Sit related Musculoskeletal Disorders (MSDs) are frequent and several studies have pointed out an association between back pain and prolonged sitting. Students spend about 84% to 88% of their time in the sitting position8. 41.6% of students experi-enced pain while sitting in the classroom and 69.5% of the back pain occurred after 1 h of sitting and increases with the duration of the sitting position at school.