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Biomedical Engineering and Bioengineering Commons™
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Full-Text Articles in Biomedical Engineering and Bioengineering
Motion-Resistant Pulse Oximetry, Ludvik Alkhoury
Motion-Resistant Pulse Oximetry, Ludvik Alkhoury
Dissertations
The measurement of vital signs ? such as peripheral capillary oxygen saturation (SpO2) and heart rate (HR) levels ? by a pulse oximeter is studied. The pulse oximeter is a non-invasive device that measures photoplethysmography (PPG) signals and extracts vital signs from them. However, the quality of the PPG signal measured by oximetry sensors is known to deteriorate in the presence of substantial human and sensor movements contributing to the measurement noise. Methods to suppress such noise from PPG signals measured by an oximeter and to calculate the associated vital signs with high accuracy even when the wearer …
A Novel Approach To Increase Upper Extremity Active Range Of Motion For Individuals With Duchenne Muscular Dystrophy Using Admittance Control, Madeline Catherine Corrigan
A Novel Approach To Increase Upper Extremity Active Range Of Motion For Individuals With Duchenne Muscular Dystrophy Using Admittance Control, Madeline Catherine Corrigan
Dissertations
Duchenne muscular dystrophy (DMD), a neuromuscular disease with a prevalence of 1 in 3,500-5,000 male births, results in progressive muscle weakness causing loss of independence and imposing the demands of costly and intrusive assistive support and personal care for daily living tasks. Upper extremity function begins to decline while ambulation is still possible and gradually progresses with time, playing a prominent role in loss of independence. Importantly, upper extremity functional limitations exist despite residual muscle strength that is insufficient to lift the arms against gravity. Presently, there exist a number of commercially available assistive devices aimed at augmenting upper extremity …