Christopher Paul Elder1,2, Ryan N. Cook1,3, Ken L. Wilkens1, Marti A. Chance2, Otto A. Sanchez, 12, Bruce M. Damon, 12
1Institute of Imaging Science, Vanderbilt University, Nashville, TN, United States; 2Radiology and Radiological Sciences, Vanderbilt University, Nashville, TN, United States; 3Biomedical Engineering, Vanderbilt University, Nashville, TN, United States
The purpose of this project was to use MRI to determine the temporal sequence of muscle recruitment during cycling by applying variable work rates during the pedal cycle and validate the imaging data using electromyography. Variable work rates were applied in two different distributions; the first increased post-exercise T2 in the extensors and flexors of the thigh, the second increased post-exercise T2 in the flexors only. Similar patterns were observed in the electromyography data, providing validation for the future use of the technique to fully characterize recruitment in individual muscles during cycling, along with applications to functional electrical cycling.