H-reflex responses to High-Velocity Low-Amplitude manipulation in asymptomatic adults

Groisman, Sônia; Silva, Luciano; Rocha, Natália Salles da; Hoff, Fabrícia Cristina; Rodrigues, Márcia Elisabeth; Ehlers, João Arthur; Diniz, Leonardo Rios

doi:10.1016/j.ijosm.2014.04.001

Cited by 7 publications

(2 citation statements)

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“…One study examined the effects of spinal manipulation on intersubject variability. Whereas 6 participants showed a reduction in the H-reflex amplitude subsequent to spinal manipulation, 13 others did not exhibit any changes in this parameter [19]. According to the authors, the discrepancy might be due to differences in autonomic tone or technical issues in the spinal manipulation technique.…”

Section: Introductionmentioning

confidence: 90%

Absence of Neuroplastic Changes in the Bilateral H-Reflex Amplitude following Spinal Manipulation with Activator IV

et al. 2022

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Background and Objectives: Chiropractic spinal manipulation is an alternative medical procedure for treating various spinal dysfunctions. Great interest exists in investigating its neuroplastic effects on the central nervous system. Previous studies have found contradictory results in relation to the neuroplastic changes in the H-reflex amplitude as a response to manual spinal manipulation. The discrepancies could be partly due to differences in the unilateral nature of these recordings and/or the variable force exerted in manual techniques applied by distinct chiropractors. Concerning the latter point, the variability in the performance of manual interventions may bias the determination of the significance of changes in H-reflex responses derived from spinal manipulation. To investigate such responses, a chiropractic device can be used to provide more precise and reproducible results. The current contribution aimed to examine whether spinal manipulation with an Activator IV instrument generates neuroplastic effects on the bilateral H-reflex amplitude in dancers and non-dancers. Materials and Methods: A radiograph verified spinal dysfunction in both groups of participants. Since there were significant differences between groups in the mean Hmax values of the H-reflex amplitude before spinal intervention, an assessment was made of the possible dependence of the effects of spinal manipulation with Activator IV on the basal conditions. Results: Ten sessions of spinal manipulation with Activator IV did not cause statistically significant changes in the bilateral H-reflex amplitude (measured as the Hmax/Mmax ratio) in either group. Furthermore, no significant difference was detected in the effects of spinal manipulation between groups, despite their distinct basal H-reflex amplitude. Conclusion: Regarding the therapeutic benefits of a chiropractic adjustment, herein carried out with Activator IV, the present findings suggest that the mechanism of action is not on the monosynaptic H-reflex pathway. Further research is needed to understand the mechanisms involved.

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Section: Introductionmentioning

confidence: 90%

Absence of Neuroplastic Changes in the Bilateral H-Reflex Amplitude following Spinal Manipulation with Activator IV

et al. 2022

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“…Groisman et al examine the effect of high-velocity low-amplitude manipulation on H-reflex responses and found variable responses in individuals. 16 Understanding the physiologic effects of individual techniques used in osteopathic manual treatment is important as it can provide information that helps tailor interventions to the presentations of patients. This is particularly the case when the mechanism of dysfunction or injury is understood and our treatments can thus be intentionally directed at the underlying mechanisms that are contributing to an individual patients' presentation.…”

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confidence: 99%

Results, solutions, and learning: The continuing maturation of osteopathy

Vogel

2014

International Journal of Osteopathic Medicine

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Short-Term Effects of Global Pelvic Manipulation on Knee Joint Position Sense in Asymptomatic Participants: A Double-Blind Randomized Controlled Trial

Paredes

Crasto

Magalhães

et al. 2020

Journal of Manipulative and Physiological Therapeutics

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H-reflex responses to High-Velocity Low-Amplitude manipulation in asymptomatic adults

Cited by 7 publications

References 20 publications

Absence of Neuroplastic Changes in the Bilateral H-Reflex Amplitude following Spinal Manipulation with Activator IV

Absence of Neuroplastic Changes in the Bilateral H-Reflex Amplitude following Spinal Manipulation with Activator IV

Results, solutions, and learning: The continuing maturation of osteopathy

Short-Term Effects of Global Pelvic Manipulation on Knee Joint Position Sense in Asymptomatic Participants: A Double-Blind Randomized Controlled Trial

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