“…According to the image evaluations of plantar fasciitis in patients with PHP, the plantar fascia thickens to ≥4 mm [ 25 , 26 ], the low echoic region or storage of the fluid component occurs around the plantar fasciitis [ 26 ], and abnormal blood flow occurs [ 12 , 27 ]. Abnormal angiogenesis occurs at the site of injury in chronic musculoskeletal diseases [ 28 , 29 ], and the blood flow velocity in the vessels in the area increases [ 8 , 9 ]. To the best of our knowledge, no research has evaluated the blood flow velocity of the PTA.…”