RT Journal Article
T1 Patients with Axial Spondyloarthritis Show an Altered Flexion/Relaxation Phenomenon
A1 Aranda-Valera, I. Concepcion
A1 Garrido-Castro, Juan Luis
A1 Martinez-Galisteo, Alfonso
A1 Pena-Amaro, Jose
A1 Gonzalez-Navas, Cristina
A1 Cuesta-Vargas, Antonio
A1 Jimenez-Reina, Luis
A1 Collantes-Estevez, Eduardo
A1 Lopez-Medina, Clementina
K1 axial spondyloarthritis
K1 surface electromyography (sEMG)
K1 flexion relaxation ratio
K1 functional assessment
K1 clinimetric properties
K1 Low-back-pain
K1 Flexion-relaxation phenomenon
K1 Ankylosing-spondylitis
K1 Surface electromyography
K1 Lumbar flexion
K1 Emg
K1 Responsiveness
K1 Enthesitis
K1 Criteria
AB 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 = 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.
PB Mdpi
YR 2021
FD 2021-05-01
LK https://hdl.handle.net/10668/28321
UL https://hdl.handle.net/10668/28321
LA en
DS RISalud
RD Apr 10, 2025