Effects of hanger reflex on the cervical muscular activation and function: A surface electromyography assessment

Wang, Dian; Liu, Baoge

doi:10.3389/fphys.2022.1006179

Cited by 3 publications

(2 citation statements)

References 23 publications

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“…All the participants included in this study were right-handed. The difference in the UT and SCM muscle activity was also observed by Wang and Liu [36] during bilateral hanger reflex, as well as without it.…”

Section: Discussionsupporting

confidence: 59%

Symmetry of the Neck Muscles’ Activity in the Electromyography Signal during Basic Motion Patterns

Figas

Hadamus

Błażkiewicz

et al. 2023

Sensors

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The activity of muscles during motion in one direction should be symmetrical when compared to the activity of the contralateral muscles during motion in the opposite direction, while symmetrical movements should result in symmetrical muscle activation. The literature lacks data on the symmetry of neck muscle activation. Therefore, this study aimed to analyse the activity of the upper trapezius (UT) and sternocleidomastoid (SCM) muscles at rest and during basic motions of the neck and to determine the symmetry of the muscle activation. Surface electromyography (sEMG) was collected from UT and SCM bilaterally during rest, maximum voluntary contraction (MVC) and six functional movements from 18 participants. The muscle activity was related to the MVC, and the Symmetry Index was calculated. The muscle activity at rest was 23.74% and 27.88% higher on the left side than on the right side for the UT and SCM, respectively. The highest asymmetries during motion were for the SCM for the right arc movement (116%) and for the UT in the lower arc movement (55%). The lowest asymmetry was recorded for extension–flexion movement for both muscles. It was concluded that this movement can be useful for assessing the symmetry of neck muscles’ activation. Further studies are required to verify the above-presented results, determine muscle activation patterns and compare healthy people to patients with neck pain.

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Section: Discussionsupporting

confidence: 59%

Symmetry of the Neck Muscles’ Activity in the Electromyography Signal during Basic Motion Patterns

Figas

Hadamus

Błażkiewicz

et al. 2023

Sensors

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“…The study showed a significant increase in the FRR value of patients after training, suggesting that the FRR of patients with CNLBP was effectively corrected. [ 28 ] One reason for this is that Bduanjin training can enhance the recruitment potential of the erector spine muscle during flexion and improve its reactivity and contractility. Therefore, there is a significant increase in AEMG during flexion and extension.…”

Section: Discussionmentioning

confidence: 99%

Effects of Baduanjin exercise on patients with chronic nonspecific low back pain and surface electromyography signs of erector spinal muscle: A randomized controlled trial

Yang,

Huang,

et al. 2023

Medicine

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Background: Chronic nonspecific low back pain (CNLBP) is a common disease usually with lower back muscle fatigue and injuries that may contribute to lumbar muscle imbalance and pain recurrence. This study aimed to examine the effectiveness of Baduanjin exercise on patients of CNLBP and to assess its impact on the surface electromyographic signals of the lumbar erector spinae muscle. Methods: A total of 60 patients diagnosed with CNLBP were admitted from the Hubei Provincial Hospital of Traditional Chinese Medicine from March 2022 to December 2022. Those patients were randomly allocated into the Baduanjin group (n = 30) or the walking group (n = 30). Both groups received a 4-week intervention, with 5 training sessions per week. The numeric pain rating scale (the minimal clinically important difference = 2.4) and Oswestry Disability Index (the minimal clinically important difference = 13.4), electromyogram signals during lumbar flexion (FLEXAEMG), lumbar extension (EXTAEMG), and maximum lumbar flexion (MAEMG), the ratios of FLEXAEMG to MAEMG and EXTAEMG to MAEMG were collected at Baseline and posttreatment and compared using the Wilcoxon signed-rank test or Mann–Whitney U test. Results: After treatment, the numeric pain rating scale score in the Baduanjin group exhibited a significant decrease compared to baseline (P < .05) and was found to be lower than that of the Walking group (mean difference 2.36; CI 95% −2.323 to −1.742; P = .001). Similarly, the Oswestry disability index in the Baduanjin group demonstrated a reduction compared to baseline (P < .05) and was lower than that of the Walking group (the mean difference 7.59; CI 95% −8.861 to −6.312; P = .001). The FLEXAEMG and EXTAEMG of both groups had a significant increase (P < .05), with the Baduanjin group demonstrating higher levels compared to the Walking group (P < .05). Conversely, the MAEMG of both groups displayed a significant decrease (P < .05), with the Baduanjin group exhibiting lower levels than the Walking group (P < .05). The FLEXAEMG to MAEMG and EXTAEMG to MAEMG in the Baduanjin group increased (P < .05) and were significantly higher than the Walking group (P < .05). Conclusion: Baduanjin exercise has shown to be highly effective in reducing low back pain and in promoting lumber dysfunction, due to its ability to improve the strength and flexibility of the lumbar erector spinae muscle.

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Sustainable Improvement of Anterocollis-type Cervical Dystonia with a Hanger Reflex Device: A Case Report

KOHARA,

HORISAWA,

KAWAMATA

2024

NMC Case Report Journal

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The hanger reflex is an automatic head rotation movement. When individuals wear a wire clothes hanger on the head to compress the frontotemporal region, the head spontaneously rotates toward the compressed side. The device to induce the hanger reflex was first developed for treating rotation-type cervical dystonia, followed by the development of a device for anterocollis-type cervical dystonia. However, there is a lack of comprehensive clinical reports on hanger reflex treatments, especially for anterocollis-type dystonia. We present the case of anterocollis that completely resolved after hanger reflex treatment without any other invasive treatment. In the treatment, patients wear the device on their heads for 30 min once per day. Hanger reflex treatment is an easy, simple, noninvasive, and inexpensiveness approach that may be considered the first choice for cervical dystonia.

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Effects of hanger reflex on the cervical muscular activation and function: A surface electromyography assessment

Cited by 3 publications

References 23 publications

Symmetry of the Neck Muscles’ Activity in the Electromyography Signal during Basic Motion Patterns

Symmetry of the Neck Muscles’ Activity in the Electromyography Signal during Basic Motion Patterns

Effects of Baduanjin exercise on patients with chronic nonspecific low back pain and surface electromyography signs of erector spinal muscle: A randomized controlled trial

Sustainable Improvement of Anterocollis-type Cervical Dystonia with a Hanger Reflex Device: A Case Report

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