Kettlebell Front Swings
When doing a kettlebell swing, try not to turn it into a squatting motion with your legs. It should be a hinge through the hips. Your knees will bend naturally but this doesn't mean to squat down.
When you thrust the kettlebell up, stopping at shoulder height is best to avoid going to far overhead, hyperextending through the spine and possibly hurting yourself. When the kettlebell reaches shoulder height, you should be standing upright and not leaning backwards too much with your spine and shoulders.
Focus on a nice explosion through the hips, almost similar to when you do a box jump. This exercise is a nice way to work on that explosive power without the impact of jumping. Plus, when done correctly, it helps to develop proper movement timing through the core, lower back and hips.