The habitual carriage of heavy school backpacks by scholars has been associated with a clumsy forward leaning compensatory posture that has become a concern to both parents and medical practitioners. This report documents the change in sagittal plane posture by quantifying the variation in craniovertebral (CVA) and standing pelvic angles (SPA), as well as vertex and acrominale heights during the loaded (carrying of the school backpack) versus the unloaded (not carrying the school backpack) phases. The school backpack weighed 6.8kg (20.0% of the scholar’s body mass). The scholar carried the straps of the backpack on both shoulders respectively. There was a significant difference in vertex and acrominale heights during loaded versus unloaded phases (p=0.02). A positive association was found between the anterior pelvic tilt and diminished vertex height (r=0.99) indicating that heavy backpack carriage diminishes the child’s vertex height by anteriorly rotating the pelvis. Furthermore, there was a positive association with the change in CVA and SPA (r=0.89) suggesting that carrying heavy backpacks produces a complimentary diminished CVA with an increased SPA in order to accommodate the increased load on the vertebral column.