scholarly journals Anthropometric and capacitive analysis of the Ecuadorian senior national women's soccer team (Análisis antropométrico y capacitivo del equipo nacional femenino de fútbol de mayores de Ecuador)

Retos ◽  
2021 ◽  
Vol 44 ◽  
pp. 716-727
Author(s):  
Richard Manuel Manangón Pesantez ◽  
Lisbet Guillen Pereira ◽  
Daniela Alexandra Guevara Sánchez ◽  
Pablo Pablo Rendon Morales ◽  
Yaxel Ale De la Rosa Fuente ◽  
...  
Keyword(s):  
Normal Distribution ◽  
Muscle Mass ◽  
International Society ◽  
Lower Extremities ◽  
Soccer Players ◽  
National Team ◽  
Explosive Force ◽  
Morphological Diagnosis ◽  
Soccer Team ◽  
High Level

  The development of women's football worldwide points to the resignification of the approach to team preparation, where anthropometric and capacitive variables play an important role. Ecuador shows no precedent for studies in high-level female soccer players. Accordingly, the objective focused on analyzing the state of anthropometric and capacitive variables of 22 soccer players of the Ecuadorian senior women's national team, which represent 100% of the population. It started from the morphological diagnosis of equipment applying 19 measurements under the protocol of marking and measurement of the International Society for the development of Kineanthropometry (ISAK), the evaluation of the explosive force through three jumps (Tests SJ, CMJ and Abalakob ( AB) and speed (35 meters), The data were subjected to normality criteria (Shapiro-Wilk test), the result of which indicated that the values ​​did not follow a normal distribution, therefore the non-parametric ANOVA test of a Kruskal - Wallis Factor for independent samples. The study was preceded by three research hypotheses. It is shown that there are no significant differences in the variables analyzed by position, being p> 0.05, H0 is accepted in all cases. The results allowed to characterize the team morphologically with a Meso-Endomorph somatotype, irregularities were found in some variables of the morphology of the soccer players (IDG / IMO), suggesting how conclusion a nutritional dietary planning, and enhance muscle mass in the lower extremities from the management of physical direction.  Resumen. El desarrollo del fútbol femenino a nivel mundial, apunta hacia la resignificación del enfoque de la preparación de los equipos, donde juega un rol importante las variables antropométricas y capacitivas. Ecuador no muestra precedentes de estudios en mujeres futbolistas de alto nivel. En concordancia el objetivo se centró en analizar el estado de variables antropométricas y capacitivas de 22 futbolistas del equipo nacional femenino de mayores de Ecuador, las cuales representan el 100% de la población. Se partió del diagnóstico morfológico de equipo aplicando 19 mediciones bajo el protocolo de marcaje y medición de la Sociedad Internacional para el desarrollo de la Cineantropometría (ISAK), la evaluación de la fuerza explosiva a través de tres saltos (Tests SJ, CMJ y Abalakob (AB) y la rapidez (35 metros), Los datos se sometieron a criterios de normalidad (test de Shapiro-Wilk), cuyo resultado indicó que los valores no siguen una distribución normal, en virtud de ello se empleó la prueba no paramétrica ANOVA de un Factor de Kruskal - Wallis para muestras independiente. El estudio estuvo precedido por tres hipótesis de investigación. Se demuestra que no existen diferencias significativas en las variables analizadas por posición; al ser p>0,05 se acepta H0 en todos los casos. Los resultados permitieron caracterizar morfológicamente al equipo con un somatotipo Meso-Endomorfo, se comprueba irregularidades en algunas variables de la morfología de las futbolistas (IDG/ IMO) sugiriendo como conclusión una planificación dietético nutricional, y potenciar la masa muscular en las extremidades inferiores desde la gestión de la dirección física.

scholarly journals High Level of Sit-and-Reach Flexibility Enhances Neuromuscular Explosiveness Performance in Young Elite Soccer Players

Proceedings ◽  
2019 ◽  
Vol 25 (1) ◽  
pp. 27
Author(s):  
Andria Kirkini ◽  
Marios Christou ◽  
Andreas Apostolidis ◽  
Eleni Toumpi ◽  
Marios Hadjicharalambous
Keyword(s):  
Soccer Players ◽  
Muscle Injuries ◽  
Arm Swing ◽  
Team Members ◽  
National Team ◽  
Lower Back ◽  
Fitness Parameters ◽  
Hamstring Flexibility ◽  
High Flexibility ◽  
High Level

Aim: Increased hamstring and lower back flexibility may contribute to preventing muscle injuries. However, inconsistencies exist on whether dynamic or static stretching exercises should be routinely used prior to and after training sessions/games to improve performance and ameliorate muscle soreness. No studies so far evaluated whether “poor” or “good” levels of flexibility may influence fitness parameters in elite young soccer players. The purpose, therefore, of the present study was to examine the effect of lower back and hamstring flexibility on several fitness parameters in elite young soccer players. Material & Method: One hundred three young elite soccer players (U15, U17, U19 National team members) were initially evaluated, but only 81 met the cut-off criteria and were included in the statistical analysis. These 81 players were separated into two groups based on their sit-and-reach flexibility score. The players whose score was less than 22 cm were included in the low-flexibility (L-Flex) group (n = 52), and those whose reach score was above 28 cm were included in the high-flexibility (H-Flex) group (n = 29). A comparison of several fitness parameters between groups was performed using unpaired t test. Results: Sit-and-reach flexibility was significantly higher (p < 0.001) in H-Flex (31.5 ± 3 cm) compared with the L-Flex group (18 ± 5 cm). No differences between groups were observed in age, height, body weight, % body fat, maximum speeds (5–30 m), isokinetic parameters, maximum aerobic speed and VO2max (p > 0.05). Countermovement jump (CMJ, p = 0.023) and CMJ with arm-swing (p = 0.005) were significantly better in the H-Flex compared with the L-Flex group. No correlation was observed between mean flexibility score and any other evaluated fitness parameters (p > 0.05). Conclusions: High level of sit-and-reach flexibility may contribute to enhancing neuromuscular explosiveness performance in young elite soccer players. However, the exact mechanism responsible for these results still need to be determined.

scholarly journals Variação e mudança em nomes de jogadores da Seleção Brasileira

2020 ◽  
Vol 2 (3) ◽  
pp. 101-118
Author(s):  
Vinícius Pereira de Souza Cruz ◽  
Eduardo Tadeu Roque Amaral
Keyword(s):  
Theoretical Framework ◽  
Soccer Players ◽  
World Cup ◽  
Change Over Time ◽  
National Team ◽  
The World ◽  
Soccer Team ◽  
Over Time

Este artigo apresenta uma análise de antropônimos oficiais e não oficiais de jogadores da Seleção Brasileira do período compreendido entre 1958 e 2018. O marco teórico se apoia tanto em estudos de Onomástica, como Amaral (2011), Amaral e Seide (2020), Bajo Pérez (2002), Becker (2018), Fernández Leborans (1999), Urrutia e Sánchez (2009), Van Langendonck (2007), quanto em estudos sobre o futebol brasileiro, como Rodrigues (2010) e Caetano e Rodrigues (2009). Os dados analisados são os nomes das listas de jogadores convocados nesse período para os jogos mundiais. Esses nomes são classificados com o objetivo de observar a variação e a mudança ao longo do tempo. Os resultados indicam um predomínio de nomes oficiais em quase todos os anos, bem como uma maior tendência contemporânea às variantes mais formais dos nomes.Palavras-chave: Seleção Brasileira; jogadores de futebol; antropônimos.Variation and changes in soccer players’ names of Brazilian National soccer teamAbstract: This paper presents an analysis of official and unofficial anthroponyms of soccer players from the Brazilian National team from 1958 to 2018. The theoretical framework is based on onomastic studies, such as Amaral (2011), Amaral e Seide (2020), Bajo Pérez (2002), Becker (2012), Fernández Leborans (1999), Urrutia and Sánchez (2009), Van Langendonck (2007), Fernández Leborans (1999) as well as on analyzes about the Brazilian soccer such as Rodrigues (2010) and Caetano and Rodrigues (2009). The data analyzed are the names from the lists of players selected in that period to compete in the World Cup. These names are classified in order to observe the variation and the change over time. The results indicate a predominance of official names in almost every year, as well as a greater contemporary trend towards more formal variants of names. Keywords: Brazilian National soccer team; soccer players; anthroponyms.

scholarly journals Factors Influencing Creatine Kinase Response in Youth National Team Soccer Players

2021 ◽  
pp. 194173812199938
Author(s):  
Gabor Schuth ◽  
Gyorgy Szigeti ◽  
Gergely Dobreff ◽  
Peter Revisnyei ◽  
Alija Pasic ◽  
...  
Keyword(s):  
Creatine Kinase ◽  
Prediction Models ◽  
Soccer Players ◽  
Linear Regression Models ◽  
Level Of Evidence ◽  
Internal Load ◽  
Youth Soccer ◽  
National Team ◽  
Weekly Training ◽  
The Relationship

Background: Previous studies have examined the relationship between external training load and creatine kinase (CK) response after soccer matches in adults. This study aimed to build training- and match-specific CK prediction models for elite youth national team soccer players. Hypothesis: Training and match load will have different effects on the CK response of elite youth soccer players, and there will be position-specific differences in the most influential external and internal load parameters on the CK response. Study Design: Prospective cohort study. Level of Evidence: Level 4. Methods: Forty-one U16-U17 youth national team soccer players were measured over an 18-month period. Training and match load were monitored with global positioning system devices. Individual CK values were measured from whole blood every morning in training camps. The dataset consisted of 1563 data points. Clustered prediction models were used to examine the relationship between external/internal load and consecutive CK changes. Clusters were built based on the playing position and activity type. The performance of the linear regression models was described by the R2 and the root-mean-square error (RMSE, U/L for CK values). Results: The prediction models fitted similarly during games and training sessions ( R2 = 0.38-0.88 vs 0.6-0.77), but there were large differences based on playing positions. In contrast, the accuracy of the models was better during training sessions (RMSE = 81-135 vs 79-209 U/L). Position-specific differences were also found in the external and internal load parameters, which best explained the CK changes. Conclusion: The relationship between external/internal load parameters and CK changes are position specific and might depend on the type of session (training or match). Morning CK values also contributed to the next day’s CK values. Clinical Relevance: The relationship between position-specific external/internal load and CK changes can be used to individualize postmatch recovery strategies and weekly training periodization with a view to optimize match performance.

scholarly journals Analyzing the Magnitude of Interlimb Asymmetries in Young Female Soccer Players: A Preliminary Study

2021 ◽  
Vol 18 (2) ◽  
pp. 475
Author(s):  
Javier Raya-González ◽  
Filipe Manuel Clemente ◽  
Daniel Castillo
Keyword(s):  
Range Of Motion ◽  
Muscle Mass ◽  
Injury Risk ◽  
Young Female ◽  
Asymmetry Index ◽  
Lower Limbs ◽  
Soccer Players ◽  
Countermovement Jump ◽  
Change Of Direction ◽  
Jump Ability

Although asymmetries in lower limbs have been linked with players’ performance in male soccer players, literature that has been published addressing female soccer is scarce. Thus, the aim of this study was twofold: (i) describe the asymmetries of women soccer players during jumping, change-of-direction and range-of-motion tests; and (ii) test possible relationships between asymmetries and injury risk in female soccer players. Sixteen female players (15.5 ± 1.5 years) performed a battery of fitness tests (i.e., jump ability, change-of-direction ability and passive range-of-motion) and muscle mass analysis via dual-energy X-ray absorptiometry, through which the specific asymmetry index and the related injury risk were calculated. Significant (p < 0.05) lower asymmetries in the change-of-direction test were observed in comparison to those observed in jumping and range-of-motion tests; significant (p < 0.05) lower asymmetries in muscle mass were also reported compared to those found in the change-of-direction and countermovement jump tests. Additionally, increased injury risk for countermovement jump and hip flexion with extended knee range-of-motion (relating to asymmetry values) and for ankle flexion with flexed knee range-of-motion in both legs (relating to reference range-of-motion values), as well as increased individual injury risk values, were observed across all tests. These findings suggest the necessity to implement individual approaches for asymmetry and injury risk analyses.

scholarly journals Internal and External Training Load in Under-19 versus Professional Soccer Players during the In-Season Period

2021 ◽  
Vol 18 (2) ◽  
pp. 558
Author(s):  
Sullivan Coppalle ◽  
Guillaume Ravé ◽  
Jason Moran ◽  
Iyed Salhi ◽  
Abderraouf Ben Abderrahman ◽  
...  
Keyword(s):  
Perceived Exertion ◽  
Training Session ◽  
Training Load ◽  
Rating Of Perceived Exertion ◽  
Soccer Players ◽  
Time Intervals ◽  
Professional Soccer ◽  
Global Positioning ◽  
External Training ◽  
Soccer Team

This study aimed to compare the training load of a professional under-19 soccer team (U-19) to that of an elite adult team (EAT), from the same club, during the in-season period. Thirty-nine healthy soccer players were involved (EAT [n = 20]; U-19 [n = 19]) in the study which spanned four weeks. Training load (TL) was monitored as external TL, using a global positioning system (GPS), and internal TL, using a rating of perceived exertion (RPE). TL data were recorded after each training session. During soccer matches, players’ RPEs were recorded. The internal TL was quantified daily by means of the session rating of perceived exertion (session-RPE) using Borg’s 0–10 scale. For GPS data, the selected running speed intensities (over 0.5 s time intervals) were 12–15.9 km/h; 16–19.9 km/h; 20–24.9 km/h; >25 km/h (sprint). Distances covered between 16 and 19.9 km/h, > 20 km/h and >25 km/h were significantly higher in U-19 compared to EAT over the course of the study (p =0.023, d = 0.243, small; p = 0.016, d = 0.298, small; and p = 0.001, d = 0.564, small, respectively). EAT players performed significantly fewer sprints per week compared to U-19 players (p = 0.002, d = 0.526, small). RPE was significantly higher in U-19 compared to EAT (p =0.001, d = 0.188, trivial). The external and internal measures of TL were significantly higher in the U-19 group compared to the EAT soccer players. In conclusion, the results obtained show that the training load is greater in U19 compared to EAT.

scholarly journals Dietary and Ergogenic Supplementation to Improve Elite Soccer Players’ Performance

2021 ◽  
pp. 1-7
Author(s):  
Haniel Fernandes
Keyword(s):  
Dietary Supplements ◽  
High Performance ◽  
Scientific Literature ◽  
Soccer Players ◽  
Competitive Sport ◽  
Beetroot Juice ◽  
Improve Performance ◽  
Sustained Release Tablets ◽  
High Level ◽  
Ergogenic Supplements

<b><i>Background:</i></b> Soccer is an extremely competitive sport, where the most match important moments can be defined in detail. Use of ergogenic supplements can be crucial to improve the performance of a high-performance athlete. Therefore, knowing which ergogenic supplements are important for soccer players can be an interesting strategy to maintain high level in this sport until final and decisive moments of the match. In addition, other supplements, such as dietary supplements, have been studied and increasingly referenced in the scientific literature. But, what if ergogenic supplements were combined with dietary supplements? This review brings some recommendations to improve performance of soccer athletes on the field through dietary and/or ergogenic supplements that can be used simultaneously. <b><i>Summary:</i></b> Soccer is a competitive sport, where the match important moments can be defined in detail. Thus, use of ergogenic supplements covered in this review can improve performance of elite soccer players maintaining high level in the match until final moments, such as creatine 3–5 g day<sup>−1</sup>, caffeine 3–6 mg kg<sup>−1</sup> BW around 60 min before the match, sodium bicarbonate 0.1–0.4 g kg<sup>−1</sup> BW starting from 30 to 180 min before the match, β-alanine 3.2 and 6.4 g day<sup>−1</sup> provided in the sustained-release tablets divided into 4 times a day, and nitrate-rich beetroot juice 60 g in 200 mL of water (6 mmol of NO3<sup>−</sup> L) around 120 min before match or training, including a combination possible with taurine 50 mg kg<sup>−1</sup> BW day<sup>−1</sup>, citrulline 1.2–3.4 g day<sup>−1</sup>, and arginine 1.2–6 g day<sup>−1</sup>. <b><i>Key Messages:</i></b> Soccer athletes can combine ergogenic and dietary supplements to improve their performance on the field. The ergogenic and dietary supplements used in a scientifically recommended dose did not demonstrate relevant side effects. The use of various evidence-based supplements can add up to further improvement in the performance of the elite soccer players.

scholarly journals Skeletal muscle index and its association with mobility among community‐dwelling older women

2021 ◽  
Vol 13 (1) ◽  
pp. 37-44
Author(s):  
ZBIGNIEW M. OSSOWSKI
Keyword(s):  
Skeletal Muscle ◽  
Older People ◽  
Older Women ◽  
Muscle Mass ◽  
Skeletal Muscle Mass ◽  
Lower Extremities ◽  
Community Dwelling ◽  
Functional Mobility ◽  
Skeletal Muscle Index ◽  
Chair Stand

Background: The loss of muscle function and reduced mobility levels are the main reasons for the limitations of independence and disability in older people. The main aim of this study was to determine the relationship between the skeletal muscle index and mobility in older women. Material and methods: ‪The study involved 166 older women. Skeletal muscle mass and other body components were determined by bioimpedance using an InBody 720 device. Functional mobility was evaluated with the timed up-and-go test. 30-second chair stand was also used to measure the level of functional strength in lower extremities. Results: ‪The skeletal muscle index was positively correlated with functional mobility (r=-0.22; p=0.00) and 30-second chair stand (r=-0.47; p=0.00). However, the strength of lower extremities was a significantly better parameter in predicting mobility in older women than the skeletal muscle index and skeletal muscle mass. Conclusions: The functional strength of lower extremity muscles and the skeletal muscle index can have a positive effect on functional mobility in older people. The results may be helpful in clinical practice when diagnosing mobility limitations and in the process of programming physical activity of older women aimed at the prevention of sarcopenia.

scholarly journals Performance of the national fencing team of Ukraine at the XXXII Olympic Games and the prospects of its performance at the next Olympic Games

2021 ◽  
pp. 84-87
Author(s):  
Olga Kuvaldina ◽  
Volodymyr Driukov
Keyword(s):  
Olympic Games ◽  
Crucial Importance ◽  
Team Members ◽  
National Team ◽  
Sports Events ◽  
The World ◽  
High Level ◽  
Sports Statistics ◽  
Stimulation Of ◽  
The Olympic Games

Analysis of Ukrainian athletes’ results at the XXXII Olympiad Games allows pointing out the factors of the weak performance of Ukrainian athletes in women's individual saber and epee competitions, as well as men's team epee competitions, despite the possibility of winning medals in these sports events according to many analysts including those of Infostrada Sports and other sports statistics experts. These, in our opinion, include an unsatisfactory level of efficiency of the process of reaching the peak of readiness for the Olympic Games; lack of psychological stability of athletes at the competitions; weak tactical preparation of some athletes. Based on the performances of athletes of the Ukrainian fencing team in Tokyo, a conclusion was made about the unsatisfactory level of athletes’ preparation for the XXXII Olympic Games. Only 20% of the national team members were able to realize their potential at the XXXII Olympic Games. The dynamics of the athletes’ results at the World Championships 2017 – 2019 indicates the need to use in the new Olympic cycle the planning, which is focused on our athletes reaching the peak of readiness for the Olympics: at first, the training should be aimed at the maximum stimulation of the growth of sportsmanship, whereas at the final stage it should be focused on its realization in the major competitions. It is shown that despite the unsuccessful performance of the Ukrainian fencing team in the Olympic Tokyo, this type of martial arts has significant potential for improving sports achievements at the XXXIII Olympic Games 2024 in Paris. It is noted that in the new Olympic cycle it is of crucial importance to identify candidates for the XXXIII Olympic Games as soon as possible and to create all the conditions for their full-fledged preparation. Thus, to ensure further winning medal places at the Olympic Games, it is necessary to improve the system of sports training in the Olympic cycle, which envisages participation in numerous competitions during the year to achieve a high level of readiness in the major competitions of triennial – the Olympic Games.

scholarly journals Body satisfaction and use anabolic steroids perceptions of adolescents

2020 ◽  
pp. 1-5
Author(s):  
Ubirajara de Oliveira ◽  
Danilo Sales Bocalini ◽  
José Martins Filho
Keyword(s):  
Body Image ◽  
Muscle Mass ◽  
Health Risks ◽  
Social Group ◽  
Body Satisfaction ◽  
Anabolic Steroids ◽  
Male Adolescents ◽  
Level Of Satisfaction ◽  
High Level ◽  
Image Variables

Background: It is known that adolescence is a phase of transformation subject to innumerable influences. Objective: The objective of this study was to identify the level of body satisfaction among male adolescents practicing bodybuilding and perception and value attributed to the use of anabolic steroids (AS). Methods: The sample consisted of 3150 male adolescents aged 15 to 21 years. The adolescents were submitted to a questionnaire with 41 questions containing several elements detected such as: the level of body satisfaction, the bodybuilding practice proposing body changes and the possible use of AS. Results: The main results were attributed to the high level of satisfaction for body image variables from the members of their social group in 1883 (60%, X2 = 26.361; p<0.005), body mass 1552 (50%; X2 = 55.374; p<0.005) and muscle mass 1199 (39%, X2 = 10.405; p <0.005). Additionally, 1243 (39%; X2 = 31.926; p <0.005) adolescents confirm the possibility of use; the preference for faster means to achieve changes in their bodies, even knowing about health risks was 1347 (43%; X2 = 31.926; p<0.005). On the knowledge of the effects to the point of refusing their involvement related to the use of AS with aesthetic objectives 1152 (36%; X2 = 45.758; p<0.005) students affirm that they did not know, however, they would still use it, with statistically significant observed differences. Conclusion: Although it is possible to consider a high level of satisfaction for the variables associated with body image, adolescents consider the use of AS to achieve changes in their bodies by faster means, despite knowing about health risks even without knowledge of the effects related to the use of AS for aesthetic purposes.

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