Fig. 6

Capillary supply of GM, TFL, VL and RF in affected limb of HOA patients. a Representative immunofluorescence images of capillaries stained with CD31 (violet), MyHC 1 (green) and Laminin (white). Scale bars, 50 µm. b Capillary contacts per fiber, (c) capillary to fiber ratio calculated on an individual basis (C:Fi) and (d) capillary-to-fiber perimeter exchange index (CFPE index) of type 1 and type 2 fibers. Data were analyzed using repeated-measures two-way ANOVA and Sidak’s post-hoc test. * p < 0.05, ** p < 0.005, *** p < 0.0005 compared to type 1 fibers within each muscle. GM, gluteus minimus; HOA, hip osteoarthritis; RF, rectus femoris; TFL, tensor fascia latae; VL, vastus lateralis