Last modified July 19 2012 11:36 AM
JESSE V. JACOBS
Rehabilitation and Movement Science
Ph.D., Oregon Health & Science University, 2006
Every time we move, such as when reaching for an object, standing up from being seated, or walking from one place to another, we produce forces that, if unaccounted for, would render our movement unsuccessful, inefficient, and potentially injurious. In addition, we are regularly faced with a dynamic environment in which we must quickly respond in order to preserve the safety of our body and maintain our movement goals (such as when avoiding objects, slipping, tripping, or when bumped or pushed). In order to counteract these perturbing forces and ensure successful, efficient and safe movement, we must engage in a complex interaction of sensory integration and motor coordination to preserve and integrate our posture and movement.
These activities require activation at all levels of the nervous system, so it is no surprise that impaired posture and movement become evident with disorders ranging from musculoskeletal injury and pain to neurological diseases of the highest centers of the neural axis. Many of the neural mechanisms responsible for integrating posture and movement remain unclear, as do the neural mechanisms of impairment that coincide with disordered posture and movement. Therefore, as a member of the Human Motion Analysis Laboratory in the Department of Rehabilitation and Movement Science, our research investigates the neural mechanisms that underlie human posture and movement, with and without disease or injury.
Methods include the use of electroencephalography (EEG) to record movement-related brain activation, electromyography (EMG) to record muscle activation patterns, kinematics to record a person’s movement, and kinetics to record the forces produced by a person’s movement. Specific populations of interest include people with musculoskeletal injury (low back pain), the elderly, and people with neurological disorders (such as Parkinson's disease or multiple sclerosis). In identifying the neural control and dyscontrol of posture and movement, our research then seeks to translate our knowledge of these sensory-motor control mechanisms to investigate evidence-based diagnostic tests and rehabilitation strategies that target the identified neural impairments of posture and movement in hopes of improving health and independent function.
Jacobs JV, Yaguchi C, Kaida C, Irei M, Naka M, Henry SM, Fujiwara K (2011) Effects of experimentally induced low back pain on the sit-to-stand movement and electroencephalographic contingent negative variation. Exp Brain Res 215:123-134.
Jacobs JV, Henry SM, Jones SL, Hitt JR, Bunn JY (2011) A history of low back pain associates with altered electromyographic activation patterns in response to perturbations of standing balance. J Neurophysiol 106:2506-2514.
Kasser SL, Jacobs JV, Foley JT, Cardinal BJ, Maddalozzo GF (2011) A Prospective Evaluation of Balance, Gait, and Strength to Predict Falling in Women With Multiple Sclerosis. Arch Phys Med Rehabil 92:1840-1846.
Jacobs JV, Horak FB, Lou JS, Kraakevik JA (2009) The supplementary motor area contributes to the timing of the anticipatory postural adjustment during step initiation in participants with and without Parkinson’s disease. Neuroscience 164:877-885.
Jacobs JV, Horak FB, Fujiwara K, Tomita H, Furune N, Kunita K (2008) Changes in the activity of the cerebral cortex relate to postural response modification when warned of a perturbation. Clin Neurophysiol 119:1431-1442.
Last modified July 19 2012 11:36 AM