Changes in Blood Volume Pulse during Excercise Recovery in Activity-based Therapy for Spinal Cord Injury

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Conference Proceeding
33rd Annual International Conference of the IEEE Engineering in Medicine and Biology Society, 2011, pp. 693 - 696
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This paper presents the results of cardiovascular changes that occur during a novel rehabilitation strategy called activity based therapy (ABT). Blood volume pulse (BVP) signals were measured during functional electrical stimulation (FES)-induced cycling in adults with spinal cord injury (SCI) persons and results were compared to a passive cycling task and able-bodied controls performing normal cycling. BVP signals were compared during three conditions, a baseline preexercise condition, 5 minutes after exercise and after 30- minutes rest following exercise. Exercise recovery was evaluated using normalized inner products values in BVP signals. The results showed that FES-induced cycling in SCI participants resulted in a significantly greater peripheral resistance level and longer time to recover from exercise compared with passive cycling and normal cycling in ablebodied controls.
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