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Journal of Human Kinetics

Romualdas Malinauskas, Vilija Malinauskiene
This study aimed to examine the relationship between emotional intelligence (EI) and psychological wellbeing in a three-month follow-up study of male athletes. In addition, we examined the mediating role of perceived social support and perceived stress on the relationship between EI and psychological wellbeing. The sample included 398 male athletes who completed measures of emotional intelligence (Schutte Self-Report Inventory), psychological wellbeing (Ryff Psychological Wellbeing Scale; SSRI), perceived social support (Multidimensional Scale of Perceived Social Support), and perceived stress (Perceived Stress Scale-10)...
December 2018: Journal of Human Kinetics
Takehiro Iwatsuki, Judy L Van Raalte, Britton W Brewer, Albert Petitpas, Masanori Takahashi
The purpose of this study was to examine relations among reinvestment, self-regulation, and perception of choking under pressure in skilled tennis players. Participants were 160 collegiate players from the NCAA Division I in the U.S. and the 1st League in Japan. Participants completed questionnaires assessing reinvestment (conscious motor processing and movement self-consciousness), self-regulation, and perception of choking under pressure. Results of correlation analysis indicated self-regulatory factors were positively related to reinvestment conscious motor processing, but not with reinvestment movement self-consciousness...
December 2018: Journal of Human Kinetics
Scott A Graupensperger, Marie S Tisak
Task cohesion (i.e., perceptions of team unity towards a task goal and positive feelings towards one's own involvement) is associated with myriad psychosocial benefits for youth athletes. Accordingly, sport researchers and youth sport stakeholders are interested in ways of fostering task cohesion. Recent work has found evidence that prosocial and antisocial behaviors among teammates are associated with athletes' perceptions of task cohesion; however, this research has been limited to moral behavior that takes place during gameplay...
December 2018: Journal of Human Kinetics
Joanna Basiaga-Pasternak
The aim of the study was to present the relationships between the way of perceiving oneself and the world by young athletes, the cognitive anxiety and the ways of coping with stress. The target group consisted of 222 participants (114 boys and 108 girls) aged 16-20, students of sports-profiled secondary schools. The participants specialised in both winter and summer sports, as well as in individual and team sport disciplines. The following tools were implemented: Attitudes to Intrapersonal, Interpersonal and to the World Questionnaire, Coping Inventory for Stressful Situations (CISS) and Sport Anxiety Scale...
December 2018: Journal of Human Kinetics
Michal Wilk, Michal Krzysztofik, Mariola Gepfert, Stanislaw Poprzecki, Artur Gołaś, Adam Maszczyk
Blood flow restriction (BFR) combined with resistance training (RT-BFR) shows significant benefits in terms of muscle strength and hypertrophy. Such effects have been observed in clinical populations, in groups of physically active people, and among competitive athletes. These effects are comparable or, in some cases, even more efficient compared to conventional resistance training (CRT). RT-BFR stimulates muscle hypertrophy and improves muscle strength even at low external loads. Since no extensive scientific research has been done in relation to groups of athletes, the aim of the present study was to identify technical, physiological and methodological aspects related to the use of RT-BFR in competitive athletes from various sport disciplines...
December 2018: Journal of Human Kinetics
Tiago Cetolin, Anderson Santiago Teixeira, Almir Schmitt Netto, Alessandro Haupenthal, Fábio Yuzo Nakamura, Luiz Guilherme Antonacci Guglielmo, Juliano Fernandes da Silva
The aims of this study were to compare the internal training load (ITL) in soccer players of two competitive age groups (under-15 [U-15] and under-19 [U-19]) during an 8-week preseason training period and compare the associated changes in physical performance measures. Eighteen U-15 and twelve U-19 players were monitored over an 8-week period during the preseason phase. The ITL was monitored using the session rating of perceived exertion (RPE) method. Before and after the preseason period, physical performance was assessed by best (RSAbest ) and mean (RSAmean ) times in a repeated sprint ability (RSA) test and peak velocity derived from the Carminatti test (PVT-CAR)...
December 2018: Journal of Human Kinetics
Rūtenis Paulauskas, Nerijus Masiulis, Alejandro Vaquera, Bruno Figueira, Jaime Sampaio
This study aimed to identify the game-related statistics that discriminated between Euroleague basketball players and European basketball players playing in the NBA, when competing in the same event (EuroBasket 2015). There was a total of 78 matches played by 24 teams in two groups of analysis: NBA, participants in the European Championship who played in the NBA season of 2014-2015 (n = 26); Euroleague, participants in the European Championship who played in the Euroleague season of 2014-2015 (n = 82). The players' performance variables were normalized to the time they spent on the court...
December 2018: Journal of Human Kinetics
Carlos Lago-Fuentes, Ezequiel Rey, Alexis Padrón-Cabo, Alejandro Sal de Rellán-Guerra, Ana Fragueiro-Rodríguez, Javier García-Núñez
The aim of this study was to assess the effect of core strength training performed on a stable surface (CTS) compared with core strength training performed on an unstable surface (CTU) on physical fitness (jump performance, sprint, and repeated sprint ability (RSA)) and quality of movement (Fundamental Movement Screen) in professional female futsal players. Fourteen professional female futsal players (mean age: 23.7 ± 5.1 years, age range: 18-28 years) were randomly assigned to a CTS (n = 7) or a CTU (n = 7) group...
December 2018: Journal of Human Kinetics
Zoran Grgantov, Igor Jelaska, Dragutin Šuker
The primary goal of this study was to identify and explain differences in a volleyball set between winning and defeated teams, based on frequency and efficiency of the attack and counterattack, both overall and from particular zones of the volleyball court. Research was conducted on a randomly chosen sample of 206 sets played in 55 matches of the Men's Champions League. A total of 10555 spikes in the attack and counterattack from various zones of the volleyball court were analyzed. Between-subjects 2×5 factorial ANOVA (Outcome×Zone) was used to identify significant differences between the set outcome and zones or their interaction for both attack and counterattack efficiency...
December 2018: Journal of Human Kinetics
Cristina López de Subijana, Jorge Lorenzo
The aims of this study were: i) to analyze whether relative age effect occurs in the athletes of the junior national teams and professional athletes in Spain in general and in soccer and basketball, and ii) to compare the long-term success of the players selected for the junior national team between these sports. The samples for this study were Spanish professional soccer (n = 461) and basketball (n = 250) players in the 2013-2014 premier league and players from the junior Spanish soccer (i.e., n = 273; U-17: n = 107; U-19: n = 166) and basketball (i...
December 2018: Journal of Human Kinetics
Cesare Altavilla, Roberto Cejuela, Pablo Caballero-Pérez
To compare the effect of three different feedback modalities on swimming pace, sixteen male swimmers and triathletes participated in this study. Each participant swam 3 x 400 m, one for each feedback modality, swimming front crawl at 80% of their individual swimming critical speed. Three feedback modalities were examined: self-pacing, real time visual feedback and real time voice feedback. The swimmers adopted a fast start in all feedback modalities. In the real time voice feedback modality, the data recorded during the second lap (200 m) showed a significant improvement of their swimming pace approaching the swimming pace intended (-1...
December 2018: Journal of Human Kinetics
Ângelo Brito, Paulo Roriz, Pedro Silva, Ricardo Duarte, Júlio Garganta
The aim of this study was to analyze the effect of different pitch surfaces (artificial turf, natural turf and dirt field) on positioning and displacement of young soccer players (age: 13.4 ± 0.5 yrs; body height: 161.82 ± 7.52 cm; body mass: 50.79 ± 7.22 kg and playing experience: 3.5 ± 1.4 yrs). Data were collected using GPS units which allowed to calculate spatial distribution variability, assessed by measuring entropy of individual distribution maps (ShannEn). Ellipsoidal areas (m2) representing players' displacement on the pitch, centred on the average players' positional coordinates, were also calculated, with axes corresponding to the standard deviations of the displacement in the longitudinal and lateral directions...
December 2018: Journal of Human Kinetics
Alexis Padrón-Cabo, Ezequiel Rey, Benjamín Vidal, Javier García-Nuñez
The aims of this study were to evaluate physical performance of substitute players versus those replaced or completing the entire match, determine physical performance of substitute players across different playing positions and examine variations in match-related running performance in substitute players throughout the entire competitive season. The sample was composed of 943 observations of professional players who participated in the first division of the Spanish League (La Liga) during the 2014-2015 season...
December 2018: Journal of Human Kinetics
Cezary Kucio, Petr Stastny, Bożena Leszczyńska-Bolewska, Małgorzata Engelmann, Ewa Kucio, Petr Uhlir, Magdalena Stania, Anna Polak
The study compares the effect of an exercise-based cardiac rehabilitation program with a program combining physical exercise and lower extremity neuromuscular electrical stimulation (NMES) on the recovery of patients with chronic heart failure (CHF) with NYHA II-III symptoms. Seventy two patients with stable CHF were randomly distributed to four groups that received exercise-based cardiac rehabilitation and pharmacological treatment. Groups I and II were additionally administered NMES (35 Hz and 10 Hz, respectively) and in Group III sham NMES was applied...
December 2018: Journal of Human Kinetics
Alexandre Moreira, Marcelo Saldanha Aoki, Ademir Felipe Schultz de Arruda, Daniel Gomes da Silva Machado, Hassan Mohamed Elsangedy, Alexandre Hideki Okano
Salivary cortisol increases in response to stressors, including physical exertion and psychological stress associated with sports competition. In addition, stress may induce change in brain-derived neurotrophic factor (BDNF). However, there are still no data available to compare the salivary BDNF level in sedentary male individuals and elite team-sport male athletes, regularly involved in activities that require elevated attention and concentration. This information could contribute to the advance of understanding of the effect of regular exercise on the salivary level of BDNF, the pre-to-post change in salivary BDNF during exercise, and the association between salivary cortisol and salivary BDNF responses to physical exercise...
December 2018: Journal of Human Kinetics
Małgorzata Michalczyk, Adam Zajac, Kazimierz Mikolajec, Grzegorz Zydek, Józef Langfort
Recently, low carbohydrate diets have become very popular due to their numerous health benefits. Unfortunately, little is known about their chronic effects on the blood lipid profile and other cardiovascular disease risk factors in athletic populations. We compared the results of a four week, well-planned low carbohydrate diet (LCD) followed by seven days of carbohydrate loading (Carbo-L) on fasting lipids - triacylglycerol's (TAG), LDL-C, HDL-C, total cholesterol (TCh), glucose, insulin and HOMA-IR levels in 11 competitive basketball players...
December 2018: Journal of Human Kinetics
Artur Magiera, Robert Roczniok, Ewa Sadowska-Krępa, Katarzyna Kempa, Oskar Placek, Aleksandra Mostowik
Rock climbing is a physical activity that not only causes an increase in muscle tension, heart rate and blood pressure, but also results in the elevation of stress hormones including cortisol. It has not been established which of the above mentioned variables serve as the most accurate indicator of rock climbing-induced physical and mental stress. The aim of this study was to evaluate the effect of physical activity, short-term fatigue and mental demand on heart rate (HR), salivary cortisol (C) and blood plasma lactate (LA) concentrations in rock climbers under laboratory conditions...
December 2018: Journal of Human Kinetics
Petr Kutáč, Jaroslav Uchytil
The objective of the study was to assess differences between the take-off and non-take-off limbs of athletes in track-and-field jumping events based on a segmental analysis of body composition as well as kinetic analysis. The research included 19 participants (10 males, 9 females) with an average age of 18.1 ± 2.8 years. We measured body height, body mass, body composition (body fat, fat free mass, bone mineral content and bone density) and segmental distribution of these variables. To assess strength of the lower limbs, we performed reaction force analysis during take-off and run symmetry...
December 2018: Journal of Human Kinetics
Michal Kumstát, Tomáš Hlinský, Ivan Struhár, Andy Thomas
The aim of this study was to investigate the effect of ingesting sodium bicarbonate (SB) and sodium citrate (SC) on 400 m high-intensity swimming performance and blood responses. Six nationally ranked male swimmers (20.7 ± 2.1 yrs; 184 ± 6 cm; 79.9 ± 3.9 kg; 10.6 ± 1% body fat) participated in a double blinded, placebo controlled crossover trial. Ninety minutes after consuming SB (0.3 g·kg-1 ), SC (0.3 g·kg-1 ) or a placebo (PL) participants completed a single 400-m freestyle maximal test on three consecutive days...
December 2018: Journal of Human Kinetics
Dariusz Jastrzębski, Aleksandra Żebrowska, Sebastian Rutkowski, Anna Rutkowska, Joanna Warzecha, Bettina Ziaja, Aleksandra Pałka, Barbara Czyżewska, Damian Czyżewski, Dariusz Ziora
The aim of this study was to evaluate the influence of exercises on a stabilometric platform on the physical fitness and mobility of patients with lung cancer after thoracic surgery. The Experimental Group included 22, and the Control Group consisted of 21 patients. All included patients were enrolled after thoracic surgery due to lung cancer. The Experimental and Control Groups were enrolled in a 3-week in-hospital pulmonary rehabilitation program. The Experimental Group additionally performed daily 20-min training sessions on a stabilometric platform...
December 2018: Journal of Human Kinetics
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