Team,
I can do these with good form and rock as one solid unit, but I cannot rock as fast as the follow along videos. Peversely I assume this means I am doing more work, as I have to hold the position for longer to complete the reps. But how do you speed up the rocking? (It's not an excuse but I am 6 foot 4, 195cm tall, is it just a case of a longer slower lever?)
Even with posterior pelvic tilt my lumbar spine still has some arch in it, so when I rock "forward" I am rocking on my butt then as I rock "backward" my mid back touches the ground and I begin the cycle again... I just don't know how to do it any faster....
Any thoughts?