“…Although this posture may enable more comfort and convenience, prior computational human body modelling studies have suggested that the lumbar spine in this posture may experience higher combined axial compression and flexion than typically experienced by motor vehicle occupants in frontal crashes in the standard upright posture, resulting in the potential for lumbar spine injuries 2,4,8,9,11,12,14,22,28 . Lumbar spine fractures also have reportedly demonstrated an increasing frequency in crash field data 5,15,20,33,26 , with the majority occurring in frontal crashes 20,26 .…”