Eccentric and concentric contraction of multifidus lumborum and longissimus muscles during flexion-relaxation test using discrete wavelet transform

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dc.contributor.authorSilvestre, Rony
dc.contributor.authorCarlos Letelier, Juan
dc.contributor.authorPerez, Marcelo
dc.contributor.authorCifre, Manuela
dc.contributor.authorDe la Fuente, Carlos
dc.date.accessioned2025-01-20T20:21:17Z
dc.date.available2025-01-20T20:21:17Z
dc.date.issued2023
dc.description.abstractPurpose Muscle activation can reflect the stability of the lumbar spine based on the electrical features and kinematics during a dynamic test. However, there is a lack of knowledge of the activation of paravertebral muscles i.e., during the flexion-relaxation test. Hence, we determine the band frequency differences between eccentric (ECC) and concentric (CON) contraction during the flexion-relaxation test in healthy untrained participants without lumbar pain, both multifidus lumborum and longissimus muscles. Methods 40 healthy participants (aged 30.6 +/- 6.9 years) were recruited. Kinematic and surface electromyography were collected to compare the ECC and CON spectral characteristics of both multifidus lumborum and longissimus. The bursts were transformed using a discrete wavelet transform (Daubechies). The band frequencies were compared through mean comparison test with alpha set to 5%. Results Both multifidus lumborum and longissimus muscles had higher intensity in ECC contraction than CON for frequency bands lower than 32 Hz (P < 0.05); meanwhile, there was a higher intensity in CON contraction than ECC for frequency bands higher than 32 or 64 Hz until 256 Hz (P < 0.05). Conclusion For both paravertebral muscles analyzed, discrete wavelet decomposition suggests that during the flexion-relaxation test there is an ECC contraction characterized by low-frequency bands compared with the CON phase characterized by medium- and higher-frequency bands both paravertebral muscles analyzed. The spectral characteristics might be a useful physiological neuromuscular reference to the pathophysiology adaptations of the paravertebral muscle contraction.
dc.fuente.origenWOS
dc.identifier.doi10.1007/s11332-022-00984-3
dc.identifier.eissn1825-1234
dc.identifier.issn1824-7490
dc.identifier.urihttps://doi.org/10.1007/s11332-022-00984-3
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/92620
dc.identifier.wosidWOS:000830386200002
dc.issue.numero3
dc.language.isoen
dc.pagina.final917
dc.pagina.inicio909
dc.revistaSport sciences for health
dc.rightsacceso restringido
dc.subjectLumbar joint
dc.subjectSurface electromyography
dc.subjectDiscrete wavelet
dc.titleEccentric and concentric contraction of multifidus lumborum and longissimus muscles during flexion-relaxation test using discrete wavelet transform
dc.typeartículo
dc.volumen19
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
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