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Discover 19,805 clinical trials near Atlanta, Georgia. Find research studies in your area.
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NCT03924765
The increased metabolic and biomechanical demands of ambulation limit community mobility in persons with lower limb disability due to neurological damage. There is a critical need for improving the locomotion capabilities of individuals with stroke to increase their community mobility, independence, and health. Robotic exoskeletons have the potential to assist these individuals by increasing community mobility to improve quality of life. While these devices have incredible potential, current technology does not support dynamic movements common with locomotion such as transitioning between different gaits and supporting a wide variety of walking speeds. One significant challenge in achieving community ambulation with exoskeletons is providing an adaptive control system to accomplish a wide variety of locomotor tasks. Many exoskeletons today are developed without a detailed understanding of the effect of the device on the human musculoskeletal system. This research is interested in studying the question of how the control system affects stroke biomechanics including kinematic, kinetics and muscle activation patterns. By optimizing exoskeleton controllers based on human biomechanics and adapting control based on task, the biggest benefit to patient populations will be achieved to help advance the state-of-the-art with assistive hip exoskeletons.
NCT03014037
Musculoskeletal conditions are common sources of pain. Specifically, osteoarthritis affects nearly 27 million people in the United States. This disease leads to the breakdown of the cartilage surfaces of the joints, which serve as the connection points between the bones of the body, causing a large amount of pain and disability in patients. Increasing the number of available treatment options for osteoarthritis is becoming increasingly more important as Americans continue to age. Using stem cells taken from bone marrow is one of the non-operative treatments that has been gaining popularity in the recent past. This study aims to clarify how this procedure should best be done by comparing stem cell concentrations and patient outcomes (short and long term) in patients who have stem cells taken from one area vs two (unilateral vs bilateral posterior superior iliac spine (PSIS) aspirations).