scholarly journals Effect of Various Support Surfaces on Activation of Tibialis Anterior, Peroneus Longus, and Gastrocnemius Muscles during Squat Performance

2019 ◽  
Vol 3 (2) ◽  
pp. 31-37
Author(s):  
Se-ra Yoon ◽  
Ji-won Kim ◽  
Da-eun Song ◽  
Bo-ram Lee ◽  
Jung-hyun Lee ◽  
...  
Keyword(s):  
Tibialis Anterior ◽  
Peroneus Longus ◽  
Support Surfaces ◽  
Gastrocnemius Muscles

The Correspondence Between Some Motor Points and Acupuncture Loci

1975 ◽  
Vol 03 (04) ◽  
pp. 347-358 ◽  
Author(s):  
Y. King Liu ◽  
Maria Varela ◽  
Robert Oswald
Keyword(s):  
Statistical Analysis ◽  
Tibialis Anterior ◽  
Double Blind Study ◽  
Vastus Medialis ◽  
Abductor Pollicis Brevis ◽  
Double Blind ◽  
Orbicularis Oculi ◽  
Peroneus Longus ◽  
Uv Illumination ◽  
Splenius Capitis

A double blind study was conducted to establish the possible correspondence between some motor points and acupuncture loci. THe protocol calls for the acupuncturist marking the first group of volunteers with invisible ink at the acupuncture loci. Then the motor points in the same volunteer are found by electrodiagnosis. The error is made visible by UV illumination. In the second group, the procedure is reversed. A statistical analysis of the error yields the following classes of correspondences: (a) Excellent: 1st Dorsal Interosseus (hand) = LI-4; Abductor Pollicis Brevis = Lu-10; Abductor Minimi Digiti = SI-4; 1st Dorsal Interosseus (foot)=LI-3; Tibialis Anterior = Curious Locus; Orbicularis Oculi = GB-I; Frontalis = GB-14; Splenius Capitis = GB-20; Sternocleidomastoid = LI-18; Semi-Spinalis Capitis = BI-10. (b) Good: Opponens Pollicis = Curious Locus; Peroneus Longus = Curious Locus; Flexior Digitorum Longus = Ki-3 (Ki-6); Trapezius (upper) = GB-21; Rectus Abdominis=Ki-15; Vastus Medialis = Sp-10.

Development of a Rehabilitation and Training Device Considering the Ankle Degree of Freedom

2020 ◽  
Vol 32 (3) ◽  
pp. 673-682
Author(s):  
Asaki Akagi ◽  
Satoki Tsuichihara ◽  
Shinichi Kosugi ◽  
Hiroshi Takemura ◽  
◽  
...  
Keyword(s):  
Degrees Of Freedom ◽  
Physical Therapists ◽  
Plantar Flexion ◽  
Muscular Activity ◽  
Isokinetic Contraction ◽  
Peroneus Longus ◽  
Anterior Tibial ◽  
Gastrocnemius Muscles ◽  
And Control ◽  
And Inversion

While the number of people who need rehabilitation has been increasing because of the aging population, there are only a limited number of physical therapists engaged in rehabilitation, making it difficult to perform rehabilitation at a sufficient level. In this situation, various devices have been developed to replace physical therapists. However, no rehabilitation devices that can respond to the complicated degrees of freedom of an ankle joint complex (AJC) are commercially available. In the present study, we developed an AJC rehabilitation device using a Stewart platform parallel link mechanism. Using the device, we aim to measure and control the AJC with six degrees of freedom so that complicated composite motions of the AJC can be realized. To evaluate the device’s usefulness, we investigated how the composite motion generated by moving the AJC along the trajectory the device reproduced could influence a crural muscle. Muscular activities of the anterior tibial, soleus, and gastrocnemius muscles, generated by a composite motion of plantar flexion and inversion, had a similar feature to those generated by plantar flexion. However, the muscular activity of the peroneus longus muscle generated in the composite motion was significantly different from that generated only in plantar flexion. In the composite motion of plantar flexion and inversion, based on the knowledge that activity to develop only back muscles while suppressing muscular activities of the anterior tibial and peroneus longus muscles is possible. Based on the knowledge, the device was used to perform isokinetic contraction for evaluating the device’s usefulness for muscular training. We found a difference between the combination of active muscles during the composite motion and that during plantar flexion. A load can be applied to different muscles depending on the composite motion, which indicates that the device can be suitable for rehabilitation or training with high degrees of freedom.

Effects of Non-Rhythmical Paroxysmal Stimulation on EEG-EMG Coherence during Still Standing in Humans

2013 ◽  
Vol 749 ◽  
pp. 418-422
Author(s):  
Jian Feng Sui ◽  
Cristopher Young ◽  
Lin Hong Ji
Keyword(s):  
Cortical Neurons ◽  
Healthy Subjects ◽  
Tibialis Anterior ◽  
Surface Emg ◽  
Motor Output ◽  
Neuronal Oscillations ◽  
The Subject ◽  
Gastrocnemius Muscles ◽  
Electroencephalogram Eeg

In many previous studies, neuronal oscillations in humans under 1530 Hz activity have been observed, correlated with rhythmical motor output. In this present study, we observed the influence of non-rhythmical paroxysmal stimulation on cortical neurons by analyzing the coherence between electroencephalogram (EEG) and electromyogram (EMG). The non-rhythmical stimulation was performed by using this method that the braced force of the subjects one foot was released suddenly when the subject was standing still. The surface EMG signals from the tibialis anterior and the gastrocnemius muscles of 10 healthy subjects were recorded, and the cortical activities of contralateral cortical sensorimotor areas were also recorded simultaneously by EEG during the experiment. The data indicates that the range (10-25Hz) synchronization represents a state of the cortico-muscular network when the balance is broken which the braced force of subjects one foot is released suddenly.

RELIABILITY OF THE PERONEUS LONGUS, TIBIALIS ANTERIOR AND SOLEUS HOFFMANN REFLEX IN MAN

2001 ◽  
Vol 33 (5) ◽  
pp. S196
Author(s):  
B A. Krause ◽  
C D. Ingersoll ◽  
J T. Hopkins ◽  
M L. Cordova ◽  
J E. Edwards
Keyword(s):  
Tibialis Anterior ◽  
Hoffmann Reflex ◽  
Peroneus Longus

Effects of In-Shoe Midsole Cushioning on Leg Muscle Balance and Co-Contraction with Increased Heel Height During Walking

2018 ◽  
Vol 108 (6) ◽  
pp. 449-457 ◽  
Author(s):  
Kit-lun Yick ◽  
Ka-lai Yeung ◽  
Del P. Wong ◽  
Yee-nee Lam ◽  
Sun-pui Ng
Keyword(s):  
Muscle Activity ◽  
Tibialis Anterior ◽  
Heel Strike ◽  
Acute Effects ◽  
Lateral Gastrocnemius ◽  
Heel Height ◽  
Muscle Balance ◽  
Leg Muscle ◽  
Gastrocnemius Muscles ◽  
Shoe Wear

Background: The midsole is an essential assembly of footwear for retaining the shape of the shoe, delivering support to the foot, and serving as a cushioning and stability device for walking. To improve leg muscle balance and muscle co-contraction, we propose a new midsole design for high heels with different hardness levels at the forefoot region. Methods: Five healthy women participated in the study, with a mean ± SD age of 21.80 ± 4.09 years, and duration of high-heeled shoe wear of 5.20 ± 4.09 years. Two midsole conditions, control and multiple-hardness midsole (MHM), with heel heights of 2 (flat), 5, and 8 cm were used. The main outcome measures were to examine the acute effects of MHM by electromyography on muscle activity balance and co-contraction at varying heel heights during shuttle walk. Results: Use of the MHM significantly reduced the muscle activity ratio between the medial and lateral gastrocnemius muscles (P = .043) during push-off to heel strike with a heel height of 5 cm (−22.74%) and heel strike to midstance with a heel height of 8 cm (−22.26%). The increased co-contraction indices of the tibialis anterior–peroneus longus muscles (14.35% with an 8-cm heel height) and tibialis anterior–soleus muscles (15.18% with a 5-cm heel height) are significant (P = .043), with a large effect size (d = 0.8). Conclusions: These results deliver important implications in advancing the engineering of MHM design without changing the in-shoe volume to enhance leg muscle balance and co-contraction during walking.

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