Li-ESW induces myodifferentiation. Urethral satellite cells were untreated (ctrl), treated with 2% horse serum (Ind), Li-ESW, or Ind + Li-ESW. Seven days later, the cells were stained for MHC (green) and myogenin (red), and the myotubes’ length and width determined. *, P<0.05 vs. ctrl & Ind. Li-ESW, low-intensity extracorporeal shock wave; MHC, Myosin heavy chain.