Reduced inclination of cervical spine in a novel notebook screen system - implications for rehabilitation

In a field study a new notebook design with adjustable screen was analyzed and compared to standard notebook position.There are highly significant differences in the visual axis of individuals who are seated in the novel notebook position in comparison to the standard position. Also, differences are present between further alternative notebook positions. Testing of gender and glasses did not reveal influences.This study demonstrates that notebooks with adjustable screen may be used to improve the posture. Future studies may focus on patients with musculoskeletal diseases.Over the past centuries a profound change in the work reality of most citizens has happened worldwide. In Europe at the end of the 19th century great parts of the workforce was employed in the agriculture and producing sector [1]. Today these sectors cease importance in regard to the people employed while the service and information industries have gained importance [1]. Here the typical work environment is the workstation. Although the fading away of the heavy and dirty work lead to an exoneration of health risks new work related health challenges have appeared. Above all the psychological and ergonomic burden of work gets into the focus of interest [2]. The physical strain of the office work relates to the musculoskeletal system which centers on the shoulder/arm and cervical and lumbar region [3]. Local strain in the musculoskeletal system can be relayed to distant sites, resulting in complains in further regions. Diseases of the musculoskeletal system are a frequent cause of work related morbidity. In a recent survey of the Federal Institute for Occupational Safety and Health 46,2% of the total workforce experienced shoulder neck pain, of which 61% lead to medical consultation [4]. The study identified declination of the cervical spine a risk factor next to forced posture and hard labor. In this line detailed specifications have been worked out to minimize work related adverse effects at these wo