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Item Relationship between Anthropometric Measures and Anxiety Perception in Soccer Players(2022-07-22) Martínez-Rodríguez, Alejandro; Peñaranda-Moraga, Marcelo; Vicente-Martínez, Manuel; Martínez-Moreno, Miguel; Cuestas-Calero, Bernardo J.; Soler-Durá, Jorge; Yáñez-Sepúlveda, Rodrigo; Muñoz-Villena, Antonio JesúsIn the sports context, it has been corroborated that the physical demands of presenting an “ideal” body configuration have been associated with different psychological variables, such as self-esteem, anxiety and personality dimensions, such as perfectionism. Specifically, there is evidence that anthropometric measures may be closely related to psychological indicators. A total of 33 male soccer players (18.12 ± 1.24 years) participated in the investigation. Anthropometric assessments were carried out following the ISAK standards for the restricted profile. All of them completed the Competitive Trait Anxiety Inventory (CTAI-2D) in its Spanish version. The percent fat was calculated using Withers (density) and Siri equations. The ∑7 skinfolds were used to calculate this. After statistical analysis, significant mean differences were observed in the somatic anxiety dimension (valence) and a medium–large effect size. Regarding correlations, the significantly negative relationship between self-confidence (intentionality) and somatic anxiety (valence) was noteworthy. The relationship between psychological variables and anthropometric measurements was corroborated, showing the need for interdisciplinary work between psychologists and nutritionists who do not ignore the physical health and psychological well-being of the soccer player.Item Ramadan Nutritional Strategy: Professional Soccer Player Case Study(2022-01-21) Martínez-Rodríguez, Alejandro; Miralles-Amorós, Laura; Vicente-Martínez, Manuel; Asencio-Mas, Nuria; Yáñez-Sepúlveda, Rodrigo; Martínez-Olcina, MaríaThe period of Ramadan induces changes in the usual eating patterns of individuals. During this period, Muslims must abstain from drinking and eating from dawn to dusk. Therefore, some research conducted on professional soccer players has observed that during and/or after Ramadan, performance, running speed, agility, dribbling speed, and endurance and/or skill performance in athletic events may be negatively affected by Ramadan intermittent fasting (RIF). The objective of this study was to analyze the influence of a dietary plan during RIF on performance and body composition in a professional soccer player. A 20-year-old elite player (86.0 kg, 188.5 cm) followed a dietarynutritional plan with an isocaloric diet and was supplemented with glycerol. The athlete’s strength and power in the lower limbs was assessed by performing a countermovement jump (CMJ) and Abalakov vertical jump (ABK) before and after Ramadan. After nutritional planning, the patient’s body composition improved in terms of fat loss (6.61 to 5.70%) and muscle mass gain (50.26 to 51.50%). In addition, this translated into improvements in performance tests, both in the CMJ (36.72 to 40.00 cm) and ABK (39.16 to 49.34 cm). In conclusion, during a period of fasting, personalised nutritional planning and an appropriate supplementation and rest protocol can improve the body composition and performance of soccer players.Item Professional Esports Players are not Obese: Analysis of Body Composition Based on Years of Experience(2021) Giakoni-Ramírez, Frano; Duclos-Bastías, Daniel; Yáñez-Sepúlveda, RodrigoEsports are considered a form of electronic sports that have become an important element of popular culture. Its evolution and continuous development have led to consider esports as a profession, increasing the number of players, practice modalities and hours of play dedicated to this field. Therefore, scientific and economic contributions have increased in recent years, however, there is little research on body composition in this group of players. To describe the anthropometric characteristics and body composition in professional esports players according to the years of experience. The sample consisted of 53 esports players competing in the Spanish professional league, with a mean age of 21.01 ± 0.39 years, whose body composition was measured by electrical bioimpedance with the TANITA® BC-601F Segment device. No differences were found between groups nor significant associations according to linear regression (p<0.05) between body composition variables and years of experience as a professional player. The years of practice, as well as the esports practiced have no influence on the body composition of professional esports players.Item Psychological, Physiological, and Physical Effects of Resistance Training and Personalized Diet in Celiac Women(2022-06-16) Martínez-Rodríguez, Alejandro; Loaiza-Martínez, Daniela Alejandra; Sánchez-Sánchez, Javier; Rubio-Arias, Jacobo Á.; Alacid, Fernando; Prats-Moya, Soledad; Martínez-Olcina, María; Yáñez-Sepúlveda, Rodrigo; Asencio-Mas, Nuria; Marcos-Pardo, Pablo J.Background: Gluten intolerance is a systemic process of autoimmune nature; it develops in genetically predisposed subjects with gluten ingestion. The only treatment for celiac disease (CD) is a lifelong strict gluten-free diet (GFD). This study was designed to evaluate adherence to a GFD, risk of an eating disorder, and nutritional status in adult CD patients undergoing different interventions. Methods: A total of 28 Spanish women, aged 40 years or more, took part in a randomized controlled trial. Each group received a different intervention: group 1, gluten-free nutrition plan + exercise (GFD + E); group 2, gluten-free nutrition plan (GFD); group 3, celiac controls (NO-GFD); and group 4, non-celiac controls (CONTROL). The training was prescribed by a sport scientist. It was based on resistance training with elastic bands; beforehand a warm-up was performed and the resistance was increased progressively. The variables studied were adherence to the GFD, risk of eating disorders, blood values, and body composition. Results: Celiac women with personalized nutritional planning presented greater adherence to a gluten-free diet (p < 0.001). Regarding leukocytes, significant differences were observed between the GFD and control groups (p = 0.004). Perimeters and folds did not decrease significantly. Conclusion: Women with celiac disease who follow an adapted and personalized diet have a better adherence to a GFD compared to those who follow a non-professional diet, and therefore have a better immune system status (blood leukocytes).Item Proposal of a Normative Table for Classification of Body Fat Percentage in Brazilian Jiu-Jitsu Athletes(2022) de Souza Cerqueira, Beatriz; Baú Cerqueira, Mateus; Costa Ferreira, Willian; Mendes de Oliveira, Fabiano; Vidal Andreato, Leonardo; dos Santos-Junior, Rubens Batista; Valdés-Badilla, Pablo; Magnani Branco, Braulio HenriquePrevious evidence indicates that body fat can distinguish Brazilian jiu-jitsu (BJJ) athletes according to the competitive level. However, propositions of cut-off points for establishing classifications of body fat percentage for combat sports athletes and, specifically, for BJJ athletes are still incipient in the literature. In this sense, the main aim of the present study was to establish a normative table for the classification of body fat percentage in BJJ athletes. As a secondary aim, athletes were compared according to competitive level. Ninety male BJJ athletes (aged: 29.0 ± 8.2 years; practice time: 6.0 ± 2.1 years; body mass: 82.1 ± 12.7 kg; height: 175.9 ± 6.5 cm; fat mass: 16.0 ± 8.9 kg; bone mineral content: 3.7 ± 0.6 kg; muscle mass: 37.9 ± 5.4 kg; body fat percentage: 17.3 ± 6.8 %; basal metabolic rate: 1811.4 ± 193.4 kcal) from different competitive levels: state (n= 42), national (n= 26) and international (n= 22) took part in this study. All athletes had their body composition measured via tetrapolar bioelectrical impedance. Percentiles p10, p25, p50, p75, and p90 were used to establish the classification. As a result, the following classification was obtained: <7.7 % (very low); ≥7.7-11.5 % (low); 11.6-17.0 % (medium); 17.1-24.0 % (high) and ≥24.1 % (very high). State-level athletes had a higher fat percentage than national and international-level athletes (p<0.05). The proposed cut-off points can help professionals responsible for sports training and nutritional prescription in monitoring the body fat of BJJ athletes.Item Effects of 4 Weeks of a Technique-Specific Protocol with High-Intensity Intervals on General and Specific Physical Fitness in Taekwondo Athletes: An Inter-Individual Analysis(2021) Ojeda Aravena, Alex; Herrera Valenzuela, Tomás; Valdés Badilla, Pablo; Cancino López, Jorge; Zapata Bastias, José; García García, José ManuelThe aim of this research was to compare the effects of a technique-specific high-intensity interval training (HIIT) protocol vs. traditional taekwondo training on physical fitness and body composition in taekwondo athletes, as well as to analyse the inter-individual response. Utilising a parallel controlled design, sixteen male and female athletes (five females and 11 males) were randomly divided into an experimental group (EG) that participated in the technique-specific HIIT and a control group (CG) that participated in traditional taekwondo training. Both groups trained three days/week for four weeks. Squat jump (SJ), countermovement jump (CMJ), 5-metre sprint (5M), 20-metre shuttle run (20MSR), taekwondo specific agility test (TSAT), multiple frequency speed of kick test (FSKTMULT), total kicks, and kick decrement index (KDI), as well as body composition were evaluated. Results indicate that there are no significant differences (p > 0.05) in the factors group and time factor and group by time interaction (p > 0.05). Although percentage and effect size increases were documented for post-intervention fitness components in TSAT, total kicks, KDI, and 20MSR, responders and non-responders were also documented. In conclusion, a HIIT protocol based on taekwondo-specific technical movements does not report significant differences in fitness and body composition compared to traditional taekwondo training, nor inter-individual differences between athletes.Item Quantitative Diet, Body Composition and Sprint Performance in Female Professional Beach Handball Players(2022-12-28) Martínez-Rodríguez, Alejandro; Sánchez-Sánchez, Javier; Martínez-Olcina, María; Vicente-Martínez, Manuel; Peñaranda-Moraga, Marcelo; Asencio-Mas, Nuria; Gonzálvez-Alvarado, Lucía; Matlosz, Piotr; Yáñez-Sepúlveda, Rodrigo; Cortés-Roco, Guillermo; Sánchez-Sáez, Juan AntonioWomen's elite sports have experienced an exponential increase in the last decade, as has beach handball (BH). The high demands of this sport mean that athletes need to be in superior physical condition, so nutrition and body composition are determining factors in their sporting performance. For this reason, the aim of this study was to analyze, compare and correlate the most relevant variables of food intake (quantitative), body composition (focus on the bone mass characteristics) and sprint performance in female professional BH players. Thirty-three women from the National Spanish Team participated in this study. Dietary assessment, anthropometric measurements and sprint tests were performed. In general, the players had a low carbohydrate intake and adequate protein intake, with no significant differences depending on the category and playing position. For senior players, positive correlations were found between protein intake and bone mass (r = 0.584, p = 0.022), polyunsaturated fatty acid intake and muscle mass (r = 0.387, p = 0.026) and finally between fat mass and animal protein intake (r = 0.569, p = 0.027). Body composition was similar in both categories; however, goalkeepers had the highest fat (22.6 ± 3.86%, 16.2 ± 4.84 kg) component (vs. wings: 17.4 ± 3.53%, p = 0.031/vs. specialists: 11.1 ± 1.91 kg, p = 0.034), and senior players had higher muscle mass (kilograms). It is worth noting the finding that players with a greater trochanter height had significantly lower sprint times (p = 0.014 and p = 0.048 for 5 and 10 m, respectively). Certain bone characteristics, such as iliospinale height, biacromial and bimalleolar diameters, mesosternal perimeter and biceps skinfold, differ depending on the position. In addition, the greater speed of the senior players may be due to the greater specialization, number of training sessions performed and specific bone characteristics, such as trochanter height. In this regard, the data provided in this study will assist with establishing criteria for the selection of talent for this sporting discipline.Item Influence of Body Composition on Cardiorespiratory Fitness and Metabolic Markers in Physically Inactive Individuals with Insulin Resistance: An Observational Study(2023-02-09) Azócar-Gallardo, Jairo; Ojeda-Aravena, Alex; Báez-San Martín, Eduardo; Campos-Uribe, Victor; González-Rojas, Luis; Castillo Cerda, María A.; García-García, José ManuelThe aim of this study was to determine body composition influence on cardiorespiratory fitness and metabolic markers in physically inactive individuals with insulin resistance (IR). Nineteen overweight and obese (body mass index [BMI] 25.0–29.9 kg·m−2; ≥ 30.0 kg·m−2, respectively) patients diagnosed with IR (5 men and 14 women; age: 32.74 ± 10.07 years; BMI: 32.5 ± 4.60 kg·m−2). The body composition included BMI, fat mass, and fat-free mass. Cardiorespiratory fitness was measured by maximal oxygen uptake (VO2max). Metabolic markers included maximal fat oxidation, fasting glucose, and insulin. IR was determined by homeostatic model assessment (HOMA-IR). The results of the partial correlations (i.e., body mass, age, and sex) reported that fat-free mass, fat mass, and BMI were significantly correlated with VO2max. Additionally, the multiple linear regression model indicated that fat-free mass and BMI explained the variance of VO2max by 89%. However, no substantial correlations were reported between fat mass or fat-free mass with HOMA-IR, fasting glucose, or insulin. This study concluded that a higher percentage of fat-free mass and lower BMI is positively related to better cardiorespiratory fitness despite the IR status of the participants analyzed.Item Anthropometric profile, cardiorespiratory capacity and pulmonary function in an elite Chilean triathlete: A case study(2023-04-28) Yáñez-Sepúlveda, Rodrigo; Cortés-Roco, Guillermo; Rivera-Kofler, Tomás; Báez-San Martín, Eduardo; Tuesta, MarceloThe objective of this study was to describe the anthropometric profile, cardiorespiratory capacity and lung function in a high-performance Chilean triathlete ranked first in the national ranking. For this, the body composition profile proposed by Kerr, the somatotype according to Carter and Heath, lung volumes with spirometry according to the criteria of the ATS/ERS, the maximum dynamic inspiratory strength (S-index), the maximum inspiratory flow (FMI) and the maximum oxygen consumption (VO2max) with a treadmill cardiopulmonary exercise test were evaluated. The results showed 50.30% (30.28 kg) of muscle tissue, 21.46% (12.92 kg) of adipose tissue, a musculoskeletal index of 4.4, and a balanced mesomorphic somatotype (ENDO 2.0 – MESO 5.1 – ECTO 2.3). The VO2max was 77 ml/kg/min, the S-Index was 189 cmH2O, the FIM was 10.1 l/sec, the FEV1 was 4.08 l, maximum voluntary ventilation (MVV) was 153 l and a maximum expiratory flow (FEM) of 584 l. In conclusion, the triathlete has a high level of muscle tissue and optimal percentage of subcutaneous body fat with a balanced physical form towards the muscle component. An outstanding cardiorespiratory capacity, inspiratory strength and lung function represents a great adaptation to the endurance tests that make up triathlon, especially swimming on inspiratory strength. Morphofunctional changes associated with the high-performance sports discipline are observed.