This quote is from that coach Sommer thread, intresting.
Is Spinal Mobility Important?
by Coach Sommer on Tue Jan 20, 2009 4:59 pm
This spinal mobility is very important. A failure to develop it in combination with an over-reliance of "straight" back work, will eventually lead to muscle imbalances where certain vertebrae will lose their mobility, their associated support ligaments will somewhat atrophy and the vertebrae above and below the affected area(s) will strain themselves attempting to compensate. This will result in some rather severe back pain that will not be alleviated until the root problem (a lack of vertebral mobility) causing the issue is resolved.
This issue seems to be far more common in strength athletes who discipline requires an over-emphasis on a straight back; i.e. power lifters, Olympic Lifters, Kettlebell men and ring strength specialists amongst others. Jefferson curls, weighted pike stretches, curling vertical situps and curling reverse situps are all fairly straight forward methods to deal with this situation. Neither the intensity, training loads or volume not need to be high; correctly performing the movements themselves with moderate intensity and volume (1-2 sets of 10 repetitions or so) a few times a week seems to be sufficient. It is primarily simply taking the time to properly articulate the vertebrae throughout their full ROM that results in increased spinal health.
Yours in Fitness,