alternate sides, bringing your right knee into your elbow; place your right foot back on the ground. This completes one rep.
- Complete 10 reps.
For a variation that hits your lower abs, drive your knee across your chest to the opposite elbow. Repeat on the other side for one rep. Repeat for 10 reps.