Scientific production on indoor air quality of environments used for physical exercise and sports practice: Bibliometric analysis.

INTRODUCTION: In order to minimize adverse health effects and increase the benefits of physical activity, it is important to systematize indoor air quality study in environments used for physical exercise and sports. OBJECTIVES: To investigate and analyze the scientific production related to indoor air quality of environments used for physical exercise and sports practice through a bibliometric analysis. METHODS: The databases Scielo, Science Direct, Scopus, Lilacs, Medline via Pubmed, and SportDiscus were searched from their inception to March 2016. Bibliometric analysis was performed for authors, institutions, countries, and collaborative networks, in relation to publication year, theme, citation network, funding agency, and analysis of titles and keywords of publications. Country, area, and impact factor of the journals were analyzed. RESULTS: Of 1281 studies screened, 34 satisfied the inclusion criteria. The first publication occurred in 1975. An increase in publications was observed in the last 15 years. Most of the studies were performed by researchers in the USA, followed by Portugal and Italy. Seventeen different scientific journals have published studies on the subject, and most are in the area of Environmental Sciences. It was noted that the categories of author keywords associated with "Pollutants," "Sport Environment," and "Physical Exercise" were the most commonly used in most studies. A total of 68% of the studies had at least one funding agency, and 81% of studies published in the last decade had funding. CONCLUSIONS: Our results demonstrate that there is recent exponential growth, driven in the last decade by researchers in environmental science from European institutions.

Effects of yoga on depressive symptoms, anxiety, sleep quality, and mood in patients with rheumatic diseases: Systematic review and meta-analysis.

OBJECTIVE: To investigate the effects of yoga on depressive symptoms, anxiety, sleep quality, and mood of patients with rheumatic diseases through a systematic literature review with meta-analysis. LITERATURE SURVEY: This review followed the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) Statement and the Cochrane recommendations and risk of bias tool. The study was registered in the International Prospective Register of Systematic Reviews (PROSPERO). Studies were selected using the PICOS (participants, intervention, comparison, outcome, and study) strategy. Searches were carried out until March 2022 and performed in Web of Science, PubMed, SportDiscus, Scopus, Cochrane, and EBSCO databases. METHODOLOGY: Data were extracted to identify the differences between yoga and control and exercise groups and effect sizes. SYNTHESIS: In total, 27 studies were included for qualitative analysis and 18 for meta-analysis. The studies found investigated yoga in patients with osteoarthritis, fibromyalgia, rheumatoid arthritis, and chronic fatigue syndrome. Regarding the risk of bias, the majority of studies showed a high risk or uncertain risk of bias in several criteria. Regarding the meta-analysis, yoga was favored to decrease depressive symptoms (standard mean difference [SMD]:-0.88; 95% confidence interval [CI]:-1.42; -0.34), anxiety (SMD: -0.51; 95% CI = -0.81 to -0.20), and improve sleep quality SMD = -0.96; 95% CI = -1.36 to -0.56). No differences were found between yoga and other exercise modalities in depression (p < .01). CONCLUSIONS: Yoga is effective in improving depression, anxiety, and sleep quality of patients with rheumatic diseases. However, research in this field still needs further studies, because of methodological issues in the studies and a reduced number of studies conducted on each rheumatic disease and on the effects of yoga on each variable.

Acute effect of strength training on pain in women with fibromyalgia: A brief report.

OBJECTIVE: The aim was to analyze the effect of one session and three sessions of strength training (ST) on pain in women with fibromyalgia (FM). METHOD: Twenty-three women with FM performed three sessions of ST for a week. Each training session worked the main muscle groups and lasted 60 min. Three sets of 12 repetitions were performed with 1 min intervals in between. The load was increased based on the perception of subjective effort of each patient. Pain intensity was evaluated immediately after the first and third sessions using a Fischer digital algometer. RESULTS: After the first ST session, pain reduction was observed. No significant differences were found in pain thresholds on the baseline versus the third session. The analysis of MBI demonstrated that the ST does not worsen patients' pain, indicating a 52.2% trivial effect and a 39.1% beneficial effect. CONCLUSION: Our results suggest that there is no harmful effect on the pain of women with FM after an acute session of ST. We emphasize that despite the promising results, more studies on the subject are needed to help understand pain in patients with FM.

Use of latent class analysis as a method of assessing the physical activity level, sedentary behavior and nutritional habit in the adolescents' lifestyle: A scoping review.

BACKGROUND: Currently, adolescents' lifestyle is commonly characterized by physical inactivity, sedentary behavior, and inappropriate eating habits in general. A person-oriented approach as Latent Class Analysis (LCA) can offer more insight than a variable-centered approach when investigating lifestyle practices, habits, and behaviors of adolescent population. OBJECTIVE: The aim of the present study was to assess which variables are mostly used to represent the physical activity level, sedentary behavior SB) and nutritional habit in the adolescents' lifestyle in studies that used the LCA. DESIGN: Scoping review. METHODS: The study was a performed in accordance with the proposed criteria for systematic reviews and meta-analyses-Preferred Reporting Items for Systematic Reviews and Meta-Analyses and registered in PROSPERO (CRD42018108444). The original articles were searched in MEDLINE/PubMed, Scopus, ScienceDirect, Web of Science, PsycINFO, and SPORTdiscus. The Quality Assessment Tool analyzed the risk of bias of the included studies. RESULTS: 30 original articles were selected. The physical activity level (28 studies), SB and nutritional habits (18 studies) were the most common variable used to evaluate the adolescent's lifestyle by LCA model. Specifically, physical inactivity and high SB were the manifest variables with higher frequency in the negative latent classes (LCs) in adolescent girls. On the other hand, physical exercises and sports were activities more commonly labeled as positive LCs. CONCLUSIONS: The LCA models of the most of selected studies showed that physical inactivity, high SB were the most common in the LCs with negative characteristics of the adolescents' lifestyle. Better understanding the results of analyzes of clusters of multivariate behaviors such as the LCA can help to create more effective strategies that can make the lifestyle of adolescents healthier.

Impact of Problematic Smartphone Use on Mental Health of Adolescent Students: Association with Mood, Symptoms of Depression, and Physical Activity.

Problematic smartphone use in adolescent students can impair their mental health and behavior, thereby affecting academic performance and interpersonal relationships as well as reducing time spent on physical activity. This study investigated the association between problematic smartphone use and mood, symptoms of depression, and level of physical activity in adolescent students. The sample consisted of 308 boys (46.1 percent, 16.04 ± 1.30 years) and 359 girls (53.9 percent, 15.54 ± 1.44 years), aged 13-18 years (15.77 ± 1.40 years). Four instruments were used: the Sociodemographic, School, and General Health Characteristics Questionnaire; Smartphone Addiction Scale (to measure problematic smartphone use); Brunel Mood Scale; and Beck Depression Inventory. The study found that physically inactive adolescent students were more likely to present with problematic smartphone use than those who were physically active, and girls were more likely to exhibit problematic smartphone use than boys. Adolescent students with problematic smartphone use presented with more mood disturbances and symptoms of depression than did adolescent students without problematic smartphone use. Overall, physical inactivity and problematic smartphone use can reduce vigor and increase symptoms of depression in adolescent students.

Effects of resistance training on the health-related quality of life of patients with rheumatic diseases: Systematic review with meta-analysis and meta-regression.

OBJECTIVE: To investigate the effects of resistance training on the health-related quality of life (HR-QoL) of patients with rheumatic diseases through a systematic review with meta-analysis and meta-regression. METHOD: Until 31 August 2018, systematic searches were carried out in the following databases: PubMed, Web of Science, SportDiscus, Scopus, and Cochrane Library. Clinical trials examining the effects of resistance training on the HR-QoL of patients with rheumatic diseases were collected. The effects were calculated using the standardized mean difference of HR-QoL and the domains of the Short Form Health Survey 36 (SF-36) questionnaire (i.e., physical component, mental component, functional capacity, limitations due to physical aspects, limitations due to emotional aspects, social aspects, mental health, general health, pain and vitality). RESULTS: A total of 32 studies were included. The studies analyzed the general HR-QoL by using several instruments, with many of them using SF-36. The meta-analysis included 29 studies, and the results indicated that resistance training improves the general HR-QoL (p < 0.01, d = -0.50, 95% CI: -0.70 to -0.30), the physical role functioning (p < 0.01, d = 0.41, 95% CI: 0.20 to 0.61), physical functioning, social aspects, and body pain (p = 0.03, d = 0.72, 95% CI: 0.09 to 01.34; p = 0.04, d = 0.27, 95% CI: 0.01 to 0.53; and p = 0.01, d = 0.31, 95% CI: 0.07 to 0.55, respectively) compared with control group. CONCLUSIONS: The findings suggest that resistance training effectively improves the HR-QoL of patients with rheumatic diseases, including physical role functioning, physical functioning, social aspects, and body pain. Further studies are needed on some of the rheumatic diseases, particularly chronic fatigue and lupus.

Preferred exercise and mental health of the patients with fibromyalgia syndrome.

BACKGROUND AND PURPOSE: Preferred exercise may be beneficial for the mental health of patients with fibromyalgia syndrome (FMS).This study aimed to investigate the effects of preferred exercise on the quality of life (Qol), depression, and mood states of the patients with FMS. MATERIALS AND METHODS: This study was a nonrandomized controlled trial. The patients with FMS were divided into an experimental group (EG; n = 22) and a control group (CG; n = 14). The patients in the EG performed their preferred exercise (resistance, walking, or stretching) for 12 weeks. CG went to a waiting list. Fibromyalgia Impact Questionnaire, Beck Depression Inventory, and Brunel Mood Scale were used to evaluate the outcomes. RESULTS: The EG exhibited a decrease in the total impact of FMS on the Qol, depression, tension, and mental confusion (p < 0.01). CONCLUSION: Preferred exercises reduced the impact of FMS on the Qol, depression, and mental confusion of patients with FMS.

The relationship between sleep quality and fibromyalgia symptoms.

This study investigated the relationship between sleep quality and fibromyalgia symptoms in 326 patients. The Pittsburgh Sleep Quality Index was used to assess the presence of sleep disorders. Multivariate analysis of variance was performed to determine the influence of fibromyalgia symptoms on sleep quality. The prevalence of sleep disorders was 92.9 percent. Patients reported generalized pain (88.3%), memory failure (78.5%), moodiness (59%), excessive anxiety (77.5%), and concentration difficulties (69.1%). Patients with more symptoms reported poor sleep quality (p < .05; d = .74), and the total Pittsburgh Sleep Quality Index score correlated with the number of symptoms (p < .01). Sleep quality has an important association with fibromyalgia symptoms.

The Psychological Effects of Exergames for Children and Adolescents with Obesity: A Systematic Review and Meta-Analysis.

The systematic review and meta-analysis were conducted to analyze the psychological effects of exergames for children and adolescents with overweight or obesity. In August 2018, the electronic databases searched were PubMed, Scopus, Web of Science, SPORTDiscus, Science Direct, CINAHL, and PsycINFO. The eligibility criteria were defined according to the population, intervention, comparison, outcome, and study design. In relation to the population, only studies with children or adolescents with overweight or obesity and without any other comorbidities were analyzed. Only publications in English were considered. Nine studies were selected. The comparisons identified were in relation to weight, type of activity, and play style versus control and preintervention. The magnitude of effect size suggests that the practice of exergaming has a small effect on psychological outcomes. Furthermore, cooperative games produced greater attraction to the game (g = 4.71, 95% confidence interval [CI] = 3.23-6.19) and greater intrinsic motivation (g = 5.29; 95% CI = 3.68-6.90). It was verified that self-esteem (standard mean difference [SMD] = 0.37; 95% CI = 0.09-0.66), and self-efficacy (SMD = 0.42; 95% CI = 0.06-0.79) improved after playing an exergame. This systematic review and meta-analysis suggest that exergames may be effective in improving psychological aspects of children and adolescents with overweight or obesity. Given the limited number of studies, it is essential to increase scientific research in this area.

Effect of yoga on the quality of life of patients with rheumatic diseases: Systematic review with meta-analysis.

AIM: To analyze the effects of yoga on the quality of life of patients with rheumatic diseases through a systematic review with meta-analysis. METHODS: This systematic review with meta-analysis was conducted following the recommendations of the Declaration of PRISMA. The searches were carried out on the databases PubMed, Web of Science, EBSCO, Scopus, and Cochrane until August 2018. Experimental studies evaluating the effect of yoga on the quality of life in patients with rheumatic diseases were included. RESULTS: After data searches, 483 studies were found, 23 of which were included in our analysis. We found that yoga improves the overall quality of life (d= -0.64; 95% CI: -0.91 to 0.038) of patients with rheumatic diseases, as well as the following domains: functional capacity (d = 16.43; 95% CI: 13.37-19.49), physical aspects (d = 27.11; 95% CI: 19.40-34.83), emotional aspects (d = 26.00; 95% CI: 18.87-33.13), general health (d = 16.61; 95% CI: 12.66-20.55), and social aspects (d = 7.01 ; 95% CI: 5.57-9.45). CONCLUSION: Evidence suggests weak recommendations can be made for the use of yoga in the management of RD patients.

Brazilian journal of sports medicine: 10 years of indexation on the web of science / Revista brasileña de medicina del deporte: 10 años de indexación en la web of science / Revista brasileira de medicina do esporte: 10 anos de indexação na web of science

ABSTRACT Analyses of scientific production have attracted the interest of researchers, as they help to control the quality of what is published, identify relevant themes, and, thus enable scientific advances. Therefore, the objective of this study was to analyze the scientific production of the Brazilian Journal of Sports Medicine on the Web of Science database through a bibliometric analysis. The data were analyzed in relation to the publications, the authors, and the RBME. During the period of indexation on the Web of Science, which corresponds to the last decade, the RBME published 896 documents, most of which were original articles (801, 89.3%). The most cited keywords were exercise (117 studies), resistance training (37), and physical activity (34). Brazilian institutions had the highest number of publications, followed by Portugal and Spain, and there were also articles published in the USA, Canada, and the United Kingdom. USP and UNESP were the institutions with the greatest number of publications in the RBME over the last decade. Ten different collaboration clusters were identified, with researcher Edilson Serpeloni Cyrino standing out with the largest collaboration network. The ten years of indexation on the Web of Science reveal the consolidation of the RBME on the international scene, which has resulted in increasing views of and citations from the studies published, as well as attracting researchers from institutions of other countries to publish their work. Level of evidence II; Review.

RESUMEN Los análisis sobre la producción científica han despertado el interés de investigadores, pues auxilian en el control de la calidad de aquello que es publicado, identificando temas relevantes y auxiliando así los avances científicos. Por lo tanto, el objetivo del estudio fue analizar la producción científica de la Revista Brasileña de Medicina del Deporte (RMBE) en la Web of Science (WoS) a través de un análisis bibliométrico. Se analizaron los datos relativos a las publicaciones, a los autores y a RMBE. En el período de indexación en la WoS, correspondiente a la última década, la RBME publicó 896 documentos, siendo la mayoría artículos originales (801, 89,3%). Las palabras clave más citadas fueron exercise (117 estudios), resistance training (37) y physical activity (34). Las instituciones de Brasil fueron las que más publicaciones presentaron, seguidas de Portugal y España, con publicaciones también en Estados Unidos, Canadá y Reino Unido, entre otros. La USP y UNESP fueron las instituciones con mayor número de publicaciones en RMBE en la última década. Se identificaron diez grupos de colaboración diferentes, destacándose el investigador "Edilson Serpeloni Cyrino", con la mayor red de colaboración. Los 10 años de indexación de la RBME en la Web of Science revelan la consolidación de la revista en el escenario internacional, repercutiendo en el aumento de visualizaciones y citas de los estudios publicados, además de atraer a investigadores de instituciones de otros países para publicar sus trabajos. Nivel de evidencia II; Revisión.

RESUMO Análises sobre a produção científica têm despertado o interesse de pesquisadores, pois auxiliam no controle da qualidade do que é publicado, identificando temas relevantes, e assim, auxiliando avanços científicos. Diante disso, o objetivo do estudo foi analisar a produção científica da Revista Brasileira de Medicina do Esporte na Web of Science (WoS) por meio de uma análise bibliométrica. Os dados foram analisados com relação às publicações, aos autores e à RBME. No período de indexação na WoS, correspondente a última década, a RBME publicou 896 documentos, sendo a maioria artigos originais (801, 89,3%). Os descritores mais citados foram exercise (117 estudos), resistance training (37) e physical activity (34). Instituições do Brasil foram as que mais apresentaram publicações, seguidas de Portugal e Espanha, tendo ainda publicações nos EUA, Canadá e Reino Unido, entre outros. A USP e a UNESP foram as instituições com maior número de publicações na última década na RBME. Dez diferentes grupos de colaboração foram identificados, destacando-se o pesquisador "Edilson Serpeloni Cyrino", com a maior rede de colaboração. Os 10 anos de indexação da RBME na Web of Science revelam a consolidação do periódico no cenário internacional, repercutindo no aumento de visualizações e citações dos estudos publicados, além de atrair pesquisadores de instituições de outros países para publicarem seus trabalhos. Nível de evidência II; Revisão.

Acute effects of physical exercises on the inflammatory markers of patients with fibromyalgia syndrome: A systematic review.

OBJECTIVE: In patients with fibromyalgia (FM), exercise is indicated for symptomatic treatment. However, little is known about the inflammatory response to acute exercise in these patients. This study examines the acute effects of exercise on the inflammatory response in patients with FM. METHODS: A systematic review was conducted using PubMed, PsycINFO, Web of Science, SportDiscus, Scopus, Virtual Health Library (VHL), and Cochrane Library databases. RESULTS: Six studies that met the inclusion criteria were included in the analysis; three of them evaluated the effects of resistive exercise, while three evaluated the effects of aerobic exercise. Several studies evaluated pro-inflammatory (interleukin [IL]-6, IL-8, IL-1ß, IL-18, tumor necrosis factor-α) and anti-inflammatory cytokine levels (IL-10) and stress (Hsp72) protein levels before and after the intervention with exercise. Studies found a low-grade baseline chronic inflammatory state in patients with FM, demonstrated by the alteration of one or more of the studied markers. CONCLUSIONS: We suggest that patients with FM probably have low-grade chronic inflammation, because studies found higher concentrations of IL-8 and TNF-α and high expression of IL-10 in these patients; however, the effects of exercise on the inflammatory markers in these patients are unclear. Although more research is needed on the effect of exercise on inflammation, none of the studies reported worsening of symptoms with exercise recommended as treatment.

Strength training in patients with fibromyalgia: a feasibility study / Entrenamiento de fuerza en pacientes con fibromialgia: un estudio de factibilidad / Treinamento de força em pacientes com fibromialgia: um estudo de viabilidade

ABSTRACT Introduction: Fibromyalgia syndrome (FM) is characterized by the presence of diffuse pain lasting for more than three months and is often associated with sleep disorders. Studies have investigated the effect of strength training (ST) on pain and sleep quality in FM patients, but there continue to be diverse perspectives on the effects of this intervention in this population. Objective: The aim of the study was to examine the effects of strength training (ST) on pain and sleep quality in FM patients. Methods: Forty-eight women with FM participated in the study between August and October, 2012. Six (55±6.5 years) performed ST, conducted at Santa Catarina State University, and eight (47±9 years) comprised the control group. The Socio-Demographic and Clinical Questionnaire, the visual analog scale (VAS) for pain, and the Pittsburgh Sleep Quality Index were used. Data were collected before the first session and after the eight-week intervention and were analyzed using descriptive statistics and inferential tests. Results: The eight- week ST intervention decreased pain (p< 0.05) and significantly diminished the daytime sleep dysfunctions (p< 0.05), demonstrating that the proposed program contributes to improving patient quality of life. Conclusion: ST is a feasible treatment for patients with fibromyalgia. Level of evidence II; Therapeutic study.

RESUMEN Introducción: El síndrome de fibromialgia (FM) se caracteriza por la presencia de dolor difuso de más de tres meses de duración y suele asociarse a trastornos del sueño. Los estudios han investigado el efecto del entrenamiento de fuerza (ST) sobre el dolor y la calidad del sueño en pacientes con FM, pero todavía existen diversas perspectivas respecto a los efectos de esta intervención en esta población. Objetivos: El objetivo del estudio fue examinar los efectos del entrenamiento de fuerza sobre el dolor y la calidad del sueño de los pacientes con FM. Métodos: Cuarenta y ocho mujeres con FM participaron en el estudio entre agosto y octubre de 2012. Seis (55 ± 6,5 años) se sometieron a un entrenamiento de fuerza realizado en la Universidad del Estado de Santa Catarina, y ocho (47 ± 9 años) constituyeron el grupo de control. Se utilizó el Cuestionario sociodemográfico y Clínico, la escala visual analógica (EVA) para el dolor y el Índice de Calidad del Sueño de Pittsburgh. Los datos fueron recopilados antes de la primera sesión y después de la intervención de ocho semanas y se analizaron mediante estadísticas descriptivas y pruebas de inferencia. Resultados: La intervención de ocho semanas con ST disminuyó el dolor (p <0,05) y redujo significativamente los trastornos del sueño durante el día (p <0,05), lo que demuestra que el programa propuesto contribuye a mejorar la calidad de vida de los pacientes. Conclusión: El entrenamiento de fuerza es un tratamiento viable para pacientes con fibromialgia. Nivel de evidencia II; Estudios terapéuticos.

RESUMO Introdução: A síndrome da fibromialgia (FM) é caracterizada pela presença de dor difusa com duração de mais de três meses e, frequentemente, é associada a distúrbios do sono. Estudos investigaram o efeito do treinamento de força (ST) sobre a dor e a qualidade do sono dos pacientes com FM, mas ainda existem diversas perspectivas quanto aos efeitos da intervenção nessa população. Objetivos: O objetivo do estudo foi examinar os efeitos do treinamento de força (ST) sobre a dor e a qualidade do sono de pacientes com FM. Métodos: Quarenta e oito mulheres com FM participaram do estudo entre agosto e outubro de 2012. Seis (55 ± 6,5 anos) realizaram treinamento de força, conduzido na Universidade Estadual de Santa Catarina, e oito (47 ± 9 anos) constituíram o grupo controle. Foram empregados o Questionário Sociodemográfico e Clínico, a escala visual analógica (EVA) para dor e o Índice de Qualidade do Sono de Pittsburgh. Os dados foram coletados antes da primeira sessão e depois da intervenção de oito semanas e foram analisados por meio de estatística descritiva e testes inferenciais. Resultados: A intervenção de 8 semanas com ST diminuiu a dor (p < 0,05) e reduziu significativamente as disfunções diurnas do sono (p <0,05), demonstrando que o programa proposto contribui para melhorar a qualidade de vida dos pacientes. Conclusão: O ST é um tratamento viável para pacientes com fibromialgia. Nível de evidência II; Estudo terapêutico.

Does volume of physical exercise have an effect on depression in patients with fibromyalgia?

BACKGROUND: Fibromyalgia Syndrome (FMS) is a musculoskeletal disorder frequently associated with depression. We aimed to investigate the association between physical exercise (PE) and depression in patients with FMS, and to evaluate the effect of the weekly volume of PE on depression. METHODS: A total of 215 FMS patients with depression were evaluated with the Beck Depression Inventory, and were also classified as inactive, insufficiently active, or active. We performed binary logistic regression, with PE as the dependent variable and the level of depression as an independent variable. We also used the Mann-Whitney U test. An alpha value of 0.05 was determined to have significance (p<0.05). RESULTS: Inactive patients with FMS have a higher rate of moderate to severe depression (29.1%) and major depression (25%) when compared with active patients. In comparing the depression index between inactive, insufficiently active, and active FMS patients according to the reported weekly volume of PE, we observed differences between inactive and active patients (p=0.035). The level of depression was positively associated with physical inactivity in FMS, and FMS patients with severe depression had 3.45 1.23-9.64) times the likelihood of being inactive than patients without depression or with minimal depression. LIMITATIONS: The classification of PE does not distinguish between types of PE, or whether differences in activity can have different results in depression. CONCLUSION: There was an association between PE and lower values of depression in patients with FMS, and the level of depression was positively and significantly associated with physical inactivity.

Scientific production in sports science journals: bibliometric analysis / Produção científica nos periódicos das ciências do esporte: análise bibliométrica / Producción científica en los periódicos de ciencias del deporte: análisis bibliométrico

ABSTRACT The aim of this study was to analyze the scientific production of journals on sport and exercise science and physical education in Portuguese that are indexed in the Scopus database by conducting a bibliometric analysis. Six journals related to this field of study and indexed in the Scopus database were selected. Regarding publications, the journals published 3,869 documents while indexed in Scopus, most (90.8%) of which were original articles. The year with the highest number of publications was 2013 (n = 473). The clusters of keywords that were cited most often ("physical activity" and "exercise") were related to biodynamics. Most journal authors are from Brazil (89.86%). The Brazilian Journal of Sports Medicine had the highest number of publications (n = 1179), the highest average per year (n = 78.6), and reached the highest index in the scientific journal ranking (SJR index = 0.331). We concluded that scientific production increased until 2013. The publications with the highest number of citations and the most common study topics are related to the area of biodynamics. Level of evidence II; Review Study.

RESUMO O presente estudo tem como objetivo analisar a produção científica de periódicos das ciências do esporte, do exercício e da Educação Física (CEEEF), na língua portuguesa, indexados no SCOPUS, através da análise bibliométrica. Foram selecionados seis periódicos relacionados às CEEEF e indexados no SCOPUS. Em relação às publicações, no período de indexação no SCOPUS, os periódicos publicaram 3.869 documentos, sendo a maioria (90,8%), artigos originais. O ano com o maior número de publicações foi 2013 (n = 473). Os clusters de palavras-chaves que mais apareceram estavam relacionados à biodinâmica: "physical activity" e "exercise". Em relação aos autores, a maioria é do Brasil (89,86%). Em relação aos periódicos, a Revista Brasileira de Medicina do Esporte foi a que mais publicou (n = 1179), com maior média por ano (n = 78,6) e atingiu o maior índice no Scientific Journal Ranking (SJR = 0,331). Percebe-se um crescimento na produção até 2013. As publicações com maior número de citações e os temas mais estudados estão relacionadas à área da biodinâmica. Nível de evidência II; Estudo de Revisão.

RESUMEN El presente estudio tiene como objetivo analizar la producción científica en periódicos de las ciencias del deporte, del ejercicio y de la Educación Física (CEEEF) en idioma portugués, indexados en la base Scopus, a través del análisis bibliométrico. Fueron seleccionados seis periódicos relacionados a las CEEEF indexados en SCOPUS. Con relación a las publicaciones, en el período de indexación en SCOPUS, los periódicos publicaron 3.869 documentos, siendo la mayoría (90,8%) artículos originales. El año con el mayor número de publicaciones fue 2013 (n = 473). Los clusters de palabras clave que más aparecieron estaban relacionados a la biodinámica: "physical activity" y "exercise". Con relación a los autores, la mayoría es de Brasil (89,86%). Con relación a los periódicos, la Revista Brasileña de Medicina del Deporte fue la que más publicó (n = 1179), con mayor promedio por año (n = 78,6) y alcanzó el mayor índice en el Scientific Journal Ranking (SJR = 0,331). Se percibe un crecimiento en la producción hasta 2013. Las publicaciones con mayor número de citaciones y los temas más estudiados están relacionados al área de la biodinámica. Nivel de Evidencia II; Estudio de Revisión.

Burnout in elite tennis players of different junior categories / Burnout em tenistas de elite em diferentes categorias infanto-juvenis / Burnout en tenistas de élite en diferentes categorías infanto-juveniles

ABSTRACT Introduction: Burnout syndrome manifests in athletes in the form of three main symptoms/characteristics: emotional and physical exhaustion, sport devaluation, and reduced sense of accomplishment. Faced with the need to achieve optimum performance, young tennis players are exposed to several stressors than can lead to burnout, yet few reports on burnout in tennis have been researched. Objective: The aim of this study was to analyze burnout in elite tennis players in different junior categories (CAT14, CAT16, CAT18). Methods: A total of 130 athletes, including 102 men (x=15.14±1.3) and 28 women (x=15.04±1.13), were selected for this cross-sectional study. Burnout was measured using a version of the Athlete Burnout Questionnaire (ABQ). Results: CAT18 tennis players had higher rates of overall burnout and sport devaluation compared with CAT16 and CAT14 players. CAT14 and CAT16 players had higher scores for "reduced sense of accomplishment," in association with sport devaluation. Conclusion: Differences found in CAT18 players may reflect the demands of transition from the junior to the professional circuit. Reduced sense of accomplishment should be monitored in athletes, to prevent burnout and cessation of sports activities. Level of Evidence III; retrospective comparative.

RESUMO Introdução: A síndrome de burnout manifesta-se em atletas por meio de três principais sintomas/características: exaustão emocional e física, desvalorização esportiva e senso de realização reduzido. Diante da necessidade de obter um desempenho ideal, jovens tenistas estão expostos a fatores de estresse que podem levar ao burnout, porém poucos estudos sobre o burnout no tênis têm sido pesquisados. Objetivo: O objetivo deste estudo foi analisar o burnout em tenistas de elite em diferentes categorias infanto-juvenis (CAT14, CAT16, CAT18). Métodos: No total, 130 atletas, incluindo 102 homens (x=15,14±1,3) e 28 mulheres (x=15,04±1,13), foram selecionados para este estudo transversal. O burnout foi medido usando o Questionário de Burnout para Atletas (QBA). Resultados: Os tenistas da CAT18 apresentaram níveis mais altos de burnout geral e desvalorização esportiva com relação aos jogadores da CAT16 e CAT14. Os atletas da CAT14 e CAT16 apresentaram níveis mais altos de "senso de realização reduzido" em associação com a desvalorização esportiva. Conclusões: As diferenças encontradas nos atletas da CAT18 podem refletir as demandas de transição do circuito júnior para o profissional. A percepção de realização reduzida deve ser monitorada nos tenistas para evitar burnout e abandono das atividades esportivas. Nível de Evidência III; Estudo retrospectivo comparativo.

RESUMEN Introducción: El síndrome de burnout se manifiesta en atletas por medio de tres principales síntomas/características: agotamiento emocional y físico, devaluación del deporte, y sentido de realización reducido. Ante la necesidad de obtener un rendimiento ideal, los jóvenes tenistas están expuestos a factores de estrés que pueden conducir al burnout, pero pocos estudios sobre el burnout en el tenis han sido investigados. Objetivo: El objetivo de este estudio fue analizar el burnout en tenistas competitivos de élite en diferentes categorías infanto-juveniles (CAT14, CAT16, CAT18). Métodos: En total, 130 atletas, incluyendo 102 hombres (x=15,14±1,3) y 28 mujeres (x=15,04±1,13), fueron seleccionados para este estudio transversal. El burnout fue medido usando el Cuestionario de Burnout para Atletas (CBA). Resultados: Los tenistas de la CAT18 presentaron niveles más altos de burnout general y devaluación deportiva con relación a los jugadores de la CAT16 y CAT14. Los jugadores de la CAT14 y CAT16 presentaron niveles más altos de "sentido de realización reducido" en asociación con la devaluación deportiva. Conclusiones: Las diferencias encontradas en los jugadores de la CAT18 pueden reflejar las demandas de transición del circuito júnior al profesional. La percepción de baja realización debe ser monitoreada en estos tenistas, para evitar burnout y abandono de las actividades deportivas. Nivel de Evidencia III; Estudio retrospectivo comparativo.

Brazilian version (acsi-28br) of athletic coping skills inventory-28 / Versão brasileira (acsi-28br) do athletic coping skills inventory-28 / Versión brasileña (acsi-28br) del athletic coping skills inventory-28

ABSTRACT Introduction: Coping is defined as a process based on motor, behavioral, and cognitive effort to deal with the psychophysical demands that exceed an individual's capacity. One of the instruments used most often for evaluating coping skills is the Athletic Coping Skills Inventory-28 (ACSI-28). Objective: This study aimed to validate the Brazilian version of the Athletic Coping Skills Inventory-28 (ACSI-28). The ACSI-28 is a multidimensional inventory developed to evaluate the different methods used by athletes to cope with sports pressure. Methods: The sample comprised 667 Brazilian athletes: male (n = 467; 70%); female (n = 200; 30%) with mean age 25 ± 5 years and eight (± 5) years of experience in individual sports (n = 182; 27.3%) or team sports (n = 485; 72.7%). Results: For construct validity, the relational structure of the items that comprise the original version of ACSI-28 was analyzed using EFA. The Kaiser-Meyer-Olkin measure (KMO = .83) and the Bartlett sphericity test (p <.0001) indicated adequate adjustment of the data to the factorial analyses. The reliability of the instrument was assessed by measuring internal consistency and by the stability of the measurement (test-retest). Conclusion: The Brazilian version of Athletic Coping Skills Inventory-28 was preliminarily considered valid. Level of Evidence III; Retrospective comparative study.

RESUMO Introdução: Coping é definido como um processo baseado no esforço motor, comportamental e cognitivo para lidar com as demandas psicofísicas que excedem a capacidade de um indivíduo. Um dos instrumentos mais utilizados para avaliar as habilidades de coping é o Athletic Coping Skills Inventory-28 (ACSI-28). Objetivo: Este estudo teve como objetivo validar a versão brasileira do Athletic Coping Skills Inventory-28 (ACSI-28). O ACSI-28 é um inventário multidimensional desenvolvido para avaliar os diferentes métodos utilizados pelos atletas para lidar com as pressões do esporte. Métodos: A amostra incluiu 667 atletas brasileiros: sexo masculino (n = 467; 70%); sexo feminino (n = 200; 30%) com média de idade de 25 ± 5 anos e oito anos (±5) de experiência em esportes individuais (n = 182; 27,3%) ou coletivos (n = 485; 72,7%). Resultados: Para a validade da construção, a estrutura relacional dos itens que compõem a versão original do ACSI-28 foi analisada usando o EFA. A medida Kaiser-Meyer-Olkin (KMO = 0,83) e o teste de esfericidade de Bartlett (p < 0,0001) indicaram ajuste adequado dos dados das análises fatoriais. A confiabilidade do instrumento foi avaliada medindo-se a consistência interna e pela estabilidade da medida (teste-reteste). Conclusões: A versão brasileira do Athletic Coping Skills Inventory-28 foi preliminarmente considerada válida. Nível de Evidência III; Estudo retrospectivo comparativo.

RESUMEN Introducción: Coping se define como un proceso basado en el esfuerzo motor, comportamental y cognitivo para hacer frente a las demandas psicofísicas que superan la capacidad de un individuo. Uno de los instrumentos más utilizados para evaluar las habilidades de coping es el Athletic Coping Skills Inventory-28 (ACSI-28). Objetivo: Este estudio tuvo como objetivo validar la versión brasileña del Athletic Coping Skills Inventory-28 (ACSI-28). El ACSI-28 es un inventario multidimensional desarrollado para evaluar los diferentes métodos utilizados por los atletas para lidiar con las presiones del deporte. Métodos: La muestra incluyó 667 atletas brasileños: sexo masculino (n = 467; 70%); sexo femenino (n = 200; 30%) con edad promedio de 25 ± 5 años y ocho (± 5) años de experiencia en deportes individuales (n = 182; 27,3%) o en equipo (n = 485; 72,7%). Resultados: Para la validez de la construcción, la estructura relacional de los elementos que componen la versión original del ACSI-28 fue analizada usando el EFA. La medida Kaiser-Meyer-Olkin (KMO = 0,83) y la prueba de esfericidad de Bartlett (p < 0,0001) indicaron un ajuste adecuado de los datos a los análisis factoriales. La confiabilidad del instrumento fue evaluada midiendo la consistencia interna y la estabilidad de la medida (prueba-reprueba). Conclusiones: La versión brasileña del Athletic Coping Skills Inventory-28 fue preliminarmente considerada válida. Nivel de Evidencia III; Estudio retrospectivo comparativo.

Analysis of scientific production related to sports psychology in sports science journals of portuguese language / Análise da produção científica relacionada à psicologia do esporte em periódicos das ciências do esporte de língua portuguesa

ABSTRACT The aim of this study was to analyze scientific production related to sport psychology (SP) in journals of sports science. The electronic search in 15 journals of physical education was performed in August 2016. Altogether, 145 articles were selected. The first publication occurred in 1997. It was observed an increase in publications from 2007. The journal that most published about SP was Journal of Physical Education of State University of Maringá with 24 publications. The institutions UEM, UFJF, UFMG, USP and UDESC showed at least 10 publications each. Paraná, São Paulo and Minas Gerais were states with most publications. It was observed that most studies had cross-sectional design. At total, 49 sports were investigated, volleyball was the most studied, followed by Soccer and Basketball. Motivation was the theme of most of studies, especially in Soccer, as well as stress, anxiety and mood states. We concluded that there was an increase in scientific production about SP in the last decade. Themes applied to sport as mental training, techniques of activation and relaxation requires investigation.

RESUMO O objetivo do presente estudo foi analisar a produção científica relacionada à psicologia do esporte (PE) em periódicos das Ciências do Esporte. Realizou-se uma revisão sistemática que seguiu os critérios recomendados pela Declaração PRISMA em agosto de 2016 em 15 periódicos relacionados as Ciências do Esporte. Cento e quarenta e cinco estudos foram selecionados. O primeiro estudo encontrado sobre o tema foi publicado em 1997, sendo que houve aumento na produção de artigos a partir de 2007. O periódico que mais publicou sobre PE foi a Revista da Educação Física, da Universidade Estadual de Maringá com 24 publicações. As instituições que se destacaram em relação ao número de publicações foram: UEM, UFJF, UFMG, USP e UDESC, com mais de 10 estudos publicados cada. Os estados com maior número de publicações foram Paraná, São Paulo e Minas Gerais. No total 49 modalidades esportivas foram investigadas, sendo o Voleibol mais investigado, seguido pelo Futebol e Basquetebol. A motivação foi a variável psicológica mais investigada, além do estresse, ansiedade e estados de humor. Conclui-se que houve um aumento na produção de estudos sobre PE na última década. Temas aplicados ao esporte como treinamento mental, técnicas de ativação e relaxamento necessitam mais investigações.

Perfil sociodemográfico, socioeconômico e esportivo de tenistas infantojuvenis brasileiros de elite / Socioeconomic, socio-demographic and sports profiles of brazilian elite junior tennis players / perfil sociodemográfico, socioeconómico y deportivo de tenistas infantojuveniles brasileños de élite

O estudo objetivou descrever o perfil sociodemográfico, socioeconômico e esportivo de tenistas infantojuvenis brasileiros competitivos de elite. Participaram 130 tenistas, sendo 102 homens e 28 mulheres. A maioria dos tenistas é natural das Regiões Sudeste e Sul e houve um predomínio de tenistas treinando nessas regiões. A maioria dos tenistas pertence à classe socioeconômica A. Em média, os tenistas iniciaram no tênis aos oito anos e o início em competições de tênis foi aos 11 anos. Os tempos médios de prática e de prática competitiva dos tenistas foram de sete e quatro anos, respectivamente. Já foram finalistas em competição internacional 16% dos atletas e aproximadamente a metade já disputou finais em competições internacionais e nacionais. Concluiu-se que os tenistas investigados são oriundos das classes econômicas mais altas. Além disso, os tenistas apresentaram grande volume de treino e tempo de prática

The study aimed to describe the sociodemographic, socioeconomic, and sports profiles of Brazilian competitive elite junior tennis players. A total of 130 athletes participated, being 102 males and 28 females. Most of them come from Brazil's Southeast and South and train in those regions. Most belong to the "A" socioeconomic class. On average, they began practicing tennis at the age of eight and started competing at the age of 11. Their average practice and competition times were seven and four years respectively. Some (16%) have been finalists in international competitions and nearly half have already played finals in national and international competitions. Those players were found to come from Brazil's highest economic classes. Moreover, they showed large amount of training and practice time

El estudio describe el perfil sociodemográfico, socioeconómico y deportivo de tenistas infantojuveniles de élite brasileños. Participaron 130 tenistas, siendo 102 hombres y 28 mujeres. La mayoría de los tenistas es natural de las regiones Sudeste y Sur y entrenan en esas regiones. La mayoría pertenece a la clase socioeconómica A. En promedio, comenzaron a practicar tenis a los ocho años y comenzaron a participar en competiciones a los 11 años. Los tiempos de práctica y de práctica competitiva fueron de siete y cuatro años en promedio, respectivamente. Han sido finalistas en competiciones internacionales 16% de los atletas y alrededor de la mitad ha disputado finales en competiciones nacionales e internacionales. Se concluye que los tenistas investigados son oriundos de las clases económicas más altas. Además, presentaron gran volumen de entrenamiento y tiempo de práctica

Is the internal training load different between starters and nonstarters volleyball playerssubmitted to the same external load training? A case study / A carga interna de treinamento é diferente entre atletas de voleibol titulares e reservas? Um estudo de caso

Abstract The same training stimulus can provide different physiological adaptations for athletes of the same team. Thus, the aim of this study was to analyze and compare the load training of starters and nonstarters players, athletes of a men's volleyball team at different times of the season. The sample consisted of fifteen men's volleyball superleague athletes who were divided into two groups of starters and nonstarters players. The training load of the ten weeks of the team's preparation period for the main championship season in which no games were performed was selected for the study. The method of subjective perceived of effort (session-RPE) proposed by Foster et al. (2001) was used to quantify the training load. The group of starters players had higher total weekly training load (TWTL) and RPE values in the average of the ten weeks of training (p<0.05). Higher TWTL values for starters players in the preparatory and pre-competitive period compared to nonstarters players was also demonstrated (p<0.05). When different weeks were analyzed separately, weeks three and seven presented higher TWTL and RPE values for starters players compared with nonstarters players (p<0.05). The results presented in this study showed that starters players showed greater internal training load compared to nonstarters players.

Resumo O mesmo estímulo de treinamento pode proporcionar diferentes adaptações fisiológicas para os atletas de uma mesma equipe. Dessa forma, o objetivo do estudo foi analisar e comparar as cargas de treinamento de atletas titulares e reservas de uma equipe de voleibol masculino em diferentes períodos da temporada. A amostra foi composta por quinze atletas da superliga masculina de vôlei que foram divididos em dois grupos de titulares e reservas. A carga de treinamento de dez semanas pertencentes ao período de preparação da equipe para o campeonato principal da temporada em que não houve a realização de jogos foi selecionada para o estudo. Foi utilizado para a quantificação da carga de treinamento o método da percepção subjetiva do esforço da sessão (PSE) proposto por Foster et al. (2001). O Grupo titular apresentou maiores valores de carga de treinamento semanal total (CTST) e de PSE na média das 10 semanas de treinamento (p<0,05). Foi demonstrado também maior valor de CTST para os titulares no período preparatório e competitivo em relação aos reservas (p<0,05). Quando as diferentes semanas foram analisadas separadamente, a semana 3 e 7 apresentaram a CTST e a PSE maiores para os titulares comparado com os reservas (p<0,05). Os resultados apresentados pelo presente estudo mostraram que atletas considerados titulares apresentaram maior carga interna de treinamento em comparação aos atletas considerados reservas.