In this paper, we take physical and health integration as the entry point. Firstly, based on transformation mechanism of adolescent idiopathic scoliosis construct a time delay differential model. Moreover, using theory characteristic equation discuss stability positive equilibrium under delays τ=0 τ≠0. Furthermore, through numerical simulation, it has been verified delay, τ, exceeds critical va...

Adolescent idiopathic scoliosis (AIS) is a common disease. It is a multi-factorial (polygenic) disease controlled by genetic and environmental factors. Studies searching for genetic factors of AIS using linkage and association analyses have been conducted and several susceptibility genes have been reported. This paper reviews the recent progress in the genome-wide association study of AIS in Ja...

Aim The aims of this study were to compare bone quality (speed-of-sound, SOS and z-scores) between female adolescent idiopathic scoliosis (AIS) patients and controls using quantitative ultrasound examination, and further to analyze the relationship between bone strength and maturation, severity and type of scoliosis in AIS patients measured by the same technique along the long axis of the dista...

Background While many studies have been performed on the effects of exercise on Adolescent Idiopathic Scoliosis (AIS) little research has been done into the underlying muscle physiology. Studies have suggested a fibre type imbalance, however, the implications of this difference as reflected through fatiguability have not been studied. The slope of the median frequency of the surface electromyog...

Study Design Preliminary evaluation of new tool. Objective To ascertain whether the newly developed content-based image retrieval (CBIR) software can be used successfully to retrieve images of similar cases of adolescent idiopathic scoliosis (AIS) from a database to help plan treatment without adhering to a classification scheme. Methods Sixty-two operated cases of AIS were entered into the new...

BACKGROUND Scoliotic curves do not necessarily stop progressing at skeletal maturity. The factors that influence curve behavior following bracing are not fully determined. Our objectives were to evaluate the loss of the scoliotic curve correction in a cohort of patients treated with bracing during adolescence and to compare the outcomes of 18 versus 23 h of bracing at a mean of 25 years post br...

The etiology of adolescent idiopathic scoliosis remains unknown. Angiotensin-converting enzyme and α-actinin-3 polymorphisms influence the characteristics of muscle fibers. The aim of this study was to examine the association between idiopathic scoliosis and genetic polymorphism of angiotensin-converting enzyme and α-actinin-3. Ninety-seven females with scoliosis, and 137 healthy, age-matched c...

OBJECTIVE To investigate the prevalence of adolescent idiopathic scoliosis in school children from 10 to 14 years in public schools in Goiânia, GO, Brazil. METHODS In a cross-sectional study, 476 students were randomly selected from 5 public schools, from a total of 33,343 students distributed in 162 schools. These subjects received the informed consent prior, which was returned after being s...

Background Idiopathic scoliosis (IS) is a deformity of the spine that occurs in up to 4% of children during childhood and adolescence. Idiopathic scoliosis is considered multifactorial, and family history may present several individuals affected. We still cannot determine which curves will worsen and at what rate, but some factors, such as age, growth potential and skeletal maturity have been a...