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The posture workbook : free yourself from back, neck and shoulder pain with the Alexander technique
Illustrates 5 key exercises to improve posture, awareness, flexibility, and mobility. These exercises will teach you how to move more easily and freely, and avoid such consequences of poor posture as overuse injuries to hands, arms, and shoulders.
BOOK
Efectos del entrenamiento en slackline sobre la resistencia del core y el equilibrio dinámico (Effects of slackline training on core endurance and dynamic balance)
Slackline challenges balance by walking on a tensioned strap, where the trunk muscles help to maintain or regain balance. This study aimed to compare a cohort of individuals who regularly practiced slackline and physically inactive individuals on core endurance (CE) and dynamic balance (DB) and to determine whether CE is associated with years of slackline practice. Nine individuals (7 men) who practiced slackline regularly (SG; age= 24.5±3.6 years) and nine physically inactive individuals (7 men) (CG; age= 23.2±3.3 years) were compared. CE was assessed with the McGill battery (trunk flexor, extensor, and side-bridge test) and the plank test. DB was measured with the modified star excursion balance test in stable and unstable conditions. The SG maintained a 36.2% and 45% longer time in left lateral bridge (p=.049) and plank (p=.031), respectively, compared to the CG. The distance achieved in the stable DB test was similar between groups, but in unstable condition was 37.8% greater (p=.016) in SG in both legs and 46.6% greater in the non-dominant leg (p=.039) compared to CG. The SG showed a correlation between years of slackline practice and flexor (r=.674; p=.046), right lateral (r=.765; p=.016) and left (r=.730; p=.026) trunk endurance. In conclusion, those who practice slackline maintain a longer time in the plank and left lateral bridge test and achieve a higher reach distance in unstable DB compared to physically inactive individuals who do not practice slackline.
Journal Article
Stand up straight! : a history of posture
Our bodies change over time; posture is ambiguous in a number of cultural and disciplinary realms. Your posture can denote you as healthy or ill, elegant or slovenly, beautiful or ugly. Gilman examines the history and sociology of posture: how society views who we are and what we are able to do by how our bodies appear. -- adapted from jacket and preface.
Book
Non-structural misalignments of body posture in the sagittal plane
Background
The physiological sagittal spinal curvature represents a typical feature of good body posture in the sagittal plane. The cervical and the lumbar spine are curved anteriorly (lordosis), while the thoracic segment is curved posteriorly (kyphosis). The pelvis is inclined anteriorly, and the lower limbs’ joints remain in a neutral position. However, there are many deviations from the optimal body alignment.
The aim of this paper is to present the most common types of non-structural misalignments of the body posture in the sagittal plane.
Main body of the abstract
The most common types of non-structural misalignments of body posture in the sagittal plane are as follows: (1) lordotic, (2) kyphotic, (3) flat-back, and (4) sway-back postures. Each one may influence both the skeletal and the muscular system leading to the functional disturbance and an increased strain of the supporting structures. Usually, the disturbances localized within the muscles are analyzed in respect to their shortening or lengthening. However, according to suggestions presented in the literature, when the muscles responsible for maintaining good body posture (the so-called stabilizers) are not being stimulated to resist against gravity for an extended period of time, e.g., during prolonged sitting, their stabilizing function is disturbed by the hypoactivity reaction resulting in muscular weakness. The deficit of the locomotor system stability triggers a compensatory mechanism—the stabilizing function is overtaken by the so-called mobilizing muscles. However, as a side effect, such compensation leads to the increased activity of mobilizers (hyperactivity) and decreased flexibility, which may finally lead to the pathological chain of reaction within the musculoskeletal system.
Conclusions
There exist four principal types of non-structural body posture misalignments in the sagittal plane: lordotic posture, kyphotic posture, flat-back posture, and sway-back posture. Each of them can disturb the physiological loading of the musculoskeletal system in a specific way, which may lead to a functional disorder.
When planning postural corrective exercises, not only the analysis of muscles in respect to their shortening and lengthening but also their hypoactivity and hyperactivity should be considered.
Journal Article
Influence of body position on maximum bite force
Objective: To evaluate the maximum bite force (MBF) in subjects with and without Temporomandibular Dysfunction (TMD), in threedifferent positions (sitting, lying and standing). Methods: The sample consisted of 60 individuals, aged between 19 and 35 years,who were divided into two groups: with TMD (n = 30) and without TMD (n = 30). First, the RDC/TMD questionnaire was applied and,after diagnosis, all of the subjects selected were submitted to the measurement of MBF, on each side (right and left), in three differentpositions (sitting, lying and standing), by means of a digital gnatodynamometer. Results: No significant difference in mean MBF was foundbetween the two groups; however, the mean MBF for the subjects, comparing the same side and different positions, was significantlydifferent, being smaller when the individual was lying down. Conclusions: According to the results, it was concluded that the MBF isinfluenced by the change of position.
Journal Article