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The Eect of Spinal Manipulation on the Electrophysiological and Metabolic Properties of the Tibialis Anterior Muscle

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The Eect of Spinal Manipulation on the Electrophysiological and Metabolic Properties of the Tibialis Anterior Muscle. / Imran, Niazi; Kamavuako, Ernest; Holt, Kelly; Janjua, Taha Al Muhammadee; Kumari, Nitika ; Amjad, Imran ; Haavik, Heidi .

In: Healthcare (Basel, Switzerland), Vol. 8, No. 548, 10.12.2020.

Research output: Contribution to journalArticlepeer-review

Harvard

Imran, N, Kamavuako, E, Holt, K, Janjua, TAM, Kumari, N, Amjad, I & Haavik, H 2020, 'The Eect of Spinal Manipulation on the Electrophysiological and Metabolic Properties of the Tibialis Anterior Muscle', Healthcare (Basel, Switzerland), vol. 8, no. 548.

APA

Imran, N., Kamavuako, E., Holt, K., Janjua, T. A. M., Kumari, N., Amjad, I., & Haavik, H. (2020). The Eect of Spinal Manipulation on the Electrophysiological and Metabolic Properties of the Tibialis Anterior Muscle. Healthcare (Basel, Switzerland), 8(548).

Vancouver

Imran N, Kamavuako E, Holt K, Janjua TAM, Kumari N, Amjad I et al. The Eect of Spinal Manipulation on the Electrophysiological and Metabolic Properties of the Tibialis Anterior Muscle. Healthcare (Basel, Switzerland). 2020 Dec 10;8(548).

Author

Imran, Niazi ; Kamavuako, Ernest ; Holt, Kelly ; Janjua, Taha Al Muhammadee ; Kumari, Nitika ; Amjad, Imran ; Haavik, Heidi . / The Eect of Spinal Manipulation on the Electrophysiological and Metabolic Properties of the Tibialis Anterior Muscle. In: Healthcare (Basel, Switzerland). 2020 ; Vol. 8, No. 548.

Bibtex Download

@article{4d94ee01544f4133a8d91f80d0ade138,
title = "The Eect of Spinal Manipulation on the Electrophysiological and Metabolic Properties of the Tibialis Anterior Muscle",
abstract = "There is growing evidence showing that spinal manipulation increases muscle strength in healthy individuals as well as in people with some musculoskeletal and neurological disorders. However, the underlying mechanism by which spinal manipulation changes muscle strength is less clear. This study aimed to assess the eects of a single spinal manipulation session on the electrophysiological and metabolic properties of the tibialis anterior (TA) muscle. Maximum voluntary contractions (MVC) of the ankle dorsiflexors, high-density electromyography (HDsEMG), intramuscular EMG, and near-infrared spectroscopy (NIRS) were recorded from the TA muscle in 25 participants with low level recurring spinal dysfunction using a randomized controlled crossover design. The following outcomes: motor unit discharge rate (MUDR), strength (force at MVC), muscle conduction velocity (CV), relative changes in oxy- and deoxyhemoglobin were assessed pre and post a spinal manipulation intervention and passive movement control. Repeated measures ANOVA was used to assess within and between-group differences. Following the spinal manipulation intervention, there was a significant increase in MVC (p = 0.02; avg 18.87 ± 28.35%) and a significant increase in CV in both the isometric steady-state (10% of MVC) contractions (p < 0.01; avg 22.11 ± 11.69%) and during the isometric ramp (10% of MVC) contractions (p < 0.01; avg 4.52 ± 4.58%) compared to the control intervention. There were no other significant findings. The observed TA strength and CV increase, without changes in MUDR, suggests that the strength changes observed following spinal manipulation are, in part, due to increased recruitment of larger, higher threshold motor units. Further research needs to investigate the longer term and potential functional effects of spinal manipulation in various patients who may benefit from improved muscle function and greater motor unit recruitment.",
keywords = "spinal manipulation, maximum voluntary contraction;, conduction velocity, near-infrared spectroscopy",
author = "Niazi Imran and Ernest Kamavuako and Kelly Holt and Janjua, {Taha Al Muhammadee} and Nitika Kumari and Imran Amjad and Heidi Haavik",
year = "2020",
month = dec,
day = "10",
language = "English",
volume = "8",
journal = "Healthcare (Basel, Switzerland)",
issn = "2227-9032",
publisher = "MDPI",
number = "548",

}

RIS (suitable for import to EndNote) Download

TY - JOUR

T1 - The Eect of Spinal Manipulation on the Electrophysiological and Metabolic Properties of the Tibialis Anterior Muscle

AU - Imran, Niazi

AU - Kamavuako, Ernest

AU - Holt, Kelly

AU - Janjua, Taha Al Muhammadee

AU - Kumari, Nitika

AU - Amjad, Imran

AU - Haavik, Heidi

PY - 2020/12/10

Y1 - 2020/12/10

N2 - There is growing evidence showing that spinal manipulation increases muscle strength in healthy individuals as well as in people with some musculoskeletal and neurological disorders. However, the underlying mechanism by which spinal manipulation changes muscle strength is less clear. This study aimed to assess the eects of a single spinal manipulation session on the electrophysiological and metabolic properties of the tibialis anterior (TA) muscle. Maximum voluntary contractions (MVC) of the ankle dorsiflexors, high-density electromyography (HDsEMG), intramuscular EMG, and near-infrared spectroscopy (NIRS) were recorded from the TA muscle in 25 participants with low level recurring spinal dysfunction using a randomized controlled crossover design. The following outcomes: motor unit discharge rate (MUDR), strength (force at MVC), muscle conduction velocity (CV), relative changes in oxy- and deoxyhemoglobin were assessed pre and post a spinal manipulation intervention and passive movement control. Repeated measures ANOVA was used to assess within and between-group differences. Following the spinal manipulation intervention, there was a significant increase in MVC (p = 0.02; avg 18.87 ± 28.35%) and a significant increase in CV in both the isometric steady-state (10% of MVC) contractions (p < 0.01; avg 22.11 ± 11.69%) and during the isometric ramp (10% of MVC) contractions (p < 0.01; avg 4.52 ± 4.58%) compared to the control intervention. There were no other significant findings. The observed TA strength and CV increase, without changes in MUDR, suggests that the strength changes observed following spinal manipulation are, in part, due to increased recruitment of larger, higher threshold motor units. Further research needs to investigate the longer term and potential functional effects of spinal manipulation in various patients who may benefit from improved muscle function and greater motor unit recruitment.

AB - There is growing evidence showing that spinal manipulation increases muscle strength in healthy individuals as well as in people with some musculoskeletal and neurological disorders. However, the underlying mechanism by which spinal manipulation changes muscle strength is less clear. This study aimed to assess the eects of a single spinal manipulation session on the electrophysiological and metabolic properties of the tibialis anterior (TA) muscle. Maximum voluntary contractions (MVC) of the ankle dorsiflexors, high-density electromyography (HDsEMG), intramuscular EMG, and near-infrared spectroscopy (NIRS) were recorded from the TA muscle in 25 participants with low level recurring spinal dysfunction using a randomized controlled crossover design. The following outcomes: motor unit discharge rate (MUDR), strength (force at MVC), muscle conduction velocity (CV), relative changes in oxy- and deoxyhemoglobin were assessed pre and post a spinal manipulation intervention and passive movement control. Repeated measures ANOVA was used to assess within and between-group differences. Following the spinal manipulation intervention, there was a significant increase in MVC (p = 0.02; avg 18.87 ± 28.35%) and a significant increase in CV in both the isometric steady-state (10% of MVC) contractions (p < 0.01; avg 22.11 ± 11.69%) and during the isometric ramp (10% of MVC) contractions (p < 0.01; avg 4.52 ± 4.58%) compared to the control intervention. There were no other significant findings. The observed TA strength and CV increase, without changes in MUDR, suggests that the strength changes observed following spinal manipulation are, in part, due to increased recruitment of larger, higher threshold motor units. Further research needs to investigate the longer term and potential functional effects of spinal manipulation in various patients who may benefit from improved muscle function and greater motor unit recruitment.

KW - spinal manipulation

KW - maximum voluntary contraction;

KW - conduction velocity

KW - near-infrared spectroscopy

M3 - Article

VL - 8

JO - Healthcare (Basel, Switzerland)

JF - Healthcare (Basel, Switzerland)

SN - 2227-9032

IS - 548

ER -

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