By averaging all 6 values, we can estimate that an average European Swallow flies at cruising speed with a frequency of roughly 15 beats per. second, and an amplitude of roughly 22 cm. Last monthâs article on The Strouhal Number in Cruising Flight showed how simplified flight waveforms that graph amplitude versus.
In the anteroposterior direction, the curvature is referred to as kyphosis (increased posterior convexity of the spine) or lordosis (increased posterior concavity of the spine). Most scoliosis also has a rotational component. Conventional radiographs (x-rays) are an excellent means for assessing scoliosis.ospital for Special Surgery. Spinal malalignment-Scoliosis and Listhesis. Scoliosis refers to abnormal curvature of the spine. Scoliosis may result from various structural causes, although the most common form of scoliosis is called idiopathic scoliosis, which has no known cause.
Cervical spondylotic myelopathy (CSM) is the most common spinal cord disorder in persons more than 55 years of age in North America and perhaps in the world.As the number of older persons in the United States increases, the incidence of CSM will most likely increase.he aging process results in degenerative changes in the cervical spine that, in advanced stages, can cause compression of the spinal cord. Symptoms often develop insidiously and are characterized by neck stiffness, arm pain, numbness in the hands, and weakness of the hands and legs.