ACTIVE STRETCHING AND WORKING POSTURE CORRECTION TO IMPROVE PSYCHO-PHYSIOLOGICAL RESPONSE AMONG COMPUTER OPERATORS FOR HIGH SCHOOL STUDENTS

抄録

Repetitive movement, static posture, inappropriate computer workstation and inadequate lighting are the most common issues that have been found during operating computers. The objective of this study was to evaluate the effect of active stretching and working posture correction in improving psycho-physiological responses among computer operators. The randomized pre-test and post-test control group design was applied in this study, involving 26 subjects as computer operators. The subjects were divided into two groups. Group 1 consisted of 13 subjects working with conventional conditions, and Group 2 consisted of 13 subjects who were given intervention. Interventions provided included active stretching for two minutes, after two hours working on the computer and correcting the wrong posture from sideways view into straight view. The psychophysiological response was measured by reaction time, musculoskeletal complaints, and eye fatigue. This study found that the mean difference of reaction time before and during computer working practice was statistically significant (p < 0.001). The mean difference of musculoskeletal complaints between groups was statistically significant (p < 0.01). The difference of the mean difference in eye fatigue between groups was not statistically significant (p = 0.088). Ergonomic intervention in terms of active stretching for two minutes after two hours of working time and neck-working postures correction improved the reaction time and decreased musculoskeletal complaints.