Introduction Previous cross-sectional study demonstrated that spinal kyphosis was signiflcantly associated with back extensor strength. However, the influence of trunk muscle on the development of kyphosis is still unclear due to the paucity of longitudinal study. The purpose of this study was to evaluate the association of back extensor strength and progression of kyphosis with longitudinal fo...

The risk factors of post-laminoplasty kyphosis in patients with cervical spondylotic myelopathy (CSM) without preoperative kyphotic alignment are not well known. This study aimed to compare clinical and radiological data between patients with or without post-laminoplasty kyphosis and to investigate the factors associated with post-laminoplasty kyphosis in CSM patients without preoperative kypho...

BACKGROUND The causes of age-related hyperkyphosis (HK) include osteoporosis, but only 1/3 of those most severely affected have vertebral fractures, suggesting that there are other important, and potentially modifiable causes. We hypothesized that muscle mass and quality may be important determinants of kyphosis in older persons. METHODS We recruited 72 persons >65 years to participate in a p...

BACKGROUND Kyphosis is a cause of scapular dyskinesis, which can induce various shoulder disorders, including subacromial impingement syndrome (SIS). This study aimed to clarify the impact of kyphosis on SIS with use of cross-sectional data from the Locomotive Syndrome and Health Outcome in Aizu Cohort Study (LOHAS). METHODS The study enrolled 2144 participants who were older than 40 years an...

Kyphosis is an idiopathic disease characterized by abnormal, outward spinal curvature. A spontaneous outbreak and subsidence of kyphosis over a 4-mo period in the University of Wisconsin Swine Research and Teaching Center herd coincided with an accidental omission of vitamin D(3) in 1 of 2 premixes used in sow diets. This controlled experiment was conducted to determine whether vitamin D deleti...

STUDY DESIGN Single-cohort laboratory-based study. OBJECTIVES To measure thoracic spine extension motion during bilateral arm elevation using functional radiography and photographic image analysis. BACKGROUND Impairment of thoracic spine extension motion may impact shoulder girdle function. Motion of the thoracic spine during arm movement has not been directly measured using functional radi...

Background & Objective:  Hyper- kyphosis negatively affects health status, physical mobility, and quality of life. Corrective exercise interventions are often utilized to manage subjects with thoracic hyper-hypnosis. The purpose of this study was to investigate the effectiveness of multimodal spine strengthening exercises (spinal strengthening, spinal alignment and other such exercises for incr...

OBJECTIVE The purpose of this study was to determine the prevalence of kyphosis in a Turner syndrome (TS) population. METHODS Standing lateral thoracic spine and standing anterior-posterior (A-P) scoliosis radiographs were obtained on all girls with TS between the ages of 5 and 18 years seen in a TS clinic between July 2000 and March 2001. Medical histories were reviewed, and a pediatric orth...

BACKGROUND The efficacy of laminoplasty in patients with cervical kyphosis is controversial. The purpose of this study was to investigate the impact of the initial pathogenesis on the clinical outcomes of laminoplasty in patients with cervical kyphosis. MATERIAL AND METHODS A total of 137 patients with cervical spondylotic myelopathy (CSM) or ossification of the posterior longitudinal ligament ...