Evolutionary and functional adaptations of the spine and trunk are inherently related to an important role of gravity for the mechanisms determining a specific postural tone and body segment configurations, when comparing bipedalism and quadrupedalism [1]. But other than this, gravity has a major impact on specific rules of motion in the gravity field, and foot-support interactions in particular. Here, we looked at the neuromechanical adjustments made by people walking with bent posture that may help us understand the physiological mechanisms and biomechanical regulations underlying our tendency toward upright posture, as well as possible motor control disturbances in some diseases associated with trunk orientation problems.
Nunez-Lisboa, M., & Dewolf, A. (2023). Neuromechanical adjustments in human walking with bent posture. Gait & Posture, 105(1), S32. https://doi.org/10.1016/j.gaitpost.2023.07.323 (Original work published 2023)