The Influence of Different Sitting Positions on Cervical and Lumbar Posture

Abstract

Different sitting postures clearly resulted in changes in cervical spine position. Lumbar and pelvic position should be considered when control of cervical posture is desired.

Assessment of dental student posture in two seating conditions using RULA methodology – a pilot study

“…This in turn reduces the lumbar lor dosis, 12 causing the spine to slump and increasing the load placed on the spine. 27 Black et al 28 found that the movement of the lumbar spine infl uenced the move ment of the cervical spine and identifi ed the slumped sitting posture (posterior pelvic tilt) as the poor posture for the spine. The students using the CS may have registered higher risk scores as a result of sitting in posterior pelvic tilt (kyphosis of the lumbar spine).…”

“…4) posture. 27,28 On the other hand, the stu dents using the BSS were able to main tain an acceptable position of the neck, shoulders and trunk, as they were able to maintain anterior pelvic tilted posi tion contributing to the lower risk score (Fig. 3).…”

A Specific Exercise Program and Modification of Postural Alignment for Treatment of Cervicogenic Headache: A Case Report

“…An increase in lumbar extension can be associated with a compensator y thoracic kyphosis and extended cer vical spine. 3,9,16,26 The 2 factors, in particular, that were addressed to modify the patient's lumbar extension included latissimus dorsi length and abdominal control and strength. Decreased length of the latissimus dorsi muscle has been proposed to contribute to increased lumbar extension, 16 while abdominal muscle strength and length has been proposed to be important in maintaining a neutral lumbar spine alignment.…”

“…Lumbar region impairments have the potential to affect the biomechanics in the cervical region. 3 For example, an increased lumbar lordosis is often associated with an increased thoracic kyphosis and cervical extension. 26 Patients with CH appear to actively extend the lumbar region and lift their rib cage when they flex their shoulders, which may ultimately reinforce the active cervical extension previously described.…”

Effect of Snags Technique on Heart Rate Among Patients With Upper Cervical Dysfunction.

“…9 One of the many reasons for cervical spine dysfunction in females could be due to the misalignment of cervical and thoracic curveswhich could be result of faulty postures developed in females from their early adolescence due to breast development and joint laxity 10 thus inclining their posture towards relative thoracic kyphosis leading to compensatory changes in the cervical spine resulting in forward head posture and neck pain. 11,12 In addition to above reason Geertje et.al (1992) reported association of neck pain with psychological risk factors. However the psychological factors were not learnt in our study.…”