Electrical Stimulation to the Infraspinatus on Hypertrophy and Strength of the Shoulder

2018 ◽  
Vol 39 (11) ◽  
pp. 828-834 ◽  
Author(s):  
Ko Yanase ◽  
Satoshi Hasegawa ◽  
Masatoshi Nakamura ◽  
Taishi Yamauchi ◽  
Satoru Nishishita ◽  
...  
Keyword(s):  
Muscle Thickness ◽  
Control Group ◽  
Muscle Stimulation ◽  
Sectional Area ◽  
Electrical Muscle Stimulation ◽  
Cross Sectional ◽  
Infraspinatus Muscle ◽  
Before And After ◽  
Stimulation Group ◽  
Electrical Muscle

AbstractThe purpose of this study was to determine the effects of six weeks of electrical muscle stimulation (EMS) on the strength and muscle mass of the infraspinatus muscle. Twenty non-athletes (age: 24±3.4 years, height: 171.5±5.6 cm, mass: 65.2±8.1 kg) were randomly classified into two groups, an electrical muscle stimulation group (EMS group) and a control group (CON group). The EMS group completed a total of 18 20– min EMS sessions, three times per week over a period of six weeks, while the CON group received no intervention. The muscle thicknesses of both the infraspinatus and the deltoid muscles, the cross-sectional area (CSA) of the whole infraspinatus muscle, and the isometric and isokinetic peak torques of shoulder external rotations were measured before and after intervention. It was found that the muscle thickness of the superior infraspinatus (Pre 0.92±0.19 cm2, Post 0.99±0.16 cm2, p=0.02) and the CSA (Pre 10.99±1.32 cm2, Post 11.99±1.02 cm2, p=0.03) significantly increased in the EMS group. This study demonstrated that EMS of the infraspinatus muscle over a period of six weeks resulted in hypertrophy of the infraspinatus muscle.

scholarly journals Effect of Abdominal Electrical Muscle Stimulation Training With and Without Superimposed Voluntary Muscular Contraction on Lumbopelvic Control

2020 ◽  
Vol 29 (8) ◽  
pp. 1137-1144
Author(s):  
Ui-Jae Hwang ◽  
Sung-Hoon Jung ◽  
Hyun-A Kim ◽  
Jun-Hee Kim ◽  
Oh-Yun Kwon
Keyword(s):  
Abdominal Wall ◽  
Cross Sectional Area ◽  
Rectus Abdominis ◽  
Muscle Stimulation ◽  
Sectional Area ◽  
Electrical Muscle Stimulation ◽  
Cross Sectional ◽  
Lateral Abdominal Wall ◽  
The Cross ◽  
Electrical Muscle

Context: Electrical muscle stimulation (EMS) was designed for artificial muscle activation or superimposed training. Objectives: To compare the effects of 8 weeks of superimposed technique (ST; application of electrical stimulation during a voluntary muscle action) and EMS on the cross-sectional area of the rectus abdominis, lateral abdominal wall, and on lumbopelvic control. Setting: University research laboratory. Design: Randomized controlled trial. Participants: Fifty healthy subjects were recruited and randomly assigned to either the ST or EMS group. Intervention: The participants engaged with the electrical stimulation techniques (ST or EMS) for 8 weeks. Main Outcome Measures: In all participants, the cross-sectional area of the rectus abdominis and lateral abdominal wall was measured by magnetic resonance imaging and lumbopelvic control, quantified using the single-leg and double-leg lowering tests. Results: There were no significant differences in the cross-sectional area of the rectus abdominis (right: P = .70, left: P = .99) or lateral abdominal wall (right: P = .07, left: P = .69) between groups. There was a significant difference between groups in the double-leg lowering test (P = .03), but not in the single-leg lowering test (P = .88). There were significant differences between the preintervention and postintervention in the single-leg (P < .001) and double-leg lowering tests (P < .001). Conclusions: ST could improve lumbopelvic control in the context of athletic training and fitness.

scholarly journals Effects of Electrical Muscle Stimulation on Waist Circumference in Adults with Abdominal Obesity: A Randomized, Double-blind, Sham-controlled Trial

2018 ◽  
Vol 56 (214) ◽  
pp. 904-911 ◽  
Author(s):  
Eun Jung Choi ◽  
Yun Jin Kim ◽  
Sang Yeoup Lee
Keyword(s):  
Waist Circumference ◽  
Nerve Stimulation ◽  
Transcutaneous Electrical Nerve Stimulation ◽  
Controlled Trial ◽  
Muscle Stimulation ◽  
Electrical Muscle Stimulation ◽  
Double Blind ◽  
Electrical Nerve Stimulation ◽  
Stimulation Group ◽  
Electrical Muscle

Introduction: We investigated the effects of electrical muscle stimulationon waist circumference as compared with an identical device providing transcutaneous electrical nerve stimulation as control in adults with abdominal obesity.Methods: This was a randomized, double-blind, sham-controlled trial. Sixty patients with abdominal obesity received electrical muscle stimulation or transcutaneous electrical nerve stimulation randomly five times a week for 12 weeks. Results: The electrical muscle stimulationgroup achieved a mean 5.2±2.8 cm decrease in waist circumference while the transcutaneous electrical nerve stimulation group showed only a 2.9±3.3 cm decrease (P=0.005). About 20 (70.0%) of the electrical muscle stimulation group lost more than 4 cm of waist circumference but that only 8 (33.3%) of the transcutaneous electrical nerve stimulation group did so (P=0.008). Furthermore, fasting free fasting acid levels were significantly higher in the electrical muscle stimulation than in the transcutaneous electrical nerve stimulationgroup at week 12 (P=0.006). In the electrical muscle stimulation group, slight decreases in visceral abdominal fat and total abdominal fat areas by computer tomography were observed at 12 weeks, but these decreases were not significant. In addition, patients’ self-rated satisfaction scores with this program were significantly higher in the electrical muscle stimulation group.Conclusions: The 12-week electrical muscle stimulation program modestly reduced waist circumference in abdominally obese adults without side effects.

scholarly journals The effect of physical exertion exercises using electrical muscle stimulation on the development of some physical and functional characteristics of women aged (40-45) years

2021 ◽  
Vol 20 (3) ◽  
pp. 0065
Author(s):  
زهاد فوزي زهاد ◽  
أ.د.مواهب حميد
Keyword(s):  
Physical Exertion ◽  
Sports Injury ◽  
Control Group ◽  
Muscle Stimulation ◽  
Electrical Muscle Stimulation ◽  
Functional Characteristics ◽  
Sports Activity ◽  
The Aesthetic ◽  
The Individual ◽  
Electrical Muscle

The researchers have recently noticed the interest in the problem of overweight and how to find solutions to it until it is now at the forefront in terms of innovating various and different methods and treatment methods, and the interest in developing health fitness is one of the most important requirements of physical activity for the trainees, which led to the multiplicity of sports activities that promote the health aspect For the individual, in addition to the aesthetic aspect, the problem lies in not adopting training programs according to codified scientific foundations aiming, in addition to reducing weight, to raise the general health level of the trainee participating in fitness institutes, as the trainers do not follow the scientific method in codifying training curricula taking into account the individual differences between the trainees Which exposes them to sports injury problems, as the researchers decided to prepare a standardized training program by preparing physical exercises using EMS technology (electrical muscle stimulation) because it saves the time and effort required to lose weight and improve appearance in a fast and effective way, and to know its effect on some physical and functional characteristics of women aged (30) -45). And the aim of the research is to prepare and identify physical exertion exercises using electrical muscle stimulation in developing some physical and functional characteristics of women aged (40-45) years old, and the researchers used the experimental method of pre and post testing for the experimental and control groups, and the research community was identified as trainees in the student club hall Sports Activity / University of Baghdad, for the training season 2019-2020, whose number is (18) trainees, as the research sample was selected using the comprehensive inventory method and the sample was divided into two experimental groups and the control group with (9) trainees for each group. Physical effort was applied using electrical muscle stimulation on the experimental group for a period of time. Eight weeks, with three training units per week, and they used the SPSS statistical bag to process the data and obtain the results, from which the researchers came to the most important conclusions. Exercise physical exertion using electrical muscle stimulation has a positive effect on the development of some physical and functional characteristics of women aged (40-45) years

Reducing Muscle Activity when Playing Tremolo by Using Electrical Muscle Stimulation to Learn Efficient Motor Skills

2021 ◽  
Vol 5 (3) ◽  
pp. 1-17
Author(s):  
Arinobu Niijima ◽  
Toki Takeda ◽  
Kentaro Tanaka ◽  
Ryosuke Aoki ◽  
Yukio Koike
Keyword(s):  
Support System ◽  
Muscle Activity ◽  
User Study ◽  
Control Group ◽  
Muscle Stimulation ◽  
Electrical Muscle Stimulation ◽  
Extensor Pollicis Longus ◽  
Significant Difference ◽  
Forearm Muscle ◽  
Electrical Muscle

When beginners play the piano, the activity of the forearm muscles tends to be greater than that of experts because beginners move their fingers with more force than necessary. Reducing forearm muscle activity is important for pianists to prevent fatigue and injury. However, it is difficult for beginners to learn how to do so by themselves. We propose using electrical muscle stimulation (EMS) to teach beginners how to reduce this muscle activity while playing a tremolo: a rapid alternation between two notes. Since experts use wrist rotation efficiently when playing tremolos, we propose an EMS-based support system that applies EMS not to muscles that are relevant to moving the fingers but to the supinator and pronator teres muscles, which are involved in wrist rotation. We conducted a user study with 16 beginners to investigate how the forearm muscle activity on the extensor pollicis longus and digitorum muscles changed when using our EMS-based support system. We divided the participants into two groups: an experimental group who practiced by themselves with EMS and a control group who practiced by themselves without EMS and then practiced with instruction. When practicing by themselves, practicing with EMS was more effective than that without EMS; the activity levels of the extensor pollicis longus and digitorum muscles were significantly lower with EMS, and the participants felt less fatigue when playing tremolos. By comparing the improvement in reducing muscle activity between practicing with EMS and practicing with instruction, there was no significant difference. The results suggest that our EMS-based support system can reduce target muscle activity by applying EMS to other muscles to teach beginners how to move limbs efficiently.

scholarly journals Pengaruh Penambahan Electrical Muscle Stimulation (EMS) Peningkatan Tonus Otot Pada Penderita DD

2017 ◽  
Vol 6 (1) ◽  
pp. 104-110
Author(s):  
Agus Widodo ◽  
BJ. Zia Yucca Praditya
Keyword(s):  
Muscle Tone ◽  
Wilcoxon Test ◽  
Muscle Stimulation ◽  
Functional Abilities ◽  
Electrical Muscle Stimulation ◽  
Before And After ◽  
Quasi Experimental ◽  
The Right ◽  
Electrical Muscle

Delayed Development (DD) is the classification of characteristics of children which is showeda significant delay in one or more domains of cognitive development, emotional or physical. The problemsthat arise in the DD are hypotonus of the muscles that cause delays in functional abilities ofchildren.The purpose of this study was to determine the influence of Electrical Muscle Stimulation(EMS)to increase muscle tone of DD patients. Quasi-experimental research method using two pre andpost-testgroup design. Sample of this research was 12 children 1-3 years of age. Measurement ofmuscletone using a sphygmomanometer before and after treatment for 4 weeks. The effect measuredusing Wilcoxon tes and the different effect measured using Mann Whitney test. Wilcoxon test resultshowedthat the effect of electrical muscle stimulation on muscle tone was seen from the right quadricepsp value (p = 0.026), the left quadriceps (p = 0.024), right tibialis anterior (p = 0.024) and left tibialisanterior(p = 0.024). It can be concluded that there is an effect of Electrical Muscle stimulation onincreasingthe muscle tone in people with DD.

scholarly journals Electrical Muscle Stimulation: An Effective Form of Exercise and Early Mobilization to Preserve Muscle Strength in Critically Ill Patients

2012 ◽  
Vol 2012 ◽  
pp. 1-8 ◽  
Author(s):  
Eleftherios Karatzanos ◽  
Vasiliki Gerovasili ◽  
Dimitrios Zervakis ◽  
Elli-Sophia Tripodaki ◽  
Kleovoulos Apostolou ◽  
...  
Keyword(s):  
Muscle Strength ◽  
Critically Ill ◽  
Critically Ill Patients ◽  
Handgrip Strength ◽  
Early Mobilization ◽  
Control Group ◽  
Muscle Stimulation ◽  
Electrical Muscle Stimulation ◽  
Muscle Groups ◽  
Electrical Muscle

Purpose. This is a secondary analysis of previously published data to investigate the effects of electrical muscle stimulation (EMS) on strength of various muscle groups in critically ill patients.Methods. One hundred forty-two consecutive patients, with APACHE IIscore≥13, were randomly assigned to the EMS or the control group. EMS sessions were applied daily on vastus lateralis, vastus medialis, and peroneus longus of both lower extremities. Various muscle groups were evaluated with the Medical Research Council (MRC) scale for muscle strength. Handgrip strength assessment was also employed.Results. Twenty four patients in the EMS group and 28 patients in the control group were finally evaluated. EMS patients achieved higher MRC scores than controls (P≤0.05) in wrist flexion, hip flexion, knee extension, and ankle dorsiflexion. Collectively, the EMS group performed higher (P<0.01) in the legs and overall. Handgrip strength correlated (P≤0.01) with the upper and lower extremities’ muscle strength and the overall MRC scores.Conclusions. EMS has beneficial effects on the strength of critically ill patients mainly affecting muscle groups stimulated, while it may also affect muscle groups not involved presenting itself as a potential effective means of muscle strength preservation and early mobilization in this patient population.

scholarly journals The Effect of Electrical Muscle Stimulation on Muscle Mass and Balance in Older Adults with Dementia

2021 ◽  
Vol 11 (3) ◽  
pp. 339
Author(s):  
Yuichi Nishikawa ◽  
Tetsuya Takahashi ◽  
Shuhei Kawade ◽  
Noriaki Maeda ◽  
Hirofumi Maruyama ◽  
...  
Keyword(s):  
Older Adults ◽  
Physical Function ◽  
Muscle Mass ◽  
Intervention Group ◽  
Functional Independence ◽  
Control Group ◽  
Muscle Stimulation ◽  
Electrical Muscle Stimulation ◽  
General Rehabilitation ◽  
Electrical Muscle

Background: Electrical muscle stimulation (EMS) is effective for increasing physical function. However, there is no evidence regarding the effects of EMS on muscle mass and physical function in older adults with dementia. The aim of the present study was to quantify the effects of EMS on muscle mass and balance in older adults with dementia. Methods: A total of 32 participants were randomly assigned to an intervention group (n = 16, age = 89.4 ± 4.8 years) and a control group (n = 16, age = 88.1 ± 5.2 years). Participants in the intervention group underwent a general rehabilitation program (20 min for three days/week) and an EMS intervention (23 min for three days/week) for 23 weeks. Participants in the control group underwent general rehabilitation only. The efficacy of EMS was evaluated by lower limb muscle mass, the Berg Balance Scale (BBS), and the functional independence measure (FIM). Results: Muscle mass was significantly increased in the intervention group after 12 weeks (p = 0.008), but average muscle mass in the control group did not change (p = 0.18). Participants in the control group showed a significant decrease in BBS after 12 weeks (p = 0.007), unlike those in the intervention group. Furthermore, there was a strong correlation between the mini-mental state examination (MMSE) results and the change in muscle mass, the BBS, and the FIM in the control group (p < 0.05). Conclusions: These findings suggest that EMS is a useful intervention for increasing muscle mass and maintaining balance function in older adults with dementia.

Creating user interfaces with electrical muscle stimulation

interactions ◽  
2016 ◽  
Vol 24 (1) ◽  
pp. 74-77 ◽  
Author(s):  
Stefan Schneegass ◽  
Albrecht Schmidt ◽  
Max Pfeiffer
Keyword(s):  
User Interfaces ◽  
Muscle Stimulation ◽  
Electrical Muscle Stimulation ◽  
Electrical Muscle

scholarly journals Atrophy patterns in isolated subscapularis lesions

2021 ◽  
Vol 22 (1) ◽  
Author(s):  
Gernot Seppel ◽  
Andreas Voss ◽  
Daniel J. H. Henderson ◽  
Simone Waldt ◽  
Bernhard Haller ◽  
...  
Keyword(s):  
Muscle Atrophy ◽  
Area Ratio ◽  
Cross Sectional Area ◽  
Control Group ◽  
Sectional Area ◽  
Cross Sectional ◽  
Subscapularis Muscle ◽  
Mri Scans ◽  
The Mean ◽  
The Cross

Abstract Background While supraspinatus atrophy can be described according to the system of Zanetti or Thomazeau there is still a lack of characterization of isolated subscapularis muscle atrophy. The aim of this study was to describe patterns of muscle atrophy following repair of isolated subscapularis (SSC) tendon. Methods Forty-nine control shoulder MRI scans, without rotator cuff pathology, atrophy or fatty infiltration, were prospectively evaluated and subscapularis diameters as well as cross sectional areas (complete and upper half) were assessed in a standardized oblique sagittal plane. Calculation of the ratio between the upper half of the cross sectional area (CSA) and the total CSA was performed. Eleven MRI scans of patients with subscapularis atrophy following isolated subscapularis tendon tears were analysed and cross sectional area ratio (upper half /total) determined. To guarantee reliable measurement of the CSA and its ratio, bony landmarks were also defined. All parameters were statistically compared for inter-rater reliability, reproducibility and capacity to quantify subscapularis atrophy. Results The mean age in the control group was 49.7 years (± 15.0). The mean cross sectional area (CSA) was 2367.0 mm2 (± 741.4) for the complete subscapularis muscle and 1048.2 mm2 (± 313.3) for the upper half, giving a mean ratio of 0.446 (± 0.046). In the subscapularis repair group the mean age was 56.7 years (± 9.3). With a mean cross sectional area of 1554.7 mm2 (± 419.9) for the complete and of 422.9 mm2 (± 173.6) for the upper half of the subscapularis muscle, giving a mean CSA ratio of 0.269 (± 0.065) which was seen to be significantly lower than that of the control group (p < 0.05). Conclusion Analysis of typical atrophy patterns of the subscapularis muscle demonstrates that the CSA ratio represents a reliable and reproducible assessment tool in quantifying subscapularis atrophy. We propose the classification of subscapularis atrophy as Stage I (mild atrophy) in case of reduction of the cross sectional area ratio < 0.4, Stage II (moderate atrophy) in case of < 0.35 and Stage III (severe atrophy) if < 0.3.

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