Demonstrated here is a reverse Nordic curl. I am using a smaller monster band to maintain as much core tension as possible. This drill is increasing lower ankle mobility, spinal extension, and lengthens the quads and anterior hip eccentrically (way down) while concentrically (on the way up) forces the glutes and hamstrings to actively raise back up to the starting position. I perform 2 sets of 6-8 before leg day and another 2 sets later in the week. Try not to sit on your butt, stay tall, and start slow!