Why do we need a strong back?
Spines play a critical supporting role in standing, moving, bending and twisting. Most of our weight bearing and body movements take place where the lumbar spine meets the pelvis. Therefore a strong and stable back would be very beneficial. Spine stability requires the involvement of all the muscles in the torso to prevent low back injuries and support and protect the spine. Exercises can be performed to strengthen our muscles, minimizing the load placed the spine, preventing pain.
The back can be described as having three different layers: the outer layer, the middle layer and the deep layer.
The large, thick and long muscles that are found just below the skin make up the outer layer. This layer assists in straightening up from a bent position, moving from lying on our back to sitting up and lifting heavy objects. These muscles are used daily and tend to be very stable. Traditional back and abdominal exercises strengthen this layer.
The middle layer contains various muscles that provide the majority of our stability. This stability is responsible for keeping our low back working effectively and without pain. This layer prevents excessive range of motion, therefore preventing injury.
The deep layer consists of the spine and spinal discs, as well as ligaments and tiny muscles that attach each vertebrae. This layer is responsible for stabilizing the spinal column and providing the brain with information about joints and each vertebrae. Through everyday exercise, the deep layer is not being stabilized.