A patient was evaluated several months ago for a denervating injury as a result of a stabbing incident. When the strength duration (SD) curve from today is compared with the first SD curve, there is a marked migration of all of the fibers from the upper right hand corner down toward the lower left. What does this imply?
a. The denervating injury has worsened over the past several months.
b. The patient has undergone successful rehabilitation and is showing improvement in muscle fiber function.
c. There may be a shift in the type of muscle fibers being recruited, potentially indicating compensatory mechanisms.
d. The patient's muscle fibers may be adapting to the denervating injury, leading to changes in the strength duration curve.