The influence of fatigue and chronic low back pain on muscle recruitment patterns following an unexpected external perturbation
Abstract Background Chronic low back pain (CLBP) has been associated with altered trunk muscle responses as well as increased muscle fatigability. CLBP patients and fatigued healthy subjects could experience similar neuromuscular strategies to attempt to protect the spine. The current study examined...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
BMC
2017-04-01
|
| Series: | BMC Musculoskeletal Disorders |
| Subjects: | |
| Online Access: | http://link.springer.com/article/10.1186/s12891-017-1523-3 |
| _version_ | 1818276379534295040 |
|---|---|
| author | Júlia Jubany Lieven Danneels Rosa Angulo-Barroso |
| author_facet | Júlia Jubany Lieven Danneels Rosa Angulo-Barroso |
| author_sort | Júlia Jubany |
| collection | DOAJ |
| description | Abstract Background Chronic low back pain (CLBP) has been associated with altered trunk muscle responses as well as increased muscle fatigability. CLBP patients and fatigued healthy subjects could experience similar neuromuscular strategies to attempt to protect the spine. The current study examined muscle activation differences between healthy and CLBP subjects following a perturbation. In addition, the possible role of muscle fatigue was evaluated by investigating the healthy control subjects in a non-fatigued and a fatigued condition. Both experiments were combined to evaluate possible similar strategies between CLBP and fatigued samples. Methods Cross-sectional study where 24 CLBP subjects and 26 healthy subjects were evaluated. Both groups (CLBP vs. healthy) and both conditions (non-fatigued and a fatigued condition) were evaluated while a weight was suddenly dropped on a held tray. Erector spinae, multifidus, obliques and biceps brachii were recorded using surface electromyography. Variables describing the bursts timing and variables describing the amount of muscle activity (number of bursts and amplitude increase) post impact were studied. The analysis between groups and conditions was carried out using ANOVAs with repeated measurements for the muscle factor. Results CLBP subjects reacted similarly to healthy subjects regarding muscle activity post impact. However, the CLBP group showed temporal characteristics of muscle activity that were in between the fatigued and non-fatigued healthy group. Clear differences in muscle activity were displayed for healthy subjects. Fatigued healthy subjects presented more reduced activity after impact (upper limb and trunk muscles) than non-fatigued healthy subjects and different temporal characteristic in the same way than CLBP patients. This same temporal characteristic with CLBP and healthy fatigued people was a delay of the first burst of muscle activity after impact. Conclusion Though similar muscle pattern existed between CLBP and healthy people, CLBP temporal characteristics of muscle activity showed a pattern in between healthy people and fatigued healthy people. While the temporal muscle pattern dysfunction used by CLBP subjects could be related to maladaptive patterns, temporal and muscle activity characteristics used by healthy fatigued people may lead to back injuries. |
| first_indexed | 2024-12-12T22:44:43Z |
| format | Article |
| id | doaj.art-6df4299241274b37b5a509ad92289624 |
| institution | Directory Open Access Journal |
| issn | 1471-2474 |
| language | English |
| last_indexed | 2024-12-12T22:44:43Z |
| publishDate | 2017-04-01 |
| publisher | BMC |
| record_format | Article |
| series | BMC Musculoskeletal Disorders |
| spelling | doaj.art-6df4299241274b37b5a509ad922896242022-12-22T00:09:14ZengBMCBMC Musculoskeletal Disorders1471-24742017-04-0118111010.1186/s12891-017-1523-3The influence of fatigue and chronic low back pain on muscle recruitment patterns following an unexpected external perturbationJúlia Jubany0Lieven Danneels1Rosa Angulo-Barroso2Institut Nacional d’Educació Física de Catalunya, (INEFC), University of BarcelonaDepartment of Rehabilitation Sciences and Physiotherapy, Faculty of Medicine and Rehabilitation Sciences, Ghent UniversityInstitut Nacional d’Educació Física de Catalunya, (INEFC), University of BarcelonaAbstract Background Chronic low back pain (CLBP) has been associated with altered trunk muscle responses as well as increased muscle fatigability. CLBP patients and fatigued healthy subjects could experience similar neuromuscular strategies to attempt to protect the spine. The current study examined muscle activation differences between healthy and CLBP subjects following a perturbation. In addition, the possible role of muscle fatigue was evaluated by investigating the healthy control subjects in a non-fatigued and a fatigued condition. Both experiments were combined to evaluate possible similar strategies between CLBP and fatigued samples. Methods Cross-sectional study where 24 CLBP subjects and 26 healthy subjects were evaluated. Both groups (CLBP vs. healthy) and both conditions (non-fatigued and a fatigued condition) were evaluated while a weight was suddenly dropped on a held tray. Erector spinae, multifidus, obliques and biceps brachii were recorded using surface electromyography. Variables describing the bursts timing and variables describing the amount of muscle activity (number of bursts and amplitude increase) post impact were studied. The analysis between groups and conditions was carried out using ANOVAs with repeated measurements for the muscle factor. Results CLBP subjects reacted similarly to healthy subjects regarding muscle activity post impact. However, the CLBP group showed temporal characteristics of muscle activity that were in between the fatigued and non-fatigued healthy group. Clear differences in muscle activity were displayed for healthy subjects. Fatigued healthy subjects presented more reduced activity after impact (upper limb and trunk muscles) than non-fatigued healthy subjects and different temporal characteristic in the same way than CLBP patients. This same temporal characteristic with CLBP and healthy fatigued people was a delay of the first burst of muscle activity after impact. Conclusion Though similar muscle pattern existed between CLBP and healthy people, CLBP temporal characteristics of muscle activity showed a pattern in between healthy people and fatigued healthy people. While the temporal muscle pattern dysfunction used by CLBP subjects could be related to maladaptive patterns, temporal and muscle activity characteristics used by healthy fatigued people may lead to back injuries.http://link.springer.com/article/10.1186/s12891-017-1523-3ElectromyographyFatigueMuscle patternLow back painSemi-squat |
| spellingShingle | Júlia Jubany Lieven Danneels Rosa Angulo-Barroso The influence of fatigue and chronic low back pain on muscle recruitment patterns following an unexpected external perturbation BMC Musculoskeletal Disorders Electromyography Fatigue Muscle pattern Low back pain Semi-squat |
| title | The influence of fatigue and chronic low back pain on muscle recruitment patterns following an unexpected external perturbation |
| title_full | The influence of fatigue and chronic low back pain on muscle recruitment patterns following an unexpected external perturbation |
| title_fullStr | The influence of fatigue and chronic low back pain on muscle recruitment patterns following an unexpected external perturbation |
| title_full_unstemmed | The influence of fatigue and chronic low back pain on muscle recruitment patterns following an unexpected external perturbation |
| title_short | The influence of fatigue and chronic low back pain on muscle recruitment patterns following an unexpected external perturbation |
| title_sort | influence of fatigue and chronic low back pain on muscle recruitment patterns following an unexpected external perturbation |
| topic | Electromyography Fatigue Muscle pattern Low back pain Semi-squat |
| url | http://link.springer.com/article/10.1186/s12891-017-1523-3 |
| work_keys_str_mv | AT juliajubany theinfluenceoffatigueandchroniclowbackpainonmusclerecruitmentpatternsfollowinganunexpectedexternalperturbation AT lievendanneels theinfluenceoffatigueandchroniclowbackpainonmusclerecruitmentpatternsfollowinganunexpectedexternalperturbation AT rosaangulobarroso theinfluenceoffatigueandchroniclowbackpainonmusclerecruitmentpatternsfollowinganunexpectedexternalperturbation AT juliajubany influenceoffatigueandchroniclowbackpainonmusclerecruitmentpatternsfollowinganunexpectedexternalperturbation AT lievendanneels influenceoffatigueandchroniclowbackpainonmusclerecruitmentpatternsfollowinganunexpectedexternalperturbation AT rosaangulobarroso influenceoffatigueandchroniclowbackpainonmusclerecruitmentpatternsfollowinganunexpectedexternalperturbation |