RT Journal Article T1 Ultrasound evaluation of extrinsic foot muscles in patients with chronic non-insertional Achilles tendinopathy: A case-control study A1 Romero Morales, Carlos A1 Martín Llantino, Pedro Javier A1 Calvo Lobo, César A1 Sánchez Gómez, Rubén A1 López López, Daniel A1 Pareja Galeano, Helios A1 Rodríguez Sanz, David AB Aim: The purpose of the present study was to compare and quantify with ultrasound imaging (USI) the extensor digitorum longus (EDL), tibialis anterior (TA) and peroneus muscles (PER) muscle thickness and cross-sectional area (CSA) between chronic non-insertional Achilles tendinopathy (AT) and healthy subjects.Methods: a sample of 143 individuals was recruited and divided in two groups: chronic non-insertional AT group (n = 71) and a healthy group (n = 72). The thickness and CSA were assessment by USI for EDL, TA and PER muscles in both groups.Results: The thickness evaluation for the TA muscle increased showing statistically significant differences (P = 0.018) as well as for the thickness of the PER muscles significant differences (P = 0.001) were observed in favor the tendinopathy group. The CSA measurements showed statistically significant differences for a decrease in EDL (P = 0.000), TA (P = 0.001) and PER muscles (P = 0.011) for the tendinopathy group with respect to the control group.Conclusions: The CSA of the EDL, TA and PER muscles is reduced in participants with chronic non-insertional AT. The thickness for TA muscle is increased as well as a decrease of PER muscles thickness is presented for the AT group with respect to the control group. PB Elsevier SN 1466-853X YR 2019 FD 2019-05-20 LK https://hdl.handle.net/20.500.14352/116422 UL https://hdl.handle.net/20.500.14352/116422 LA eng NO Romero-Morales, Carlos, et al. «Ultrasound Evaluation of Extrinsic Foot Muscles in Patients with Chronic Non-Insertional Achilles Tendinopathy: A Case-Control Study». Physical Therapy in Sport, vol. 37, mayo de 2019, pp. 44-48. DOI.org (Crossref), https://doi.org/10.1016/j.ptsp.2019.02.006. NO ninguna DS Docta Complutense RD 5 abr 2025