367 research outputs found
Análisis temporal del combate de judo en competición
This study seeks to analyze the temporal structure of combat in judo competition. Therefore, 14 finals of men¿s and women¿s under-23 Spanish Championship were studied. Variables such as time of total work, total and mean rest time, time of total and mean work on the floor, time of total and mean work while standing, the total and mean number of work and rest sequences were analyzed. Among the results that can be highlighted include the significant differences among men and women in mean rest time, and the mean time of standing judo work. This type of analysis tries to contribute different aspects in planning and organizing the practice of judo in a more specific wayEl presente trabajo pretende analizar la estructura temporal del combate de judo de competición. Para ello, se consideraron 14 finales del Campeonato de España sub¿23 tanto en categoría masculina como femenina. En ellas se analizaron variables como tiempo de trabajo total, tiempo de descanso total y medio, tiempo de trabajo total y medio en suelo, tiempo de trabajo total y medio en pie, y el número total y medio de secuencias de trabajo y descanso. Entre los resultados destacan las diferencias significativas entre sexos del tiempo medio de pausa, y el tiempo medio de trabajo de judo pie. Este tipo de análisis intentarán aportar diferentes aspectos para planificar y organizar el entrenamiento de judo de una forma más específic
Serve profile of male and female professional tennis players at the 2015 Roland Garros Grand Slam tournament
The aim of this study was to compare the serve statistics profile of male and female high-level tennis players. In all, 111 tennis singles matches of the Roland Garros 2015 tennis tournament were collected and 10 variables related to first and second serve were analyzed according to service box (deuce and advantage sides) and landing location (wide, body and T-areas). The results show: (a) men served faster than women; (b) men served a higher percentage of serves at T-area on deuce side (35.0 vs 27.7%) and at the wide zone on advantage side (44.1 vs 36.7%) with first serves, while women hit more to the body on both sides; (c) men won a higher percentage of points with their first serve compared to women at any zone on both sides, except for the T-area on deuce side; (d) with their second serve, men placed a greater percentage of serves in the T-area on deuce side (28.0 vs 21.8%) and wide on the advantage side, whereas women directed more to the body on the advantage side (41.4 vs 33.5%); (e) men won a higher percentage of points with their second serve when they placed it to the body zone on deuce side (54.1 vs 47.1%) and at the T-area on the advantage side (64.4% vs 44.1%). Our conclusions are that with respect to gender, players showed differing serve patterns. Men served faster, with higher success and placed their serves more frequently to the external areas of the service boxes, while women directed a higher percentage of serves to the body of their opponent
Statistical Differences in Set Analysis in Badminton at the RIO 2016 Olympic Games
The aim of the present study was to determine statistical differences in a set of badminton competition matches in five different modalities with regard to competition level (Group Phase vs. Eliminatory Phase). Data from 453 sets (125 in men's singles; 108 sets in women's singles; 77 sets in men's doubles; 73 in women's doubles and 70 in mixed doubles) from the RIO 2016 Olympics Games were recorded and classified in two groups of variables to analyze variables related to match (5) and set (15). A descriptive analysis and univariate test (Mann-Whitney U) for non-parametric data were conducted. The results show in men's and women's singles all the variables related to match were higher in the Elimination Phase than in the Group Phase (p < 0.01). In Sets 1 and 3, the longest set duration, rally and average rally were found in the Elimination Phase than Group Stage (p < 0.05). In women's singles, these differences were also recorded in Set 2. For doubles, the results are more stable among groups. Men's doubles had a longer duration of the match and set (sets 1 and set 2) (p < 0.01), and also scored highest for average rally strokes (sets 1 3) < 0.05) and shuttles used in the Elimination Phase vs. the Group Phase along the match (p < 0.01). In women's doubles, more shuttles were used in a match in the Elimination than in the Group Phase. Moreover, the same results are established for Set 2, including for average rally. Mixed doubles saw no match going to three sets. However, the greatest differences showed a longer rally and average rally being registered in the Elimination than in the Group Phase. In conclusion, the timing factors of the badminton singles and doubles games were different in the Elimination and Group Phases. This information may help players and coaches prepare and administer different types of workouts or, more specifically, competition schedules adapted to the characteristics of modern badminton
Efectos de un programa de actividad física con el método pilates sobre la funcionalidad de mujeres embarazadas. Estudio piloto
This study aims to determine the effect of a Pilates programme on functionality in pregnant women; and to analyse its impact on childbirth. A group of 10 pregnant women developed a Pilates program for 8 weeks (2 sessions/week), overall functionality was assessed through functional tests Overhead Squat (OHS), Hurdle Step (HS), Forward Step Down (FSD), Shoulder Mobility (SM) and Active Straight Leg Raise (ASLR), as well as the type of subsequent delivery. The results show an improvement in the functionality of the Hurdle test; Forward step down and Shoulder mobility test (p<0.01), as well as a significant decrease in compensation and overall risk of injury after the physical activity programme (p<0.01). In turn, the delivery was healthier. The effects of Pilates on pregnant women offer improvements in overall functionality and a positive effect on childbirth.El presente estudio pretende determinar el efecto de un programa de Pilates sobre la funcionalidad en mujeres gestantes y analizar su repercusión en el parto. Un grupo de 10 mujeres embarazadas desarrollaron un programa de Pilates durante 8 semanas (2 sesiones/semana), se valoró la funcionalidad global a través de los test funcionales Overhead Squat (OHS), Hurdle Step (HS), Forward Step Down (FSD); Shoulder Mobility (SM) y Active Straight Leg Raise (ASLR), así como el tipo de parto posterior. Los resultados muestran una mejora de la funcionalidad del Hurdle test, Forward step down y Shoulder mobility test (p<0,01), así como un descenso significativo de las compensaciones y riesgo de lesión global después del programa de actividad física (p<0,01). A su vez, se tuvo un parto más saludable. Los efectos del Pilates en mujeres embarazadas, ofrecen mejoras en la funcionalidad global y un efecto positivo en el parto
Incidencia del género en los niveles de actividad física en las clases de educación física
The main objective of this paper is to describe physical activity levels in physical education classes among primary schoolchildren and to observe differences between genders. For these purposes 42 students were selected (22 boys and 20 girls) (10,5 ± 0,8 years of age; 40,5 ± 8,3 kg of mass; 143,8 ± 7,1 cm of heigth; 19,4 ± 3,2 kg/m2 of BMI). Their level of physical activity was assessed using a GT3X accelerometer (Actigraph, Pensacola, FL, USA) carried during five school days, attached at the right hip, with an epoch of 1s. Intensity was determined by cut-offs proposed by Evenson et al. (2008). The results show that students do moderate to vigorous intensity around 17% and 13% for boys and girls respectively. No significant differences were observed.El objetivo principal de este trabajo, es describir los niveles de actividad física en clases de Educación Física con escolares de Educación Primaria y, observar las posibles diferencias según el género. Se seleccionaron 42 estudiantes (22 chicos y 20 chicas) (10,5 ± 0,8 años de edad; 40,5 ± 8,3 kg de masa; 143,8 ± 7,1 cm de altura; 19,4 ± 3,2 kg/m2 de IMC) 4 y se evaluó el nivel de actividad física a través del acelerómetro GT3X (Actigraph, Pensacola, FL, USA) llevado durante los cinco días de la jornada escolar, en la cadera derecha, con un epoch de 1s. La intensidad de la actividad física se determinó mediante los puntos de corte de Evenson et al. (2008). Los resultados muestran que los alumnos realizan actividad física a intensidad moderada y vigorosa en torno a 17% y 13% para chicos y chicas respectivamente, no observándose diferencias significativas estadísticamente
Step test and physical working capacity in female volleyball players: the paradox of better performance in the older athletes
The aim of the present study was to compare two popular submaximal tests of aerobic capacity, the YMCA step test and the physical working capacity at heart rate (HR) 170 bpm test (P170), in competitive female volleyball players. The participants (n = 152, age 12.78-41.67 yrs) were examined for anthropometric characteristics and performed the YMCA step test. Heart rate (HR) was recorded at the end of the test (Stepend) and at the end of the first minute of recovery (Steprec). P170 test was expressed in both absolute (P170,abs, W) and relative values (P170,rel, W.kg-1). In addition, a sub-group (n = 14) was tested again one year later. The YMCA step test correlated largely (Steprec) and very largely (Stepend) with P170,rel (r = –0.58 and r = –0.76, p < 0.001, (respectively), and P170,abs (r = –0.54 and r = –0.68, p < 0.001, respectively). No correlation was observed among percentage changes in the tests of aerobic capacity over a year (p>0.05). Age correlated low-to-moderately with all indices of aerobic capacity (0.23 ≤ │r│ ≤ 0.45, p<0.05), i.e. the older the age, the better the aerobic capacity. Based on the findings of the present study, it was concluded that the YMCA step test (especially the Stepend index) and P170 might be used interchangeably by coaches and trainers to monitor aerobic capacity of female volleyball players. The paradoxically increase of aerobic capacity with age should be attributed to the assessment methods which werebased on HR and to the decrease of maximal H
La interacción social entre el niño sordo y el niño oyente utilizando la realidad aumentada
El propósito del proyecto es mejorar la interacción y la comunicación entre los niños sordo
Step test and physical working capacity in female volleyball players: the paradox of better performance in the older athletes
The aim of the present study was to compare two popular submaximal tests of aerobic capacity, the YMCA step test and the physical working capacity at heart rate (HR) 170 bpm test (P170), in competitive female volleyball players. The participants (n = 152, age 12.78-41.67 yrs) were examined for anthropometric characteristics and performed the YMCA step test. Heart rate (HR) was recorded at the end of the test (Stepend) and at the end of the first minute of recovery (Steprec). P170 test was expressed in both absolute (P170,abs, W) and relative values (P170,rel, W.kg-1). In addition, a sub-group (n = 14) was tested again one year later. The YMCA step test correlated largely (Steprec) and very largely (Stepend) with P170,rel (r = –0.58 and r = –0.76, p < 0.001, (respectively), and P170,abs (r = –0.54 and r = –0.68, p < 0.001, respectively). No correlation was observed among percentage changes in the tests of aerobic capacity over a year (p>0.05). Age correlated low-to-moderately with all indices of aerobic capacity (0.23 ≤ │r│ ≤ 0.45, p<0.05), i.e. the older the age, the better the aerobic capacity. Based on the findings of the present study, it was concluded that the YMCA step test (especially the Stepend index) and P170 might be used interchangeably by coaches and trainers to monitor aerobic capacity of female volleyball players. The paradoxically increase of aerobic capacity with age should be attributed to the assessment methods which werebased on HR and to the decrease of maximal H
Intergroup Emotions, Perceived Threats and Hostility against Foreigners: Comparing Brazil, Portugal, and Spain
This study analyzed whether hostility towards foreigners perceived as competitors in the labor market
would be related to the perception of threat (symbolic and economic) and negative intergroup emotions.
270 people between 18 and 63 years participated. In Brazil (N = 89), mostly men (59%) and average
age 32.5 years; In Portugal (N = 87), mostly men (56.3%) and average age 39.9 years; in Spain (N =
94), mostly women (53.2%) and average age of 32.8 years. The results (t-test, analysis of variance
and multiple regressions) indicated that in Spain negative emotions are associated with less hostility towards immigrants; In Brazil, positive emotions are associated with hostile attitudes. In Portugal, the
relationship between positive emotions and hostility is positive, but not signifi cant. The symbolic threat
was the best predictor of hostility only in the Brazilian sample. Positive emotions predispose to a greater
kindness towards foreigners in the three countries. The main conclusion of the study is that the economic
crisis does not seem to be associated with the perception of competitiveness of foreigners in the local
labor market and hostility towards this social group.O estudo analisou se a hostilidade para com estrangeiros percebidos como concorrentes no mercado de
trabalho estaria relacionada com a percepção de ameaça (simbólica e econômica) e as emoções intergrupais
negativas. Participaram 270 pessoas entre 18 e 63 anos, assim distribuídas: Brasil (N = 89), idade
média de 32.5 anos, maioria de homens (59%); Portugal (N = 87), idade média de 39.9 anos, maioria
de homens (56.3%); e Espanha (N=94), idade média de 32.8 anos, maioria de mulheres (53.2%). Os
resultados do Teste-t, análise da variância e regressões múltiplas indicaram que enquanto na Espanha
emoções negativas se associam a menos hostilidade para com imigrantes, no Brasil é a expressão de
emoções positivas que se encontra associada a tais atitudes hostis. Em Portugal a relação entre emoções
positivas e hostilidade é positiva, mas não signifi cativa. A ameaça simbólica foi o melhor preditor de
hostilidade somente na amostra brasileira. Emoções positivas predizem maior amabilidade para com
estrangeiros nas amostras dos três países. A principal conclusão do estudo é que a crise econômica não
parece estar associada com a percepção de competitividade do estrangeiro no mercado de trabalho local
e a hostilidade para com este grupo social.info:eu-repo/semantics/publishedVersio
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