VYZVANNAYa BIOELEKTRIChESKAYa AKTIVNOST' MYShTs NIZhNIKh KONEChNOSTEYU BOL'NYKh GONARTROZOM

Comparative evaluation of functional lower limb muscle status depending on gonarthrosis severity and technique of surgical intervention was performed using the results of stimulation electromyography (M-responses). Data obtained showed that the changes of evoked bioelectrical activity in lower limb muscles depend to a great degree on the initial status (gonarthrosis grade) than on the technique of surgical intervention.

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New insights into the organophosphate-induced intermediate syndrome

Archives of Industrial Hygiene and Toxicology ◽

10.2478/aiht-2018-69-3121 ◽

2018 ◽

Vol 69 (2) ◽

pp. 191-195

Author(s):

Raluca Ecaterina Haliga ◽

Bianca Codrina Morarasu ◽

Manuela Ursaru ◽

Viorica Irimioaia ◽

Laurentiu Sorodoc

Keyword(s):

Muscle Weakness ◽

Lower Limb ◽

Cranial Nerves ◽

Clinical Manifestations ◽

Neurological Complications ◽

Lower Limb Muscle ◽

Limb Muscle ◽

Remarkable Feature ◽

Lower Limb Muscles ◽

Limb Muscles

AbstractAcute organophosphate (OP) poisoning can be deadlier than any other type of chemical poisoning. So far, only a few cases have been described that include extensive neurological complications. We present an outstanding case of severe oral OP poisoning with intermediate syndrome developed on the fourth day after hospital admission. The clinical picture involved weakness of the proximal upper and lower limb muscles and several muscles supplied by motor cranial nerves, but, what is peculiar, the distal upper and lower limb muscles were also affected (forearms, hands, legs, and feet). To our knowledge, this is a unique presentation, as lower limb muscle weakness was reported only in the context of delayed polyneuropathy. Another remarkable feature was the involvement of six of the twelve cranial nerves, which makes this case of intermediate syndrome the first with such a spread of muscle weakness and provides new insights into the polymorphic clinical manifestations of acute OP poisoning.

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Characteristics of Lower Limb Muscle Activity in Elderly Persons After Ergometric Exercise

Gerontology and Geriatric Medicine ◽

10.1177/2333721420979800 ◽

2020 ◽

Vol 6 ◽

pp. 233372142097980

Author(s):

Kenichi Kaneko ◽

Hitoshi Makabe ◽

Kazuyuki Mito ◽

Kazuyoshi Sakamoto ◽

Yoshiya Kawanori ◽

...

Keyword(s):

Lower Limb ◽

Muscle Activity ◽

The Elderly ◽

Elderly Subjects ◽

Elderly Persons ◽

Lower Limb Muscle ◽

Limb Muscle ◽

Lower Limb Muscles ◽

The Mean ◽

Young Subjects

This study examined the characteristics of lower limb muscle activity in elderly persons after ergometric pedaling exercise for 1 month. To determine the effect of the exercise, surface electromyography (SEMG) of lower limb muscles was subjected to Daubechies-4 wavelet transformation, and mean wavelet coefficients were compared with the pre-exercise coefficients and the post-exercise coefficients in each wavelet level. The characteristics of muscle activity after pedaling exercise were also compared between the elderly subjects and young subjects. For the elderly subjects, the mean wavelet coefficients were significantly decreased in the tibialis anterior and the gastrocnemius medialis at wavelet levels of 3, 4, and 5 (125–62.5, 62.5–31.25, and 31.25–15.625 Hz, respectively), by pedaling exercise. However, the mean power of wavelet levels of 2 and 3 (250–125 and 125–62.5 Hz) within the rectus femoris and the biceps femoris were significantly increased in the young subjects. The effect of pedaling exercise is different from the effects of heavy-resistance training. It was suggested that the muscle coordination, motor unit (MU) firing frequency, and firing fiber type of lower limb muscles are changed with the different characteristics between elderly and young persons by pedaling exercise for 1 month.

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Effect of Garment Pressure on Lower Limb Muscle Activity during Running

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.175-176.832 ◽

2011 ◽

Vol 175-176 ◽

pp. 832-836 ◽

Cited By ~ 1

Author(s):

Ya Ning Li ◽

A Ming Lu ◽

Xiao Qun Dai ◽

Jin Ao Chen ◽

Xiao Wen Zhao

Keyword(s):

Lower Limb ◽

Muscle Activity ◽

Blood Circulation ◽

Limb Muscle ◽

Sports Performance ◽

Healthy Male ◽

Lower Limb Muscles ◽

Male College ◽

Limb Muscles ◽

The Right

Recently, it has been reported that suitable garment pressure contributes to accelerating human blood circulation, improving sports performance and alleviating sports fatigue. In this study, effect of pressure exerted by knee-high gradient compression socks (GCS) on the lower limb muscles was investigated. Two healthy male college students volunteered to participate in this study. They were asked to run on a treadmill at a speed of 10 km/h with a GCS worn on one leg and a usual sports sock worn on the other leg until being tired out. During running, the surface electromyography (sEMG) of two lower limb muscles —— gastrocnemius medialis of the right leg (R-GM) and the left leg (L-GM) was recorded simultaneously. It was found that: pressure exerted on the lower limb by GCS gradually decreased from ankle to below-knee; GCS pressure helped to reduce muscle oscillation; wearing GCS seemed to help to reduce muscle fatigue during running.

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A Semi-recumbent Eccentric Cycle Ergometer Instrumented to Isolate Lower Limb Muscle Contractions to the Appropriate Phase of the Pedal Cycle

Frontiers in Physiology ◽

10.3389/fphys.2021.756805 ◽

2021 ◽

Vol 12 ◽

Author(s):

Joel A. Walsh ◽

Darryl J. McAndrew ◽

Douglas J. Henness ◽

Jonathan Shemmell ◽

Dominic Cuicuri ◽

...

Keyword(s):

Muscle Contraction ◽

Lower Limb ◽

Muscle Activation ◽

Cycle Ergometer ◽

Lower Limb Muscle ◽

Limb Muscle ◽

Direct Drive ◽

Servo Drive ◽

Muscle Activation Patterns ◽

Lower Limb Muscles

Eccentric (ECC) cycling is used in rehabilitation and sports conditioning settings. We present the construction and mode of operation of a custom-built semi-recumbent ECC cycle designed to limit the production of lower limb muscle activity to the phase of the pedal cycle known to produce ECC contractions. A commercially available semi-recumbent frame and seat (Monarch, 837E Semi-recumbent Bike, Sweden) were used to assemble the ergometer. An electrical drive train system was constructed using individual direct drive servo motors. To avoid active muscle activation occurring during the non-ECC pedaling phase of cycling, a “trip” mechanism was integrated into the drivetrain system using a servo-driven regenerative braking mechanism based on the monitoring of the voltage produced over and above a predetermined threshold produced by the motors. The servo drive internal (DC bus) voltage is recorded and internally monitored during opposing (OPP) and non-opposing (N-OPP) phases of the pedal cycle. To demonstrate that the cycle functions as desired and stops or “trips” when it is supposed to, we present average (of 5 trials) muscle activation patterns of the principal lower limb muscles for regular ECC pedal cycles in comparison with one pedal cycle during which the muscles activated outside the desired phase of the cycle for a sample participant. This semi-recumbent ECC cycle ergometer has the capacity to limit the occurrence of muscle contraction only to the ECC phase of cycling. It can be used to target that mode of muscle contraction more precisely in rehabilitation or training studies.

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Pengaruh Latihan Range of Motion (ROM) Aktif Terhadap Peningkatan Kekuatan Otot Ekstremitas Bawah Lansia

Real in Nursing Journal ◽

10.32883/rnj.v2i3.564 ◽

2019 ◽

Vol 2 (3) ◽

pp. 118

Author(s):

Adriani Adriani ◽

Nurfatma Sary

Keyword(s):

Muscle Strength ◽

Range Of Motion ◽

Lower Limb ◽

Exercise Program ◽

The Elderly ◽

Lower Limb Muscle ◽

Limb Muscle ◽

Knee Region ◽

Lower Limb Muscles ◽

Active Range Of Motion

<p>Musculoskeletal system disorders of weakness in the muscles of the elderly are common. Actions that can be taken to reduce complaints of the elderly are with range of motion (ROM) exercises. The purpose of this study was to determine the effect of active range of motion (ROM) exercises on increasing the strength of lower limb muscles in the elderly. Pre-experimental research design with one group pre-test and post-test. By means of purposive sampling with 6 respondents. Giving intervention as much as 6 times exercise for 3 weeks with a frequency of 2 times a day . It takes 10 minutes with 3 repetitions of movements. Analysis was performed by paired dependent T-test samples. The results showed that the average lower limb muscle strength in the elderly before active ROM exercises were the hip region = 3.03317, the knee region = 3.44433, the ankle region = 3.24300, the toe region = 3.31950. While the average lower limb muscle strength after active ROM exercises are the hip region = 3.22117, knee region = 3.76367, ankle region = 3.51383, toe area = 3.86800, with hip value p = 0.028, knee p = 0.002, ankle p = 0.002, toe p = 0,000. Based on the results of the study it can be concluded that there is an effect of active range of motion (ROM) exercises on increasing muscle strength in the elderly. This research is expected to be a consideration for the elderly orphanages in order to make the range of motion (ROM) as an exercise program to increase muscle strength in the elderly.</p>

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Mapping the limb muscle motor points for targeted administration of botulinum toxin in the treatment of focal and segmental spasticity

Neurology neuropsychiatry Psychosomatics ◽

10.14412/2074-2711-2020-6-61-70 ◽

2020 ◽

Vol 12 (6) ◽

pp. 61-70

Author(s):

A. P. Kovalenko ◽

K. A. Sinelnikov ◽

V. D. Shamigulov ◽

N. N. Akhmedov ◽

E. M. Shamina

Keyword(s):

Lower Limb ◽

Staining Technique ◽

Biological Action ◽

Lower Limb Muscle ◽

Limb Muscle ◽

Anatomical Dissection ◽

Lower Limb Muscles ◽

Anatomical Localization ◽

Sihler’S Staining ◽

Rehabilitation Measures

Spasticity treatment remains an urgent problem of modern neurorehabilitation. The targeted injection of botulinum neurotoxin (BoNT) into the muscle motor points (MPs) is gaining more and more popularity. But there are insufficient data on the position of MPs, while a MP search methodology has not been worked out yet. Most information about MPs has been obtained on cadaveric material using anatomical dissection or Sihler’s staining technique. Clinical data on the targeted injection of BoNT into the MPs are contradictory, which may be due to the inaccurate determination of their position.Objective: to verify upper and lower limb muscle MPs through electromyography (EMG).Patients and methods. Forty healthy volunteers were examined and underwent anthropometric assessment. Upper and lower limb muscle projections were completely scanned using EMG and ultrasound.Results and discussion. The anatomical localization of MPs in the upper and lower limb muscles involved in spasticity patterns was determined. The position of MPs was found to populationally identical, to have a slight deviation associated with the limb length, and to be unrelated to gender, age, and limb dominance. Original tables and maps for limb MP localization were created.Conclusion. The findings can enhance the efficiency of BoNT administration and improve the quality of rehabilitation measures, since the use of reliable information on the position of MPs will allow targeted BoNT injection in the immediate vicinity of the site of biological action. In clinical practice, this opens a window of opportunity for the early initiation of rehabilitation measures aimed at restoring movement.

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