To Find Out the Effect of Varying the Back Rest Angles on Drivers Posture While in a Static Condition

Abstract

Abstract : A total of 32 male subjects, with a mean age of 26, were recruited for the study on the basis of inclusion and exclusion criteria .Before included in the study , the consent form were taken from all the subjects. They were recruited from different hospitals of Dehradun. 32 male subjects were taken for photographs with car seats adjusted at three different angles. Subjects were asked to assume their comfortable sitting posture, while resting their backs on the car seat, holding the steering wheel and looking directly though the wind shield. Photographs were taken of each subject at three different backrest angles; 110°, 120°, and 130°. Each photo was analyzed using corel-draw software, to calculate the craniovertebral angle, craniohorizontal angle, and sagittal shoulder posture. The result, CHA vs CVA (p=0.001), CVA vs SSP (p=0.045) and SSP vs CHA (p= 0.001) was found to be significant. Similarly, post hoc analysis for multiple comparisons test was applied for 130°. The result, CHA vs CVA (p=0.001), CVA vs SSP (p=0.042) and SSP vs CHA (p=0.001)) was found to be significant.