Title

The influence of different sitting postures on head/neck posture and muscle activity

Document Type

Journal Article

Publisher

Elsevier

Faculty

Computing, Health and Science

School

Exercise, Biomedical & Health Science

RAS ID

10860

Comments

This article was originally published as: Caneiro, J.P., O'Sullivan, P., Burnett, A., Barach, A., O'Neil, D., Tveit, O., & Olafsdottir, K. (2010). The influence of different sitting postures on head/neck posture and muscle activity. Manual Therapy, 15(1), 54-60. Original article available here.

Abstract

To date the influence that specific sitting posture has on the head/neck posture and cervico-thoracic muscle activity has been insufficiently investigated. Therefore the aim of this study was to investigate whether three different thoraco-lumbar sitting postures affect head/neck posture and cervico-thoracic muscle activity. Twenty (10 men, 10 women) asymptomatic subjects were placed in 3 standardized thoraco-lumbar sitting postures (lumbo-pelvic, thoracic upright and slump) to investigate their influence on cervicothoracic muscle activity and head/neck posture. There were significant differences in lumbar and thoracic curvatures in the 3 different sitting postures (P< 0.002). Slump sitting was associated with greater head/neck flexion, anterior translation of the head (P< 0.001) and increased muscle activity of cervical erector spinae (CES) compared to thoracic and lumbo-pelvic sitting (P ¼ 0.001). Thoracic upright sitting showed increased muscle activity of thoracic erector spinae (TES) compared to slump and lumbo-pelvic postures (P ¼ 0.015). Upper trapezius (UT) demonstrated no significant difference in muscle activation in the 3 sitting postures (P < 0.991). This study demonstrates that different sitting postures affect head/neck posture and cervico-thoracic muscle activity. It highlights the potential importance of thoraco-lumbar spine postural adjustment when training head/neck posture.

DOI

10.1016/j.math.2009.06.002

 

Link to publisher version (DOI)

10.1016/j.math.2009.06.002