ACADEMIA Letters Postural and Musculoskeletal Relations of Inferior Cross Syndrome Willians Cassiano Longen, Physical therapist. Post-Doctorate. Master’s Program in Public Health-PPGSCol, University of the Extreme South of Santa Catarina-UNESC Taís Sparremberger Justo, Fellow of the Center for Studies and Research in Workers’ Health-NEPST of the University of the Extreme South of Santa Catarina-UNESC ABSTRACT Introduction: Pelvic Cross Syndrome is characterized by muscle imbalance, such as inhi- bition of muscles that are part of the pelvic joint muscle group, identifcation of incorrect activation, excessive strength and shortening or weakness of some of these muscles, which may lead to mechanical and postural dysfunctions, due to these imbalances cross-section. Objectives: To identify the connections and the existence of a relationship between postural patterns and musculoskeletal imbalances with the manifestation of inferior cross-syndrome. Methods: The research involved the review of studies such as articles from journals and jour- nals, dissertations and theses, in Portuguese and English, with a database available on the Internet. Results: It was identifed that pelvic cross syndrome is characterized mainly by muscle imbalance caused by the gluteus and abdominal muscles that are inhibited and the eerormuscles of the spine, psoas and iliac contracted. Conclusion: it was possible to identify a certain connection of musculoskeletal imbalances and certain postures such as hyperlordosis and pelvic anteroversion in individuals with inferior cross syndrome. Another fnding of the study, although it was not the central objective, is that there is a predisposition to these people to present a pain in the lumbar segment. Academia Letters, December 2021 Corresponding Author: Willians Cassiano Longen, wcl@unesc.net Citation: Cassiano Longen, W., Sparremberger Justo, T. (2021). Postural and Musculoskeletal Relations of Inferior Cross Syndrome. Academia Letters, Article 4281. https://doi.org/10.20935/AL4281. 1 ©2021 by the authors — Open Access — Distributed under CC BY 4.0