RT Journal Article T1 Ultrasonography features of abdominal perimuscular connective tissue in elite and amateur basketball players: an observational study A1 Morales, Carlos Romero A1 Polo, Jaime Almazán A1 Rodríguez Sanz, David A1 López, Daniel López A1 González, Sergio Vázquez A1 Buría, José Luis Arias A1 Calvo Lobo, César AB The purpose of this study was to assess and compare with rehabilitative ultrasound imaging (RUSI) the perimuscular connective tissue (PMCT) and interrecti distance (IRD) between elite and amateur basketball players. A sample of 22 healthy basketball players was included and divided into two groups: elite basketball players from Spanish 1st division (n = 11) and amateur basketball players from an entertainment Spanish division (n = 11). Ultrasound images of the external oblique (EO), internal oblique (IO), transversus abdominis (TrAb), rectus anterior (RA) and IRD PMCT were measured and analysed by the ImageJ software. Measurements of abdominal wall muscles PMCT present statistically differences (P < .05) for an increase of perimuscular connective tissue of external oblique (PMCTEO), perimuscular connective tissue of transversus abdominis (PMCTTA) of the left side and an increase of PMCTEO on the right side in favor of the elite group. Rather, the study showed statistically differences (P < .05) for a decrease of perimuscular connective tissue between the internal oblique and transversus abdominis (PMCTIO-TA), and a decrease in PMCT total summation of the left side with elite group in respect to amateur group. This study reported an increase of left PMCTEO, left PMCTTAA, right PMCTEO as well as a decrease of left PMCTIO-TA and in PMCT total summation on the left side. PB Associacao Medica Brasileira SN 0104-4230 YR 2018 FD 2018-10 LK https://hdl.handle.net/20.500.14352/125136 UL https://hdl.handle.net/20.500.14352/125136 LA eng NO Morales CR, Polo JA, Sanz DR, López DL, González SV, Buría JLA, et al. Ultrasonography features of abdominal perimuscular connective tissue in elite and amateur basketball players: An observational study. Revista da Associacao Medica Brasileira. 2018;64(10):936-41. DS Docta Complutense RD 15 abr 2026