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Abstract #1163

Fourier Analysis of Muscle BOLD Data After Exercise

Andrew D. Davis1, Michael D. Noseworthy2,3

1Medical Physics & Applied Radiation Sciences, McMaster University, Hamilton, ON, Canada; 2Electrical & Computer Engineering, School of Biomedical Engineering, & Department of Radiology, McMaster University, Hamilton, Ontario, Canada; 3Brain Body Institute, St. Joseph's Healthcare, Hamilton, Ontario, Canada

BOLD data was acquired while plantar flexion exercise was performed using an in-house built MRI compatible ergometer. An intense exercise protocol of 2.5 minutes plantar flexion at 0.5 Hz at 50% of the subjects MVC was performed. Immediately following the exercise, 10 minutes of BOLD data was acquired. Region of interest (ROI) analysis was performed on the data to segment the muscle groups of the lower leg, with both broadly inclusive ROIs that touched arteries, and more carefully drawn ROIs which excluded them. FT and time-series analysis was done. Next, an exercise protocol was performed to determine the effects of applying SAT bands just outside the FOV