Spasm and electromyography intensity of bilateral extensor during relaxation period in trunk anterior flexion–extension performance response to sustained asymmetry spinal loading

Abstract Background The influence of sustained spinal loading on flexion relaxation phenomenon (FRP) in erector spinae (ES) in trunk anterior flexion–extension performance has been studied. However, no investigation has been reported on spasm after the loading. The aim of the study is to test if spa...

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Bibliographic Details

Published in:	BMC Musculoskeletal Disorders
Main Authors:	Longzhen Wang, Jingyuan Wang, Wenjin Wang, Xiangrong Cheng, Wenrong Wang, Xinhai Shan
Format:	Article
Language:	English
Published:	BMC 2025-06-01
Subjects:	Asymmetry spinal loading Low back pain Trunk flexion-extension Erector spinae Spasm
Online Access:	https://doi.org/10.1186/s12891-025-08772-z