# Introduction xcessive work, household chores, unbalanced eating habits added to bad practices (smoking and alcohol consumption) and urban lifestyle with little availability of time for leisure activities have made gyms one of the main options for those who wish to practice physical activities (Pereira Filho et al., 2013). Besides that, the global community spends a significant portion of their income on health care and this leads, for example, to many health plans to offer discounts to those who participate in weight loss programs or to enroll in gyms (Bachman, 2007;Sevick et al., 2000). For Yildiz and Kara (2012), the change in the attitude of consumers towards the adoption of healthier routines is one of the factors that contribute to the growth of the fitness industry. In 2016, the number of Americans who used the services from the fitness centers reached the order of 57.3 million. Regarding the years of 2009 and 2015, respectively, the increases in the contingent of users were 26.5% and 3.6%. Currently, in the United States, operate a little more than 36 thousand companies in this sector. In the world context, in 2015, more than 186 thousand health club served 151.5 million consumers, totaling a revenue of approximately 81 billion dollars (IHRSA, 2017). The statistics reveal an attractive market and of intense competition. However, this industry is marked by significant rates of disassociation. Therefore, managers should turn their attention to customer retention strategies, which will generate positive gains in indicators such as cash flow, market share, and profitability (Avourdiadou and Theodorak is, 2014). However, loyalty involves the understanding of how the customers of the fitness segment evaluate the services received. Service quality is a key factor in this process (Ferrand et al., 2010;García Fernández et al., 2012; Avourdiadou and Theodorak is, 2014; Yu et al., 2014). By offering a high level of service, the organizations contribute to a greater psychological commitment of the practitioners of physical activities. On the other hand, the discontinuation of physical exercises is driven by failures in service delivery. Some reasons support these arguments: first, fitness services have unique characteristics when compared to other services. Consuming a sports service requires a high rate of user participation. Thus, the achievement of customer objectives depends on how well he exercises its role in the service process; second, some subjective factors impact on the judgments in relation to the fitness service. Perceived motivations and constraints are some examples (Alexandris et al., 2004). Through this context, companies need to increase investments in service attributes that are valued by consumers and, at the same time, show organizational performance below expectations. In light of the above, this study aims to identify which factors, in the literature, delimit the concept of service quality in the segment of gyms. Parasuraman et al. (1988) recognized that this concept was influenced by the environment. Quality elements of one industry is not similar to that of another, in its fullness. Therefore, this study is directed to answer the following key question: what attributes circumscribe the quality of service in gyms? Issue has not yet been exhausted in the literature. The work is justified from the insights provided to scholars and managers of the area, providing a deeper understanding of the nature of the term service quality. Important theme for the dynamics of the service process in gyms, because it can shed light on some elements that cause the high rates of dropouts in the fitness industry. Knowing the elements that the literature emphasizes as essential in the service of a gym will help managers make more effective decisions. This will help them hone their services and delight customers, increasing the chances of repeat purchases. For this, a systematic review of the literature and a content analysis were developed. Fundamentals support the combined use of these techniques. Initially, it is beneficial to use the systematic review for studies in which the researcher wants to identify and evaluate all relevant researches on a phenomenon of interest, using a conservative tone to follow an explicit, rigorous and transparent methodological approach. In this class of literature review, a protocol is configured as an essential component (Greenhalgh et al., 2004;Moher et al., 2015;Tranfield et al., 2003). This scenario is aligned with this paper, which adopted the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA), procedure widely used in health studies such as the fitness segment (Gulliver et al., 2010;Liberati et al., 2009;Sisask and Värnik, 2012). In addition, our review explores overviews that have not yet been worked and that deal with state of the art in relation to the service quality in the fitness sector. Finally, the understanding of the service quality phenomenon, due to its complexity and specificity, demands the researcher to use a flexible technique to processing of data. This motivated the choice by content analysis. Understanding the state of the art requires a large volume of textual data, this demands the application of a technique that simplifies this data mining work. By transforming texts into a network of categories it is possible to clearly and comprehensively understand the meanings surrounding the observed phenomena (Hsieh and Shannon, 2005). # II. # Method Figure 1 illustrates the methodological procedures adopted in this systematic review study. For Tran field et al. (2003), this typology of literature review is useful when the researcher, supported by a method, intends to narrow a voluminous set of evidence and transform it into a short and simple report, which helps the reader to understand a topic of their interest. The authors emphasize that it is possible to minimize the bias that the researcher imposes in the step of selecting the references, in order to refine more explicitly and synthetically its conclusions on the articles chosen (Tran field et al., 2003). These fundamentals support the choice of this technique. In this study, a reduced version of the approach called Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) was employed, which originally has a checklist with 27 items. Anomalous aspects to the Administration area and not applicable to this research were disregarded. Twenty-three items of this methodology were processed (except those relating to protocol / registration, additional analysis, and financing). The presence in titles, abstracts or keywords of the following terms was demarcated as preliminary criterion of eligibility: "service quality" or "fitness center"; "service quality" or "gym"; "service quality" or "health club"; "calidad del servicio" or "centro de fitness". The search occurred in the Emerald, ScienceDirect and EBSCO data bases, in the middle of April 2017, establishing restrictions concerning the language of the article (English, Portuguese or Spanish), typology of the publication (only articles in journals) and publication situation (free access in full). Time limits were not prefixed. In the identification phase, a total of 46 articles were tracked. However, four duplications between the bases were found and excluded. A set of primary studies and initially recruited was composed of 42 papers. The abstracts of all articles that were part of this embryonic group were read. The objective was to evaluate whether each of them met the following inclusion criteria: i) is classified as an empirical study; ii) contribute to the identification of determinants of service quality in fitness centers; iii) have the full text available; iv) is published in English, Spanish or Portuguese. Meeting all criteria take the article to the status of eligible for evaluation (selection step). However, the lack of information in the abstracts did not eliminate them immediately. In these cases, a full reading was made to determine if the article was prepared to integrate the list of selected. Twenty-two papers constituted this collection. The other twenty violated at least one of the criteria mentioned, being excluded from the evaluation scope. Among them, fifteen did not contribute to the Studies effectively included in the metaanalysis and qualitative analysis (N = 20) Exclusion of studies with justification (N = 2) # Inclusion step Removed after analysis of abstract (N = 20) identification of attributes that circumscribe service quality in gyms, one was a theoretical essay and four were outside the scope of analysis (aquatic centers, The subsequent phase involved the complete reading of each of the 22 articles eligible for evaluation. This initial analysis allowed the exclusion of two studies because they did not effectively contribute to the research question. The others were included in the meta-analysis and qualitative analysis steps. The first phase was based on a descriptive statistical evaluation of the following variables: database, journal title, year of publication, authors, institution with which the authors have a link, nationality of authors, title of article, keywords, number of references, most cited authors, research objective, theoretical foundation employed, application context, sample, type of research, epistemological and methodological classification, methods of collection and analysis, results, limitations and direction of future research. In the second phase, the content analysis was developed to apprehend the dimensions and variables that symbolize the service quality of gyms. Open and axial encodings were performed. The first aims to express the data of the article in the form of concepts, while the other identifies connections between the categories resulting from the previous step. It is based on evaluating what approximates and differentiates one category from the other (Flick, 2009). # III. Presentation and Discussion of Results In this section, the results of the analysis of twenty articles were presented. It is noted that the largest fraction of publications is linked to the EBSCO database (55%) and report to the triennium 2012 to 2014 (45%). The oldest and most recent publications date, respectively, from 1987 and 2014. The most frequent channels of disclosure were the periodicals Journal of Sport Management (four articles) and Managing Service Quality (three articles) which have, in the present day, the impact factors on the order of 0.684 and 1.286 respectively. Table 1 illustrates the databases, year and periodical in which the articles were publicized. Regarding the nationality of the authors, Greece and United States were the countries that stood out. The Greeks and the Americans, together, were responsible for 50% of the publications, making each of them 5 papers. Spain and South Korea also point out as secondary exponents in the area of quality management in fitness centers. Eleven other nations also sowed theoretical contributions in the fitness industry, of which eight are located in the European (Portugal, Sweden, France, United Kingdom and Turkey) and Asian continents (Malaysia, Hong Kong, and China). Table 2 shows the authors of the articles evaluated in the review and their origins. Moreover, Nicholas D. Theodorak is and Jerónimo García Fernández, with three publications each, were the most active authors. On a lower level, other names stand out such as Ainara Bernal García, Pinelopi Athanasopoulou, Susan Y. Kim and James J. Zhang. All these with two papers. In addition, forty-five different authors also recorded studies. The number of Behavioral evidences of researchers point to a network of co-authorship that evolves scatteredly, as shown in Figure 2. Only three clusters show more apparent ramifications. One of these clusters is labeled purely Greek current by reason of the nationality of the majority of the theorists that integrate it. It is a relatively recent group, with publications dating from the beginning of the years 2000. Seven authors compose this grouping, with Nicholas Theodorakis as the exponent, whose empirical contributions gravitate, in essence, to the understanding of the dimensions of the quality of the fitness service and as distinct groups evaluate each one. Note also an emerging group, influenced by Spanish academics and with prominence for Jerónimo García Fernández. The Cluster was named purely Spanish current. Eight authors make up this contemporary conglomerate, whose studies have been propagated since 2012. This community currently focuses on the analysis of the relationship between service quality and variables related to consumer (satisfaction, fidelity, perceived value, among others). Another cluster more robust and intense was evidenced, entitled American-Korean current. Nine authors incorporate it and whose origins are more heterogeneous than the other groups. A peculiar feature of the group is the connection between older authors (with publications from the 1990s) and those more recent. There are indications that his current research is based on constructs of more classic authors on the theme, the example of Daeshik Kim and Susan Y. Kim (instrument QUESC). The most current investigations of this current have objectives similar to the purely Spanish current, yet the embryonic works had a stronger approximation with the purely Greek current. Related to institutions (Table 3), the Aristotle University of Thessaloniki was the one that most disseminated studies within the defined scope. There were four articles attributed to this organization. University of Sevilla, University of Peloponnese, Democritus University of Thrace, University of Texas and University of Athens, with two papers each, also integrate the group of the most incisive educational institutions in the art of publishing theoretical-empirical constructions. Furthermore, another twenty institutions, with a single article, were evidenced in the literature review. Regarding the aspects of the content of the articles, it can be seen that the terms service(s), fitness and quality were those that are more evident in the titles of the studies. The first word contains 13 mentions, while the other two have 11 indications. These same terminologies are also noted in the keywords. What differs is only the position that occupies in the ranking and the frequency with which they appear. The word quality is the most cited with 11 occurrences, followed by service(s) and fitness. The last two have In addition, the relation between the impact factor of the journal and the number of global citations of each study was drawn. The first variable was collected in the official sites of the journals, while the second variable was captured from the statistics published in Google Scholar. The information were expressed in Table 4. Kim and Kim (1995) which proposes one of the pioneer scales (labeled QUESC) in the fitness segment also occupied a position of relevance, being one of the most cited on three occasions. As for the theoretical foundations employed, the contributions of Oliver and Parasuraman, Zeithaml and Berry were intensified. In ten articles, the use of the paradigm of disconfirmation and the standardized multidimensionality of the service were recurrent. The contexts of research execution practically fitness center (public and/or private) or sports complexes, which had this type of business in the package of services offered. Only in the study of Amirani and Baker (1995) the focus was different, having as the field of application a university. The number of participating organizations ranged from 1 to 30 enterprises. In nine papers, the application of collection tools focused on only one company. The studies were predominantly quantitative (70%), whose samples varied between 110 and 5283 subjects. For the qualitative (15%), the sample size ranged from 10 to 100 individuals. The other articles were classified as mixed (15%) because they combined qualitative and quantitative approaches. In this group, the number of participants was between 8 and 1202. Regarding the epistemological and methodological foundations, there was a predominance of positivist studies and with the use of survey (85%). Exceptions were noted in the works of Lagrosen and Lagrosen (2007), Athanasopoulou et al. (2013), Athanasopoulou (2008). The three articles have a constructivist epistemological paradigm. However, the first adopted the Grounded Theory, whereas the last chose the case study. Furthermore, it is perceived that the author Pinelopi Athanasopoulou has a bias towards the qualitative approach. The hegemony of the questionnaire as a collection method was perceptible. In seventeen studies, this instrument was used. Relative to the techniques of analysis, the internal consistency test (Cronbach's alpha), factorial analysis and analysis of variance (ANOVA) were the most employed. Thirteen, twelve and nine were the quantities of evidence of the use of each of the respective statistical techniques. Alluding to results, the main relationship discussed was the effect of service quality on consumer satisfaction. The studies of Ferrand et (2013). It was also pointed out the plurality and nonstandardization of the dimensions that symbolize the quality of the fitness service. The quantitative of dimensions ranged from 2 to 11, without expressing solidity in the findings. The notes on the limitations of articles gravitated around the impossibility of generalizing the results. The reasons given were predominantly the small sample size, the smallest number of participating institutions and geographic spaces investigated (did not compare cultural variations) and the non-probabilistic trace of the samples. In eleven articles, these statements were manifested. The works of García et al. (2013) and Avourdiadou and Theodorakis (2014) showed the cross-section of the samples as a limiting factor. Already the directions of future research turn around the replication of the study itself, increasing the amount of fitness center, variables and territories investigated. The review of the quality measurement scales of the fitness service was also mentioned. These points were manifested in fourteen of the evaluated articles. Finally, the multiple meanings that circumscribe the service quality of fitness center were grouped into twenty categories (Figure 4). As for the number of citations, the two categories of greater emphasis are related to the human resource theme. The first position is occupied by that entitled administrative staff, followed by instructors; which presented 55 and 45 indications, respectively. This result elucidates how relevant the employee is in the context of the fitness industry. Phenomenon that highlights the conclusions of Athanasopoulou (2008), by mentioning that, because of the constant contacts with clients, gyms employees are paramount in the service quality and must have the skills Furthermore, the attendance subcategory was the prominent aspect both in one and the other category. The excerpts "the instructors should be sociable, communicative, friendly and to be caring for clients" from the study of Athanasopoulou (2008); and "employees behave in a pleasant way in interactions with customers" of the work of Lagrosen and Lagrosen (2007) exemplify the phenomenon. Thus, the way in which clients interact with instructors and administrative staff was perceived as a key item in providing the service. In the administrative staff category, the attendance element appeared 39 times; while in instructors, this number was 24 evidence. The environments category had 41 references, occupying the third place. This corroborates with the notes of Yu et al. (2014), which cite the environment as one of the elements that contribute to satisfaction, customer retention, and profitability of the company. The biggest highlight occurred in the traces of luminosity, ventilation, and smell that made up the physical spaces of the gym and made them more pleasant (subcategory labeled environmental comfort with 24 notes). The study by Fernández et al. (2012), for example, presents textual fragments that illustrate these elements, such as: "temperature is adequate"; "there is pleasant smell" and "humidity is appropriate". Subsequent posts were filled by categories training programs (35), equipments (26), convenience (25) and modalities (22). Concerning the training programs, the customization, with twelve citations, was the most preponderant item. Understanding the needs and desires of the clientele is essential in the management of a fitness center. Some theorists (Kim, 1995;Afthinos et al., 2005) have mentioned this aspect of service in their empirical essays, as the excerpts reveal: "exercise programs or differentiated goals"; "family programs"; "children's programs". For the equipments, the launch status, the aspect of new (modernity subcategory) was cited in eight studies. This reinforces the attention that the managers must offer the periodical renovation of the set of apparatus for the practice of exercises and furnishings available. Mentions to "modern-looking equipment" were recurrent in textual extracts from the works of Lam et al. In terms of convenience and modalities, the supremacy was directed, respectively, to the subcategories accessory services (snack bars, sporting goods stores, among others) and variety of sports activities. The studies of Chelladurai (1987) and Howat et al. (1999) reinforce the conception of ancillary services from the respective sections: "variety of foods offered at the snack bar" and "the center must have adequate facilities for food and drinks". Theodorakis et al. (2004), on the other hand, emphasized the diversity of modalities in the fragment "wide variety of programs". Among the seven most commented categories, only convenience is not part of the main service of a fitness club. Another thirteen categories were evidenced to a lesser extent. Participated in this list: hygiene, location, locker rooms, information, organized events, accessibility, price, packages of service, organizational image, socialization, hedonism, safety conditions and corporate management. Figure 5 illustrates the categories and subcategories linked to service quality in gyms. Adaptation of the body in order to respond and resist, satisfactorily, the physical efforts of daily life; in their intensity and time of exposure. E1, E3, E6, E9, E15, E16. # Psychological well-being The good functioning of the human mind, in which the individual is able to have self-control and autonomy, to possess a positive view of himself. E6, E9, E14, E15. Customization Adaptation of service, or part of it, to meet the needs and desires of consumers. E2, E3, E4, E5, E6, E7, E8, E11, E12, E14, E16, E20. # Variety Assortment of programs available. E7, E13, E20. # Level of excellence Programs are run at a level higher than consumer expectations. E7, E11, E17, E20. # Aesthetic change Reach of body beauty patterns delimited by society, from physical activity. E9. # Instructors # Cost-benefit Relationship between the value paid (sacrifice) and advantages perceived by the client during provision of the service. E2, E4, E5, E8, E11, E16. # Promotions Special conditions of payment (value and term) offered by the fitness center in order to leverage the number of enrollments. E10. # Payment methods Means that the gym provides for customers to pay their monthly fees (checks, cards, cash, among others). E10. # Secondary services Value charged on goods and services that are not essential to the functioning of a health club (snack bar, resale store of sportswear and supplements, among others). E1. # Convenience Opening hours Duration in which the gym is in operation. E1, E3, E7, E12, E19, E20. # Accessory services Availability of services that are not essential to the functioning of a health club (parking, snack bar, resale store of sportswear and supplements, among others). E1, E2, E4, E5, E7, E10, E16, E20. # Internal procedures The ease with which consumers perform internal procedures at the gym. E1, E2, E4, E8. Waiting time Time the consumer takes to be served. # Design Aspects of the environment that improve its functionality and aesthetics. E1, E2, E4, E6, E7, E8, E20. # Information # Access Ease of access to the information offered by the fitness center. E2, E4, E8, E11, E19. # Information system Mechanisms that the gym has to keep its client informed about aspects of the service. E12. # Current The information provided by the gym is current. E5. IV. # Safety # Final Considerations This article proposed a discussion about which factors guide the concept of quality of service in the gyms sector. For this, a systematic review of the literature was conducted with the purpose of identifying empirical works and extracting explanatory elements of quality. The meta-analysis approach assisted in this step, as well as provided a panoramic view of the thematic. Besides, a content analysis was used to understand the assortment of meanings related to the variable of interest and to condense them into a smaller number of categories. Among the findings, authors Nicholas Theodorakis (Greek) and Jerónimo García Fernández (Spanish) were the ones with the highest number of publications. The words service(s), fitness and quality were the most evidenced in the titles and keywords of the studies. The most recurrent objective was the analysis of the relationship between service quality and other variables related to the consumer (satisfaction and repurchase intentions, in particular), being potentialized by a current of Spanish theorists. As for the categories that circumscribe the service quality in the fitness industry, twenty have emerged. The two most referenced were intrinsic to human resources (administrative staff and instructors). This shows the relevance of the employees to the service provision; a fact that agrees with the notes of Athanasopoulou (2008). In sequence, those labeled environments, training programs, equipments, convenience and modalities stood out. It is noticed that only one of them (convenience) does not correlate directly with the essential service of a gym. Limitations surround the study, such as the reduced number of databases and driving terms considered for the execution of the systematic review. Therefore, the findings are demarcated by the criteria used, including the time interval. Nevertheless, it provides insights for theorists in the field of strategic service operations management. It recommends replicating the methodology of the work, expanding to different databases. This will enable a more holistic and profound understanding of the evolution of the service quality concept in the fitness segment. Finally, the theoretical structure that this study presented to define service quality in gyms pointed to human resources as one of the central elements. Immersed in this direction, it is recommended that future studies investigate whether or not the actual impact of this variable differs from other dimensions. Multivariate techniques can be applied for this purpose, for example, regression analysis or modeling with structural equations. Another way would be to investigate whether this factor structure is robust from replications in different cultures by applying confirmatory factorial analysis. 1![Figure 1: Methodological Design](image-2.png "Figure 1 :") 2![Figure 2: Network of co-authorship](image-3.png "Figure 2 :") ![7 and 6 incidences respectively. Besides, six articles did not indicate keywords and are linked exclusively to one of the following journals: Journal of Sports Management, International Journal of Retail & Distribution Management and International Sports Journal. The average number of references used in the articles was 50.95, with a standard deviation of 27.48. There are indications that the grouping of articles presented a well-dispersed behavior. The article with the largest contingent had 102 references, while 9 shows the lowest value found in the studies. The most cited work, among the twenty analyzed, was one whose authorship belongs to Daeshik Kim and Susan Y. Kim, entitled QUESC: An Instrument for Assessing the Service Quality of Sport Centers in Korea. In eleven papers this phenomenon occurred, possibly because it was one of the first academic writings (1995) in the area. Besides this, underline the studies of Eddie Lam, James Zhang and Barbara Jensen (6 citations); Yanni Afthinos, Nicholas Theodorakis and Pantelis Nassise (5 citations), both in 2005; as well as those of G. Howat, D. Murray and G. Crilley (1999) and P. Chelladurai, Fiona Scott and John Haywood-Farmer (1987) with four indications each one.](image-4.png "") 1Variables DatabaseF AF RVariables JournalF AF REBSCO11 55%Escritos de Psicología15%Emerald6 30%Holos15%Science3 15% International Journal of Retail & Distribution Management 15%DirectTotal20 100%International Journal of Sports Marketing & Sponsorship15%YearFAFRInternational Sports Journal15%198715%Journal of Park and Recreation Administration15%1995210%Journal of Sport Management420%199815%Managing Service Quality315%199915%Measurement in Physical Education & Exercise Science15%200415%Procedia -Social and Behavioral Sciences15%2005210%Revista de Psicología del Deporte15%200715%Social Behavior and Personality15%200815%Sport Management Review15%201015%Sport, Business and Management: An International Journal15%2012210%Suma Psicológica15%2013315%Total20 100%2014 Total4 20 100% 20%Note: FA : absolute frequency; F R : relative frequency Source:Research (2017) 2Variables CountriesF AF RVariables AuthorsF AF RGreece5 25%Nicholas D. Theodorakis315%EUA5 25%Jerónimo García Fernández315%Spain3 15%Ainara Bernal García210%South Korea2 10%Pinelopi Athanasopoulou210%Susan Y. Kim210%James J. Zhang210%P. Chelladural; Fiona L. Scott; John Haywood-Canada;Farmer; Daeshik Kim; Shahrzad Amirani; JulieAustralia;Baker; Changhwan Kim; G. Howat; D. Murray; G.Portugal;Crilley; Konstantinos Alexandris; Pedro Rodriguez;Sweden;Pedro J. Sarmento; Eddie T. C. Lam; Barbara E.France;Jensen; Yanni Afthinos; Pantelis Nassis; StefanUnited Kingdom; Turkey;1 ** 25%Lagrosen; Yvonne Lagrosen; Alain Ferrand; Leigh Robinson; Pierre Valette-Florence; Gabriel Cepeda Carrión; David Martín Ruíz; Süleyman Murat Yildiz;1 ** 30%Brazil;Ali Kara; Dora Kalogeropoulou; John Douvis;Malaysia;Alejandro Lara; Pablo Galán; E. Pereira Filho; D. F.Hong Kong;ChinaTotal100%Note: (Campos; M. L. R. Dantas; Sevastia Avourdiadou; Jesús Fernández Gavira; A.L. Rozita; A. A. Nor Zana; H. Khairulzaman; A. H Norlizah; Hyun Soon Yu; Dae Hyun Kim; Kenny K. Chen; Chris Henderson; Sophia D. Min; Haiyan Huang * ) 45 authors have only one publication ( ** ) 11 countries have only one publication F A : absolute frequency; F R : relative frequency Source: Research (2017) 3Variables InstitutionF AF RAristotle University of Thessaloniki (Greece)420%University of Sevilla (Spain)315%University of Peloponnese (Greece)210%Democritus University of Thrace (Greece)210%University of Texas (EUA)210%University of Athens (Greece) 4LabelAuthors (year)JournalFIFI PNCNC PE1Chelladurai et al. (1987)Journal of Sport Management0.6840.3821040.376E2Kim and Kim (1995)Journal of Sport Management0.6840.3822972.727E3Amirani and Baker (1995)International Journal of Retail & Distribution Management0.5430.07620-0.648E4Kim and Kim (1998)Journal of Sport Management0.6840.38251-0.270E5Howat et al. (1999)Journal of Park and Recreation Administration0.000-1.1051841.351E6Theodorakis et al. (2004)International Sports Journal0.000-1.10558-0.185E7Lam et al. (2005)Measurement in Physical Education & Exercise Science0.320-0.4091480.912E8Afthinos et al. (2005)Managing Service Quality1.2861.6912281.887E9Lagrosen and Lagrosen (2007)Managing Service Quality1.2861.69173-0.002E10Athanasopoulou (2008)Managing Service Quality1.2861.69140-0.404E11Ferrand et al. (2010)Journal of Sport Management0.6840.3821030.364E12García Fernández et al. (2012)Revista de Psicología del Deporte0.440-0.14843-0.367E13Yildiz and Kara (2012)International Journal of Sports Marketing & Sponsorship0.394-0.24823-0.611E14Athanasopoulou et al. (2013)Sport, Business and Management: An International Journal0.000-1.1056-0.818E15García et al. (2013)Escritos de Psicología0.000-1.10515-0.709E16Pereira Filho et al. (2013)Holos0.000-1.1051-0.879E17Avourdiadou and TheodorakisSport Management Review1.1931.48929-0.538 BusinessThe geographic positioning of the gym within the municipality in which it operates.E7, E14, E16, E20.VarietyDiversity of equipment available at the gym.E1, E3, E7, E16, E20.ModernityAvailability of new equipment recently launched in the market.E5, E7, E10, E11, E12, E13, E16, E20.EquipmentsQuantityNumber of equipment available at the gym.E7, E12, E16, E20.Layout MaintenancePhysical arrangement of equipment available at the fitness center. State of conservation of equipment available at the fitness center.E10, E16. E5, E12, E14, E15, E16.Year 2020E2, E4, E5, E6, E7, E8,EnvironmentalTraces of luminosity, ventilation, smell; sensory aspects thatE11, E12, E13, E14,Environmentscomfort Physical dimensions Maintenancemake the spaces of the gym pleasurable to the consumer. Adequacy of the size of the spaces to the number of clients. E1, E2, E4, E7, E8, E9, E15, E16, E18, E19, E20. E12, E13, E15, E20. State of conservation of training rooms, snack bar; of all the E5, E7, E13, E16, E19, spaces of the fitness center. E20.Volume XX Issue III Version I( )Administrative staffMusic Attendance Know-how Complaints and conflicts Appearance Quantity Home time Emergency episodesStyle and volume of music present in the fitness center. Treatment with which the clients are received by the administrative employees during the service. The technical knowledge of the administrative employees to carry out their work activities. How administrative employees receive, record, and route solutions to customer complaints and conflicts. Clothing and neatness with which employees introduce themselves to customers. Number of employees that compose administrative staff of the gym. Time that the employee has bonded with the gym. Ability of the administrative staff to act in emergency situations.E14, E18. E2, E4, E7, E8, E10, E14, E16, E20. E1, E2, E3, E4, E5, E6, E7, E8, E9, E10, E11, E12, E13, E14, E15, E16, E18, E19, E20. E1, E3, E5, E7, E15, E20. E2, E4, E7, E8, E10, E14, E16, E20. E7, E16, E20. E11, E16. E10. E16.Global Journal of Management and Business ResearchMaintenanceThe state of conservation of the locker rooms and bathrooms of the fitness center.E1, E7, E13, E20.Locker roomsQuantityAvailable quantity of locker rooms, bathrooms and showers in the gym.E10, E13, E16.PleasantnessHow pleasant, for customers, are the locker rooms, bathrooms of the gym.E2, E3, E4, E7, E8, E20.G © 2020 Global Journals * Customers' expectations of service in Greek fitness centers: Gender, age, type of sport center, and motivation differences YAfthinos NDTheodorakis PNassis Managing Service Quality: an International Journal 15 3 2005 * An empirical investigation of the relationships among service quality, customer satisfaction and psychological commitment in a health club context KAlexandris PZahariadis CTsorbatzoudis GGrouios European Sport Management Quarterly 4 1 2004 * Quality cues and retail target market strategy: a conjoint-based application SAmirani JBaker International Journal of Retail & Distribution Management 23 5 1995 * Antecedents and consequences of relationship quality in athletic services PAthanasopoulou Managing Service Quality: an International Journal 18 5 2008 * Relationship quality in sports: a study in football teams and fitness centres PAthanasopoulou DKalogeropoulou JDouvis An International Journal 3 2 2013 Sport, Business and Management * The development of loyalty among novice and experienced customers of sport and fitness centres SAvourdiadou NDTheodorakis Sport Management Review 17 4 2014 * Obesity, weight management, and health care costs: a primer KHBachman Disease Management 10 3 2007 * Dimensions of Fitness Services: Development of a Model PChelladural FLScott JHaywood-Farmer Journal of Sport Management 1 2 1987 * The intention-to-repurchase paradox: A case of the health and fitness industry AFerrand LRobinson PValette-Florence Journal of Sport Management 24 1 2010 * Introdução à pesquisa qualitativa UFlick 2009 Artmed, Porto Alegre, Brazil * La calidad percibida de servicio y su influencia en la fidelidad de usuarios mayores en centros de fitness públicos JGarcía ABernal ALara PGalán Escritos de Psicología 6 2 2013 * La satisfacción de clientes y su relación con la percepción de calidad en Centro de Fitness: utilización de la escala CALIDFIT1 JGarcía Fernández GCCarrión DMartín Ruíz Revista de Psicología del Deporte 2012 21 * La percepción de calidad y fidelidad en clientes de centros de fitness low cost JGarcía Fernández JFGavira ABGarcía Suma Psicológica 21 2 2014 * Diffusion of Innovations in Service Organizations: Systematic Review and Recommendations TGreenhalgh GRobert FMacfarlane PBate OKyriakidou The Milbank Quarterly 82 4 2004 * Perceived barriers and facilitators to mental health help-seeking in young people: a systematic review AGulliver KMGriffiths HChristensen BMC psychiatry 10 1 2010 * The relationships between service problems and perceptions of service quality, satisfaction, and behavioral intentions of Australian public sports and leisure center customers GHowat DMurray GCrilley Journal of Park & Recreation Administration 17 2 1999 * Three Approaches to Qualitative Content Analysis HFHsieh SEShannon Qualitative Health Research 15 9 2005 * This Week in the Fitness Industry: Health Club Industry Exceeds 66M Consumers, an All-Time High 2017. April 2017 15 IHRSA, International Health and Racquet Sports club Association * QUESC: An instrument for assessing the service quality of sport centers in Korea DKim SYKim Journal of Sport Management 9 2 1995 * Segmentation of sport center members in Seoul based on attitudes toward service quality CKim SYKim Journal of Sport Management 12 4 1998 * Exploring service quality in the health and fitness industry SLagrosen YLagrosen An International Journal 17 1 2007 * Service Quality Assessment Scale (SQAS): An instrument for evaluating service quality of healthfitness clubs ETLam JJZhang BEJensen Measurement in physical education and exercise science 2005 9 * The PRISMA statement for reporting systematic reviews and meta-analyses of studies that evaluate health care interventions: explanation and elaboration ALiberati DGAltman JTetzlaff CMulrow PCGotzsche JPIoannidis ..Moher D PLoS medicine 6 7 2009 * Preferred reporting items for systematic review and metaanalysis protocols (PRISMA-P) 2015 statement DMoher LShamseer MClarke DGhersi ALiberati LAStewart Systematic Reviews 4 1 2015 * SERVQUAL: A multiple-Item Scale for measuring consumer perceptions of service quality AParasuraman VAZeithaml LLBerry Journal of retailing 64 1 1988 * Mensuração da qualidade de serviço em academias de ginástica: das escalas padronizadas ao desenvolvimento de uma escala específica EPereira Filho DFCampos ML RDantas HOLOS 5 2013 * Impact of Sport Complex Services towards Costumer Behaviour in Terengganu ALRozita HKhairulzaman AANor Zana NAHamid Procedia -Social and Behavioral Sciences 153 2014 * Costeffectiveness of lifestyle and structured exercise interventions in sedentary adults MASevick ALDunn MSMorrow BHMarcus GJChen SNBlair American journal of preventive medicine 19 1 2000 * Media roles in suicide prevention: a systematic review MSisask AVärnik International journal of environmental research and public health 9 1 2012 * Measuring Customer Satisfaction in the Context of Health clubs in Portugal NDTheodorakis KAlexandris PM MRodrigues PJSarmento International Sports Journal 8 1 2004 * Towards a methodology for developing evidenceinformed management knowledge by means of systematic review DTranfield DDenyer PSmart British Journal of Management 14 3 2003 * A re-examination and extension of measuring perceived service quality in Physical Activity and Sports Centres (PSC): QSport-14 scale SMYildiz AKara International Journal of Sports Marketing and Sponsorship 13 3 2012 * Service Quality, Perceived Value, Customer Satisfaction, and Behavioral Intention Among Fitness Center Members Aged 60 Years and Over HSYu JJZhang DHKim KKChen CHenderson SDMin HHuang Social Behavior and Personality: an international journal 42 5 2014