Median qualitative grades for selected muscles at baseline and at 12 months.

Number of patients with the same, an increased or decreased qualitative grade at the 12 months follow up compared to the baseline grade is given. Non-parametric paired Wilcoxon signed rank test was used to assess change.
*BFSH was graded in 29 participants. BFSH in 3 subjects could not be graded due to poor visualisation. GM = Gluteus Maximus, BFLH = Biceps Femoris long head, ST = Semitendinosus, SM = Semimembranosus, BFSH = Biceps Femoris short head, SAR = Sartorius, VM = Vastus Medialis, GRAC = Gracilis, VL = Vastus Lateralis, RF = Rectus Femoris, MG = Medial Gastrocnemius, LG = Lateral Gastrocnemius, PL = Peroneus Longus, SOL = Soleus, TA = Tibialis Anterior.