Spiderman Mountain Climbers
To do Spiderman Mountain Climbers, start in the high plank position from your hands and feet. Then, keeping your core engaged, step one foot up and outside your hand into a nice low spiderman or runner’s lunge. Try not to let your butt go way up in the air as you step your foot outside.
Beginners will then quickly step back into plank and then step the other foot forward into a lunge on the other side. They will move as quickly as possible, stepping their foot all the way outside their hand.
More advanced exercisers will jump from lunge to lunge. The faster you jump between lunges and the less you pause on each side, the harder the move will be. Still try to keep your butt down and make sure to land in a lunge with your foot outside your hand each time.