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Full-Text Articles in Medicine and Health Sciences
Development And Validation Of Wearable Inertial Sensor System For Postural Sway Analysis, Michael Pollind, Rahul Soangra
Development And Validation Of Wearable Inertial Sensor System For Postural Sway Analysis, Michael Pollind, Rahul Soangra
Physical Therapy Faculty Articles and Research
Postural sway is a fall risk assessment tool traditionally measured using forceplates. However, it is expensive and lack portability to usage in clinical environments. In this study, a wearable low-cost MEMS inertial sensor was developed and validated for sway assessment. This study had two principal objectives (1) To develop and validate an Inertial Measurement Unit (IMU) for sway analysis (2) To assess the feasibility of IMU in detecting slight balance impairments due to reduced proprioception or induced subthreshold vibrations on the feet. A total of 10 healthy young adults (five males and five females) participated in this study. We found …
Cortical Contribution To Linear, Non-Linear And Frequency Components Of Motor Variability Control During Standing, Niklas König Ignasiak
Cortical Contribution To Linear, Non-Linear And Frequency Components Of Motor Variability Control During Standing, Niklas König Ignasiak
Physical Therapy Faculty Articles and Research
Motor variability is an inherent feature of all human movements and reflects the quality of functional task performance. Depending on the requirements of the motor task, the human sensory-motor system is thought to be able to flexibly govern the appropriate level of variability. However, it remains unclear which neurophysiological structures are responsible for the control of motor variability. In this study, we tested the contribution of cortical cognitive resources on the control of motor variability (in this case postural sway) using a dual-task paradigm and furthermore observed potential changes in control strategy by evaluating Ia-afferent integration (H-reflex). Twenty healthy subjects …
What Is The Contribution Of Ia-Afference For Regulating Motor Output Variability During Standing?, Niklas König Ignasiak
What Is The Contribution Of Ia-Afference For Regulating Motor Output Variability During Standing?, Niklas König Ignasiak
Physical Therapy Faculty Articles and Research
Motor variability is an inherent feature of all human movements, and describes the system‘s stability and rigidity during the performance of functional motor tasks such as balancing. In order to ensure successful task execution, the nervous system is thought to be able to flexibly select the appropriate level of variability. However, it remains unknown which neurophysiological pathways are utilized for the control of motor output variability. In responding to natural variability (in this example sway), it is plausible that the neuro-physiological response to muscular elongation contributes to restoring a balanced upright posture. In this study, the postural sway of 18 …