RT Journal Article
T1 Effectiveness of simultaneous bilateral visual diaphragm biofeedback under low back pain: influence of age and sex
A1 Molina Hernández, Nerea
A1 Rodríguez Sanz, David
A1 López Chicharro, José
A1 Becerro De Bengoa Vallejo, Ricardo
A1 Losa Iglesias, Marta Elena
A1 Vicente Campos, Davinia
A1 Marigán Rubio, Daniel
A1 Gutiérrez Torre, Samuel Eloy
A1 Calvo Lobo, César
AB Introduction: The aim of the present study was to determine the effectiveness of simultaneous bilateral visual diaphragm biofeedback (BFB) from ultrasonography in conjunction with inspiratory muscle training (IMT) on diaphragmatic thickness during normal breathing and respiratory and clinical outcomes in patients with non-specific low back pain (NSLBP) and determine the influence of age and sex.Methods: A single-blind randomized clinical trial was carried out (NCT04582812). A total sample of 96 patients with NSLBP was recruited and randomized by sex-based stratification into IMT (n = 48) and BFB + IMT (n = 48) interventions over 8 weeks. Bilateral diaphragmatic thickness at maximum inspiration (Tins) and expiration (Texp), respiratory pressures, lung function, pain intensity, bilateral pressure pain threshold (PPT), disability, and quality of life were measured at baseline and after 8 weeks.Results: The BFB + IMT group showed significant differences (p < 0.05) with increased left hemidiaphragm thickness at Tins and Tins-exp (d = 0.38–053), and right and left PPT (d = 0.71–0.74) versus the IMT group. The interaction with sex was statistically significant (p = 0.007; F(1,81) = 7.756; ηp2 = 0.087) and higher left hemidiaphragm thickness at Tins was predicted by the BFB + IMT group (R2 = 0.099; β = 0.050; F(1,82) = 8.997; p = 0.004) and male sex (R2 = 0.079; β = 0.045; F(1,81) = 7.756;p = 0.007). Furthermore, greater left hemidiaphragm thickness at Tins-exp was predicted by younger age (R2 = 0.052; β = −0.001; F(1,82) = 4.540; p = 0.036).Discussion: The simultaneous bilateral visual diaphragm biofeedback by ultrasonography in conjunction with IMT was effective in both increasing the left diaphragmatic thickness during inspiration, which was positively influenced and predicted by male sex and younger age, and increasing the bilateral PPT of the paraspinal muscles in patients with NSLBP.
PB Fronters Media S.A.
YR 2024
FD 2024-07-09
LK https://hdl.handle.net/20.500.14352/106097
UL https://hdl.handle.net/20.500.14352/106097
LA spa
NO Molina-Hernández N, Rodríguez-Sanz D, Chicharro JL, Becerro-de-Bengoa-Vallejo R, Losa-Iglesias ME, Vicente-Campos D, Marugán-Rubio D, Gutiérrez-Torre SE and Calvo-Lobo C (2024), Effectiveness of simultaneous bilateral visual diaphragm biofeedback under low back pain: influence of age and sex. Front. Physiol. 15:1407594. doi: 10.3389/fphys.2024.1407594
NO The author(s) declare that financial support was received for the research, authorship, and/or publication of this article from Grant PID 2020-117162RA-I00 funded by MICIU/AEI/10.13039/501100011033. This work was supported by the Ministry of Science, Innovation and Universities, as well as the State Agency for Investigation of the Spanish Government, under the 2020 Call for Innovation, Development and Research (“I + D + i Projects”) within the framework of the State Programs for Knowledge Generation and Scientific and Technological Strengthening of the I + D + i System and I + D + i oriented to the Challenges of Society.
DS Docta Complutense
RD 30 jul 2025