RT Journal Article
T1 Reliability of lumbar multifidus ultrasound assessment during the active straight leg raise test
A1 Plaza Manzano, Gustavo
A1 Navarro Santana, Marcos José
A1 Valera Calero, Juan Antonio
A1 Fabero Garrido, Raúl
A1 Fernández de las Peñas, César
A1 López De Uralde Villanueva, Ibai Julio
AB Background: Previous evidence showed altered lumbar multifidus (LM) activa-tion in populations with chronic nonspecific low back pain (LBP). We aimed toinvestigate the test–retest and inter-examiner reliability of ultrasound imaging(US) for assessing LM thickness at rest and activation during the active straightleg raise test (ASLR) and the association between thickness changes with clinicaloutcomes.Methods: Fifty- two patients with LBP and two examiners (one experienced andone novice) participated in this study. A total of 18 B- mode images at L4–L5 orL5–S1 level (both sides, 3 at rest and 6 during ASLR) were collected. For assess-ing test–retest reliability, the experienced examiner repeated the procedure after7 days. Intraclass correlation coefficients (ICC), standard error of measurements(SEM) and minimal detectable changes (MDC) were calculated.Results: Inter-examiner agreement was good to excellent (ICC3,2 = 0.71–0.92)and test–retest reliability was excellent (ICC3,1 = 0.91–0.98). Mean average ofmultiple measurements improved the agreement. Greater LM thickness at rest(p < .05) and greater thickness change after 3 s (p < .01) and 10 s (homolateralside, p < .01; contralateral side, p < .05) were associated with less pain intensity.Conclusions: US is a reliable method to assess the LM thickness at rest andcontracted during the ASLR in patients with LBP. The measurement at 3 s aftermaintaining ASLR, as well as the use of the mean of three measurements, hasbeen shown to be the most reliable method for measuring LM muscle thicknessduring ASLR.K E Y W O R D Slow back pain, lumbar multifidus, lumbar spine, reliability, stabilization, ultrasound imaging
PB Wiley
SN 0014-2972
SN 1365-2362
YR 2021
FD 2021-12-09
LK https://hdl.handle.net/20.500.14352/104814
UL https://hdl.handle.net/20.500.14352/104814
LA eng
NO Plaza‐Manzano, G., Navarro‐Santana, M. J., Valera‐Calero, J. A., Fabero‐Garrido, R., Fernández‐de‐las‐Peñas, C., & López‐de‐Uralde‐Villanueva, I. (2022). Reliability of lumbar multifidus ultrasound assessment during the active straight leg raise test. European Journal of Clinical Investigation, 52(5), e13728.
DS Docta Complutense
RD 8 abr 2025