Instructions
Grasp a kettlebell with one hand and hold it to the side of your body, standing tall. Take a large step back with one leg and position your back foot so that your heel is up. Lower body by flexing the knee and hip of both legs. Keep lowering until your back knee is almost touching the floor. As you lower thread the kettlebell around your leg. At the bottom of the split squat both your legs should be in an approximate 90 degree angle. Return to original standing position by forcibly pushing the front foot on the ground and extending the knee and hip of that leg. As you return, bring the kettlebell back to the starting position. Repeat for the required repetitions on one leg, then repeat on the other side.
Tips
To modify this exercise slightly, change the direction that you thread the kettlebell through. This change in direction will challenge your core a little more.