2026-07-24T06:25:21Zhttps://repisalud.isciii.es/rest/oai/request

oai:repisalud.isciii.es:20.500.12105/183262024-02-19T15:28:02Zcom_20.500.12105_15322com_20.500.12105_2051col_20.500.12105_16927col_20.500.12105_16982

00925njm 22002777a 4500 dc Aranda-Valera, I Concepción author Garrido-Castro, Juan Luis author Martínez-Galisteo, Alfonso author Peña-Amaro, José author González-Navas, Cristina author Cuesta-Vargas, Antonio author Jiménez-Reina, Luis author Collantes-Estévez, Eduardo author López-Medina, Clementina author 2021-04-29 Axial spondyloarthritis (axSpA) is a chronic rheumatic disease characterized by the presence of inflammatory back pain. In patients with chronic low back pain, the lumbar flexion relaxation phenomenon measured by surface electromyography (sEMG) differs from that in healthy individuals. However, sEMG activity in axSpA patients has not been studied. The purpose of this study was to analyze the flexion relaxation phenomenon in axSpA patients. A study evaluating 39 axSpA patients and 35 healthy controls was conducted. sEMG activity at the erector spinae muscles was measured during lumbar full flexion movements. sEMG activity was compared between axSpA patients and the controls, as well as between active (BASDAI ≥ 4) and non-active (BASDAI 0.8 for 1/FRR) and criterion validity. ROC analysis showed good discriminant validity for axSpA patients (AUC = 0.835) vs. the control group using 1/FRR. An abnormal flexion/relaxation phenomenon exists in axSpA patients compared with controls. sEMG could be an additional objective tool in the evaluation of patient function and disease activity status. 10.3390/diagnostics11050810 2075-4418 Diagnostics (Basel, Switzerland) http://hdl.handle.net/10668/17747 33947109 http://hdl.handle.net/20.500.12105/18326 axial spondyloarthritis clinimetric properties flexion relaxation ratio functional assessment surface electromyography (sEMG) Patients with Axial Spondyloarthritis Show an Altered Flexion/Relaxation Phenomenon.