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Article

Bibliometric Analysis of Studies on Whole Body Electromyostimulation

by
Luiz Rodrigues-Santana
1,
José Carmelo Adsuar
2,
Ángel Denche-Zamorano
2,*,
Alejandro Vega-Muñoz
3,
Guido Salazar-Sepúlveda
4,
Nicolás Contreras-Barraza
5,
Carmen Galán-Arroyo
2 and
Hugo Louro
6,7
1
Faculty of Sport Sciences, University of Extremadura, 1003 Cáceres, Spain
2
Promoting a Healthy Society [PHeSo], Research Group, Faculty of Sport Sciences, University of Extremadura, 1003 Cáceres, Spain
3
Public Policy Observatory, Universidad Autónoma de Chile, Santiago 7500912, Chile
4
Departamento de Ingeniería Industrial, Facultad de Ingeniería, Universidad Católica de la Santísima Concepción, Concepción 4090541, Chile
5
Facultad de Economía y Negocios, Universidad Andres Bello, Viña del Mar 2531015, Chile
6
Sport Sciences School of Rio Maior, Research Center in Sport Science, Health and Human Development, 2040-413 Rio Maior, Portugal
7
Life Quality Research Center, 5000-801 Vila Real, Portugal
*
Author to whom correspondence should be addressed.
Biology 2022, 11(8), 1205; https://doi.org/10.3390/biology11081205
Submission received: 11 July 2022 / Revised: 5 August 2022 / Accepted: 8 August 2022 / Published: 12 August 2022
(This article belongs to the Special Issue New Frontiers of Sport, Exercise and Physical Activity for Health and Human Performance)
Browse Figures
Versions Notes

Abstract

:

Simple Summary

This work consists of a review with bibliometric analysis on WB-EMS. One hundred and two articles were analyzed in the period from 2010 to 2022 to find out which country, author and institutions produce the most knowledge on this topic. The results of this work are important to know to determine publication growth trend as well as the most relevant clusters and authors.

Abstract

Whole Body Electromyostimulation [WB-EMS] is a training methodology that applies electrostimulation in the main muscle groups of the human body superimposed with active training exercises. This study aims to carry out a bibliometric analysis on WB-EMS to provide an overview of the state of research and provide new insights for research in the field. Method: One hundred and two citations extracted were examined using a bibliometric approach based on data stored in the Web of Science Core Collection, applying traditional bibliometric laws, and using VOSviewer and excel for data and metadata processing. Results: Among the results, this study points out that Germany is the country that produces more scientific knowledge on WB-EMS. Wolfgang Kemmler is the most relevant author in this field. Moreover, Frontier of Physiology is the journal where the authors publish the most. Conclusion: Research on WB-EMS has been growing in recent years. German and Spanish researchers lead two clusters where most studies and collaborations in this field are carried out. These findings will provide a better understanding of the state of WB-EMS research and may guide the emergence of new lines of investigation and research ideas.

1. Introduction

This work aimed to analyze the interest and scientific evolution of Whole Body Electromyostimulation (Wb-EMS) training though a bibliometric analysis. WB-EMS emerged about a decade ago as an alternative to conventional training [1]. This training methodology uses technology combined with physical exercise. Through a special suit with electrodes, electrical stimulus (electromyostimulation) is sent to the main muscles of the human body. The number of electrodes varies according to the devices and brands (from six to ten pairs) and stimulation of the quadriceps, hamstrings, glutes, dorsal, pectoral, abdominal, biceps and triceps is common [2].
Considered by some authors as a time-efficient and safe methodology for those who do not want or do not like conventional methodologies [3], WB-EMS has gained more and more space and more practitioners worldwide. It is estimated that there will be over 7000 WB-EMS studios only in Europe with hundreds of thousands of practitioners.
Although this technology has been around for a long time, the number of scientific investigations is insufficient and unclear about its effects and benefits. Moreover, with a more detailed analysis of the fields on the subject, we can find three main applications of WB-EMS: Performance [4,5,6], Rehabilitation [7] and Health and Wellness [8].
Regarding the population, the WB-EMS has been studied and applied to the elderly [2], special populations that suffer from comorbidities [9,10,11,12] (e.g., obesity, cancer and sarcopenic) and also to athletes [13,14].

1.1. Effects of Whole Body Electromyostimulation on the Human Body

Although the use of WB-EMS is more than a decade old, the use of muscular electrostimulation (in an isolated and localized form) is thousands of years old. The earliest known use was by the Egyptians over 2000 years ago, who discovered the electrical properties in fish and used them to treat some diseases. From the 1970s onwards its use became more popular for physiotherapy, strengthening and fitness.
In the most recent use of this methodology in a global way (whole body), activity (combined with exercise) is based on electrical stimulation superimposed onto voluntary contraction. In context of chronic application, theoretically, the superimposition of electrical stimulation onto voluntary contraction recruits additional muscle fibers, producing more force, potentiating physiological adaptations and causing improvements in muscle power, strength or endurance [15].
The literature shows us some of these effects caused by WB-EMS training. In some randomized clinical trials, the experimental group significantly improved their strength and muscle mass [16,17]. Loss of fat mass and changes in body composition are also other effects demonstrated in some studies [18,19,20]. On the other hand, there are also studies that report improvement in chronic low back pain [21,22,23] and improving sports performance by increasing jumping, sprinting and muscle power [24,25,26].

1.2. Type of Current and Training Protocols Used

Most studios use the same type of current: bipolar, squared, with 85 Hertz, 350 milliseconds of pulse width and a 4 s contraction time [2,9,16,20,27]. The intensity of the current is, in most cases, controlled by the Borg subjective perception scale (RPE) [18,28,29]. Recently, some authors have used the maximum stimulus tolerance to define the intensity of the current [30,31]. The total time of sessions is up to 20 min in the most relevant studies. Moreover, there are few studies carried out with training with WB-EMS longer than 20 min.
The most cited articles in the literature show us that the exercise protocols performed with WB-EMS are mostly strength exercises with body weight or with very little additional load [32,33,34,35,36]. Considering the short duration of this training methodology, 6–10 exercises are performed in 1–2 sets of 8–12 repetitions in most randomized clinical trials of a recent metanalysis [37]. Power exercise protocols [5,38] were also used in some studios, as well as strength and hypertrophy exercises [39].
When it comes to cardiovascular endurance in the few studies where these types of exercises have been done, they are either done in metabolic circuits (e.g., high-intensity interval training) or are combined with strength exercises in a two-part hybrid training session [25,40,41].
Thus, considering the short time of existing research with WB-EMS and the increase of this practice worldwide, it is necessary to carry out a wide and updated meta-analytic study that provides an overview to the scientific, training and practitioner communities, which is feasible through a bibliometric approach that analyzes data and metadata from pre-existing specialist articles.
Therefore, the first aim of this study was to identify which authors, countries and journals publish the most on Whole Body Electromyostimulation. Secondly, we must find out if there is an exponential growth of publications over the years on this topic through a bibliometric analysis.

2. Materials and Methods

For the design of this study, a search was carried out in the main collection of the Web of Science (WoS), considering all articles published in journals indexed by WoS in the Science Citation Index (WoS-SCI-E) and Social Science Citation Index [42], based on a search vector referring to WB-EMS (Topic = ((Whole AND body) NEAR/0 electromyo*) or ((Whole AND body) NEAR/0 electrosti*) and Articles or Review Articles (document types), without restricting temporal parameters. We only extracted articles from WoS journal indexing database, since many studies [43,44,45,46,47] have revealed that the results of systematic reviews may vary according to the database used once different criteria to calculate the impact factor of journals can be used [46,47]. This procedure was performed on 30 April 2022. The data set was filtered, correcting duplications of authors and affiliations.
A general bibliometric analysis of the article set obtained was carried out, analyzing the scientific production referring to the field of research of this study, as well as the scientific trends in this field, checking if these follow an exponential growth. According to “Price’s Law on Exponential Science Growth” [48,49] the annual exponential growth of publications on a topic indicates that there is a strong interest among the scientific community, with a large critical mass of researchers developing this area of knowledge. The concentration of publications by journals was evaluated by applying Bradford’s law of concentrations, distributing these in terciles, according to the number of articles published in them, and obtaining the core of journals in which at least 33% of the total publications are concentrated, ratio n0 (journals in the core): n1 (journals in the zone 1): n2 (journals in zone 2), being “n”, Bradford multiplier, the average growth rate in the number of journals from one zone to the next [50,51]. In any field of knowledge, most of the articles come from a small portion of prolific authors. Lotka’s law was applied to identify the prolific authors so that they could be studied in isolation [51,52]. The most prominent articles and authors were identified by applying the Hirsch index (h-index), thus considering the “n” articles/authors cited at least “n” times or more [53]. Finally, the most frequently used keywords in the article set were highlighted by applying Zipf’s law of words [54]. VOSviewer software was used to perform the processing and visualization of the dataset, as well as co-citation and co-occurrence, performing fragmentation analysis with visualization outputs of temporal trends [55,56].

3. Results

A total of 102 papers (85 articles and 17 Review articles) were published between 2010 and 2022, included in 30 WoS categories, with 50% of the publications concentrated in two categories: Physiology (28 articles) and Sport Sciences (23 articles). Until 2012, no annual publication continuity was found, and no articles were published in 2011, so the analysis of the exponential growth of annual publications was performed between 2012 and 2021, the last complete year given the impossibility of performing this analysis with values equal to zero in any of the years. It was found that the publications adjusted to an exponential growth curve (R2 = 85%) for the period analyzed (Figure 1). The time period in which the newest median number of publications (contemporaneous articles) was concentrated was from 2020 to 2022 (51 articles), with the oldest median being concentrated between 2010 and 2018 (51 articles), meaning that it is a recently expanding topic.
Applying Bradford’s law of dispersion of the literature, three levels of concentration of publications were established, ratio: 1: n: n2 (% error = −4.3). Of the publications, 34% (35 articles) were concentrated in three journals, forming the core of publication: Frontiers in Physiology (23 articles), Clinical Interventions in Aging (6 articles) and International Journal of Environmental Research and Public Health (6 articles). Publication Zone 1 was made up of 10 journals, concentrating 23% of the publications. These journals presented between two and three articles. Zone 2 was made up of 44 journals, concentrating 43% of the publications (44 articles); one article per journal. Table 1 shows the journals that conformed the Bradford Core + Zone 1.
A total of 298 authors were found in the 102 articles included. Of the authors, 75% (216) had published only one article, compared to 11% (32 authors) with two articles. The other authors published between 3 and 36 articles (Figure 2).
According to Lotka’s law, it was estimated that the prolific authors should be the 17 with the highest number of publications (square root of 298). Then, 19 authors with the most published articles were considered the prolific authors: 13 authors with 8 or more publications + 6 authors with seven publications (Table 2).
Figure 3 shows the graph of interrelationships between the 19 prolific authors, forming four clusters, obtained with VoSviewer software (1.6.18, Center for Science and Technology Studies, Leiden, Netherlands) using a normalization analysis with a fractionalization method (attraction: 10; repulsion: −4). Cluster 1 (Red) was the prolific, led by Kemmler (36 articles, accompanied by: Von Stengel (27 articles), Kohl (19 articles), Weissaefels (11 articles), Bebenek (9 articles), Teschler (9 articles) and Engelke (7 articles).
A total of 113 organizations were found publishing on the target topic of this study. Only 10 of them presented three or more articles, with 23 organizations publishing two or more. The organization with the most publications was Friedrich Alexander University Erlangen Nurnberg (41 articles), forming a very prolific cluster with other German universities, as shown in Figure 4 with the interactions between the 113 organizations and the highest number of publications.
Germany (56 articles) and Spain (23 articles) were the countries that concentrated more than 75% of the publications on WB-EMS. Germany presented the highest production on the topic, with numerous universities involved, as can be seen in Figure 4. Figure 5 shows the 18 countries that contributed articles to the topic by author affiliation (Methods: Fractionization; Attraction: 8; Repulsion: 0). Two main clusters were found, led by Germany (Scotland, Belgium, and England) and Spain (USA, Brazil, Portugal, Chile, Peru, Australia and Netherlands).
Applying the Hirsch index (h-index) to select the articles with the highest number of citations, 20 papers were found to be cited 20 or more times (Table 3).
The most cited article was “Sarcopenic obesity and complex interventions with nutrition and exercise in community-dwelling older persons—a narrative review” [32] (Gossier, 2015) with 82 citations, followed by one of the pioneering articles on the topic: “Effects of whole-body electromyostimulation on resting metabolic rate, body composition, and maximum strength in postmenopausal women: the training and electrostimulation trial” [33] (Kemmel, 2010), with 72 citations. Figure 6 shows the graph with the 20 most relevant publications, according to the h-index.
Similarly, the 42 authors who presented at least 42 citations were selected and were considered the most prominent authors. Kemmler (776 citations) and Von Stongel (648 citations) were the most cited authors (Figure 7).
Upon the analysis of the keywords plus found 336 words, the most relevant keywords were considered as the 19 most used by applying Zipf’s law. These words appeared 10 or more times in the articles that composed the complete data set. Four clusters were found with the relationships of these words; Figure 8 shows the configuration of these clusters and interrelationships between the 19 keywords with the most occurrences.

4. Discussion

This bibliometric analyzed the properties of 102 publication included in a citation index of WB-EMS studies conducted since 2010 (over the past 12 year). During this period, the trend of annual publications showed an exponential growth in publications, except in 2017, where there were only 2 publications. In 2021, the number of publications dropped, which may reflect the COVID-19 pandemic (Figure 1).
Figure 3, through a visual analysis of the distribution of countries, shows that Germany and Spain are the leading countries where most of the studies are being conducted. Additionally, there is some collaboration between countries. Research teams in the United States mainly collaborated with Germany, Spain and Brazil. The two countries that publish the most do not collaborate with each other. On the one hand, German researchers collaborate more with Belgium, Scotland and England and, on the other hand, the Spanish ones publish more with the Netherlands, Chile, Portugal and Peru.
The most prolific, influential and cited author in WB-EMS is Wolfgang Kemmler, followed by Simon Von Stengel (Table 2) with a wide network of connections and collaborations with other authors (Figure 2 and Figure 5). Moreover, in terms of the number of citations “Sarcopenic obesity and complex interventions with nutrition and exercise in community-dwelling older persons—a narrative review” [32] is the most cited article (Table 3). This study is a narrative review of the nutritional and exercise interventions for sarcopenic obesity in which WB-EMS is pointed out as time-saving option for positively impacting body composition and functional capacity. According the H-index (Figure 5), Wolgang Kemmler is the author of five of the six most relevant articles [1,34,36,59,69], in which the most relevant is the article by Sabine Goisser [32]. Interesting to note that the relevant articles are interventions made in special cohorts (sarcopenic obesity, postmenopausal woman and elderly).
As shown in Figure 2, most authors (75%) only have one published article. On the other hand, there is an author who is involved in about 35% of published articles. Frontiers in Physiology (23 articles), Clinical Interventions in Aging [6] and International Journal of Environmental Research and Public Health [6] are the journals where authors publish the most. On the one hand, Frontiers in Physiology is one of the largest journals in the world, covering more than 900 academic disciplines. On the other hand, the other two scientific journals are more related to aging and public health, both fields of application of this methodology.
From keyword analysis, the current research focuses on exercise, strength and sarcopenic obesity. Physical exercise is at the base of the application of WB-EMS, since the methodology is active, and superimposed on exercise. Strength development is one of the effects of using this methodology, which has already reported in several studios and in a recent meta-analysis [37]. On the other hand, the use of WB-EMS in people with sarcopenic obesity has been shown to be very effective, as we have previously mentioned.
The 17 references identified in this study are about the use and effects of the WB-EMS. To the best of our knowledge this bibliometric analysis is the first that provides a general a broad overview of the state of research on WB-EMS. Identifying the main authors, articles and most relevant institutions is extremely important for future researchers to be able to identify which lines of investigation have the most evidence and those that still need further investigation. Furthermore, it can help in future collaborations between new authors and more experienced authors for increasing and better research in the future.
There are two main limitations that we would like to point out in this study. First, the short time of study on WB-EMS; this type of study may have more meaning when there is more research time and number of studies. Second, the literature search was limited to Web of Science Core Collection databases, which might have resulted in election bias to the outcomes.
Other authors can utilize the results of this work to best know the WB-EMS topic and working in new hypotheses. The findings and their implications should be discussed in the broadest context possible. Future research directions may also be highlighted.
As for future research challenges, it is necessary to complement the data obtained in this manuscript with a systematic review and meta-analysis, and it would also be very interesting to perform bibliometric and systematic review analyses and specific meta-analyses in the different areas identified as lines of research on BM-EMS (exercise, strength and sarcopenic obesity).

5. Conclusions

This bibliometric analysis provides an overview of research findings into WB-EMS worldwide. There is an exponential growth trend in WB-EMS research since the first article published in 2010. Germany is the country that produces the most scientific knowledge on this topic (more than 75% of the articles). The leading institution is the Friedrich Alexander University Erlangen Nurnberg affiliation of the most relevant author Wolfgang Kemmler. In addition, Frontiers in Psychology is the most attractive journal for WB-EM researchers.

Author Contributions

Conceptualization, L.R.-S., J.C.A., Á.D.-Z. and H.L.; Formal analysis, L.R.-S. and Á.D.-Z.; Methodology, L.R.-S., J.C.A., Á.D.-Z., C.G.-A. and H.L.; Resources, A.V.-M., G.S.-S. and N.C.-B.; Software, L.R.-S. and Á.D.-Z.; Supervision, J.C.A., A.V.-M. and H.L.; Visualization, G.S.-S. and N.C.-B.; Writing–original draft, L.R.-S., J.C.A., Á.D.-Z., A.V.-M., G.S.-S., N.C.-B., C.G.-A. and H.L.; Writing–review & editing, L.R.-S., J.C.A., Á.D.-Z., A.V.-M., G.S.-S., N.C.-B., C.G.-A. and H.L. All authors have read and agreed to the published version of the manuscript.

Funding

The article processing charge (APC) was partially funded by Universidad Católica de la Santísima Concepción (Code: APC2022). Additionally, the article processing charge (APC) was partially financed through the publication incentive fund 2022 by the Universidad Autónoma de Chile (Code: C.C. 456001) and the Universidad Andres Bello (Code: C.C. 21500).

Institutional Review Board Statement

Not applicable.

Informed Consent Statement

Not applicable.

Data Availability Statement

The raw data supporting the conclusions of this article will be made available by the authors.

Acknowledgments

The present work was performed in [partial] fulfillment of the requirements for obtaining the PHD degree of University of Extremadura. The author Á.D.-Z. [FPU20/04201] was supported by a grant from the Spanish Ministry of Education, Culture and Sport. Grants FPU20/04201 funded by NCIN/AEI/10.13039/501100011033 and, as appropriate, by “European Social Found Investing in your future” or by “European Union Next Generation EU/PRTR”.

Conflicts of Interest

The authors declare no conflict of interest.

References

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Biology 11 01205 g001 550
Figure 1. Temporary publication trend on WB-EMS between 2011 and 2021. Gris line: number of articles published per year. Blue line: exponential growth trend.
Figure 1. Temporary publication trend on WB-EMS between 2011 and 2021. Gris line: number of articles published per year. Blue line: exponential growth trend.
Biology 11 01205 g001
Biology 11 01205 g002 550
Figure 2. Histogram of publications per author on WB-EMS.
Figure 2. Histogram of publications per author on WB-EMS.
Biology 11 01205 g002
Biology 11 01205 g003 550
Figure 3. Co-authors graph on WB-EMS (19 prolific authors).
Figure 3. Co-authors graph on WB-EMS (19 prolific authors).
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Biology 11 01205 g004 550
Figure 4. Graph of prolific organizational co-authors on WB-EMS.
Figure 4. Graph of prolific organizational co-authors on WB-EMS.
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Biology 11 01205 g005 550
Figure 5. Countries/regions co-authored graphs on WB-EMS.
Figure 5. Countries/regions co-authored graphs on WB-EMS.
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Biology 11 01205 g006 550
Figure 6. Graph with most relevant articles, according to h-index.
Figure 6. Graph with most relevant articles, according to h-index.
Biology 11 01205 g006
Biology 11 01205 g007 550
Figure 7. Author with more citations on WB-EMS.
Figure 7. Author with more citations on WB-EMS.
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Biology 11 01205 g008 550
Figure 8. Graph with the most repeated keywords plus on WB-EMS.
Figure 8. Graph with the most repeated keywords plus on WB-EMS.
Biology 11 01205 g008
Table
Table 1. Core and zone 1 (Bradford’s zones) journals, according to publications for WB-EMS.
Table 1. Core and zone 1 (Bradford’s zones) journals, according to publications for WB-EMS.
Bradford’s ZonesJournalsQuartileArticles% Articles% O. Acc. Articles
CoreFrontiers in physiologyQ12323%23%
Clinical interventions in agingQ266%28%
International journal of environmental research and public healthQ166%34%
Zone 1Journal of sports science and medicineQ233%37%
Journal of strength and conditioning researchQ233%40%
NutrientsQ133%43%
Deutsche zeitschrift fur sportmedizinNot Applicable22%45%
Evidence based complementary and alternative MedicineQ222%47%
International journal of sports medicineQ222%49%
Isokinetics and exercise scienceQ422%51%
MaturitasQ122%53%
Medicina-LithuaniaNot Applicable22%55%
PloS OneQ222%57%
Table
Table 2. Co-author prolific on WB-EMS.
Table 2. Co-author prolific on WB-EMS.
AuthorMain AffiliationCountryArticlesCitations
1. Kemmler, W.University of Erlangen NurnbergGermany36772
2. Von stengel, S.University of Erlangen NurnbergGermany27648
3. Kohl, M.University of Erlangen Nurnberg. University of KaiserslauternGermany19333
4. Frohlich, M.University of KaiserslauternGermany15181
5. Amaro-Gahete, F.University of GranadaSpain12113
6. Kleinoeder, H.German Sport University CologneGermany12165
7. De-la-O, A.University of GranadaSpain11113
8. Jurado-Fasoli, L.University of GranadaSpain11113
9. Weissenfels, A.University of Erlangen NurnbergGermany11270
10. Bebenek, M.University of Erlangen NurnbergGermany9297
11. Castillo, M.University of GranadaSpain984
12. Teschler, M.University of Erlangen NurnbergGermany9213
13. Ruiz, J.University of GranadaSpain894
14. Berger, J.University of KaiserslauternGermany762
15. Engelke, K.University of Erlangen NurnbergGermany7170
16. Filipovic, A.German Sport University CologneGermany7115
17. Herrmann, H.Universiy of Erlangen NurnbergGermany749
18. Neurath, M.Universiy of Erlangen NurnbergGermany749
19. Zopf, Y.Universiy of Erlangen NurnbergGermany749
Table
Table 3. Articles with more relevance, according to h-index.
Table 3. Articles with more relevance, according to h-index.
ArticleJournalAuthorYearCitations
Sarcopenic obesity and complex interventions with nutrition and exercise in community-dwelling older persons—a narrative reviewClin Interv AgingGoisser [32]201582
Effects of whole-body electromyostimulation on resting metabolic rate, body composition, and maximum strength in postmenopausal women: the training and electrostimulation trialJ Strength Cond ResKemmler * [33]201073
Age-related changes in skeletal muscle: changes to lifestyle as a therapyBiogerontologyMcCormick [57]201871
Impact of whole-body electromyostimulation on body composition in elderly women at risk for sarcopenia: the Training and ElectroStimulation Trial [TEST-III]AgeKemmler * [34]201463
Whole-body electromyostimulation to fight sarcopenic obesity in community-dwelling older women at risk. Results of the randomized controlled FORMOsA-sarcopenic obesity studyOsteoporosis IntKemmler * [58]201659
Effects of Whole-Body Electromyostimulation versus High-Intensity Resistance Exercise on Body Composition and Strength: A Randomized Controlled StudyEvid-based Compl AltKemmler * [36]201657
Whole-body electromyostimulation as a means to impact muscle mass and abdominal body fat in lean, sedentary, older female adults: subanalysis of the TEST-III trialClin Interv AgingKemmler * [16]201355
Whole-body electromyostimulation and protein supplementation favorably affect sarcopenic obesity in community-dwelling older men at risk: the randomized controlled FranSO studyClin Interv AgingKemmler * [59]201754
Efficacy and Safety of Low Frequency Whole-Body Electromyostimulation [WB-EMS] to Improve Health-Related Outcomes in Non-athletic Adults. A Systematic ReviewFront PhysiolKemmler * [60]201842
Effect of whole-body electromyostimulation on energy expenditure during exerciseJ Strength Cond ResKemmler * [61]201242
Effects of a Whole-Body Electrostimulation Program on Strength, Sprinting, Jumping, and Kicking Capacity in Elite Soccer PlayersJ Sport Sci MedFilipovic * [38]201637
Impact of whole body electromyostimulation on cardiometabolic risk factors in older women with sarcopenic obesity: the randomized controlled FORMOsA-sarcopenic obesity studyClin Interv AgingWhittman [62]201629
Effects of Combined Whole-Body Electromyostimulation and Protein Supplementation on Local and Overall Muscle/Fat Distribution in Older Men with Sarcopenic Obesity: The Randomized Controlled Franconia Sarcopenic Obesity [FranSO] StudyCalcified Tissue IntKemmler * [63]201828
Optimizing the Benefits of Exercise on Physical Function in Older AdultsPM&RBuford [64]201428
Effects of Whole-Body-Electromyostimulation on Body Composition and Cardiac Risk Factors in Elderly Men with the Metabolic Syndrome. The TEST-II StudyDeut Z SportmedKemmler * [1]201028
Effect of exercise alone or combined with dietary supplements on anthropometric and physical performance measures in community-dwelling elderly people with sarcopenic obesity: A meta-analysis of randomized controlled trialsMaturitasHita-Contreras [65]201826
Effects of whole-body electromyostimulation combined with individualized nutritional support on body composition in patients with advanced cancer: a controlled pilot trialBMC CancerSchink [66]201825
Effect of whole-body electromyostimulation and/or protein supplementation on obesity and cardiometabolic risk in older men with sarcopenic obesity: the randomized controlled FranSO trialBMC GeriatrKemmler * [63]201824
Effects of whole-body ELECTROMYOSTIMULATION on health and performance: a systematic reviewBMC Complem Altern MPano-Rodriguez [67]201921
Exercise alone or combined with dietary supplements for sarcopenic obesity in community-dwelling older people: A systematic review of randomized controlled trialsMaturitasMartinez-Amat [68]201821
* It coincides with the prolific.
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Rodrigues-Santana, L.; Adsuar, J.C.; Denche-Zamorano, Á.; Vega-Muñoz, A.; Salazar-Sepúlveda, G.; Contreras-Barraza, N.; Galán-Arroyo, C.; Louro, H. Bibliometric Analysis of Studies on Whole Body Electromyostimulation. Biology 2022, 11, 1205. https://doi.org/10.3390/biology11081205

AMA Style

Rodrigues-Santana L, Adsuar JC, Denche-Zamorano Á, Vega-Muñoz A, Salazar-Sepúlveda G, Contreras-Barraza N, Galán-Arroyo C, Louro H. Bibliometric Analysis of Studies on Whole Body Electromyostimulation. Biology. 2022; 11(8):1205. https://doi.org/10.3390/biology11081205

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Rodrigues-Santana, Luiz, José Carmelo Adsuar, Ángel Denche-Zamorano, Alejandro Vega-Muñoz, Guido Salazar-Sepúlveda, Nicolás Contreras-Barraza, Carmen Galán-Arroyo, and Hugo Louro. 2022. "Bibliometric Analysis of Studies on Whole Body Electromyostimulation" Biology 11, no. 8: 1205. https://doi.org/10.3390/biology11081205

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