Abstract #4522

A Low-Cost MR Compatible Ergometer For Assessing Lower Leg Muscle Metabolism

Xuejiao Che¹, Ryan Brown ^1,2, Leeor Alon^1,2, Ravinder R Regatte¹, and Prodromos Parasoglou¹

¹Department of Radiology, New York University School of Medicine, New York, NY, United States, ²NYU WIRELESS, Polytechnic Institute of New York University, Brooklyn, NY, United States

In this work, we designed and constructed an inexpensive MR compatible ergometer that can be used for studying lower leg muscle metabolism. This ergometer allows subjects to perform a plantar flexion exercise protocol while ³¹P-MR data are acquired. The device is easy to use, and it can be positioned inside the bore of the magnet in less than 10 min. The mechanical power exerted by the subject can be estimated from force and angle displacement signals that are continuously monitored, while the exersice intensity can be varied by changing the number and/or the material of the resistive elastic cords.

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