Upper Arm Spirals in Down Dog
By Kreg Weiss, B HKin • February 1st, 2008 • 13875 Views
Downward Facing Dog pose (Adho Mukha Svanasana) comes across as basic forward bending Yoga pose – simple in its application and benefits. However, many yoga participants draw most of their attention to lower half of the body in achieving flexibility in the posterior lines (hamstring and calf muscles). The lack of attention on the placement and alignment of the upper body often dilutes the integrity and initial function of the pose.
Like all Yoga postures, Downward Facing Dog pose is meant to nourish the spine (and the energy channels traveling along with it) with a qualitative forward bend. In terms of being qualitative, this means the spine should enjoy renewed space, balance, and mobility. This includes all portions from the sacrum to the cervical spine (neck).
When one places all the emphasis on “pushing back” into the lower body's rear line stretch, one tends to overuse the shoulder muscles (deltoids and supraspinatus). The unmindful contraction of these shoulder muscles draws the shoulder girdle (scapula bones) and the head of the humerus (upper arm bone) inwards towards the neck and ears.
The result of this inward motion of the shoulder girdle and arm bones is a crowding of the cervical vertebrae and the brachial nerve plexus. The brachial plexi are complex branches of nerves traveling from the neck and over the collar bone regions. This branch of nerves gives rise to virtually all the nerves that innervate the upper limbs.
This inwards crowding from the shoulder girdle also transmits a closing motion of the upper trapezius muscles (upper back) that often mirrors an unnecessary contraction of the trapezius and other extensor muscles along the back of the neck. This echoing contraction of these muscles causes the head to lift and move into a back arching motion – counter productive to the aim of being in a forward bend. The neck also does not take advantage of gravity and the natural elongation of the vertebrae that occurs went the head floats towards the ground.