PERFORMANCE COEFFICIENT OF THE MASTER VOLLEYBALL SKILLS ACCORDING TO THE CLASSIFICATION (Original)

El objetivo del estudio fue determinar el coeficiente de rendimiento (CR) de las acciones de juego del voleibol master. El estudio fue compuesto por 15 partidos del voleibol master masculino de la categoría de 35 años o más. El análisis del partido se practicó de 4 partidos del equipo de voleibol 1° y 2° lugar del Campeonato Carioca y de 12 partidos del equipo de voleibol 3° a último lugar. Los datos fueron recogidos con la cámara en el gimnasio. Después de la recolección de datos, el investigador practicó el match analysis con un scout elaborado en el Excel®. La prueba U de Mann Whitney (U = 8329, p = 0,0002) detectó diferencia estadística del CR de la defensa entre el equipo de voleibol 1° y 2° lugar (PC of 1,86±1,01) versus el equipo de voleibol 3° a último lugar (PC of 1,37±1,01). La nueva estadística de Cumming (2014) detectó diferencia estadística de la defensa, Overlap = -0,35, p = 0,001. En conclusión, el estudio de las habilidades del voleibol master masculino de la categoría de 35 años o más es importante para guiar al entrenador durante la prescripción de entrenamiento.The objective of the study was to determine the performance coefficient (PC) of the male master volleyball skills according to the classification. The study was composed by 15 matches of the male master volleyball of the category 35 years or more. The match analysis was practiced of 4 matches of the volleyball team 1st and 2nd place of the Carioca Championship and of 12 matches of the volleyball team 3th to last place. The data were collected with the camera in gymnasium. After the data collect, the researcher practiced the match analysis with a scout prepared in the Excel®. Mann Whitney U test (U = 8329, p = 0,0002) detected statistical difference of the PC of the defense between the volleyball team 1st and 2nd place (PC of 1,86±1,01) versus the volleyball team 3rd to last place (PC of 1,37±1,01). The new statistic of Cumming (2014) detected statistical difference of the defense, Overlap = -0,35, p = 0,001. In conclusion, the study of the volleyball skills of the male master volleyball of the category 35 years or more is important for guide the coach during the training prescription

SERVE PERFORMANCE OF THE MALE MASTER VOLLEYBALL

The objective of the study was to determine of the male master volleyball the performance of the type of serve and the effect of the serve in the reception zone. The study was composed by 15 matches of the male master volleyball of the category 35 years or more. The volleyball matches were filmed and after was analyzed with the scout. The significance p and new statistic detected statistical difference of the serve continuity in two comparisons (16.87±8.92 of the overhand float serve versus 3.85±2.28 of the jump power serve, 14.07±6.47 of the jump float serve versus the jump power serve). Other result the significance p and new statistic detected statistical difference of the serve continuity in the reception zone in four comparisons (1.20±0.44 of the zone 2 versus 10.67±3.79 of the zone 5, zone 2 versus 13.67±5.36 of the zone 6, 2.87±3.39 of the zone 3 versus zone 5 and zone 3 versus zone 6). In conclusion, serve performance is important for the volleyball coach guides the player during the training and during the volleyball match

Clinical predictors of outcome in survivors of out-of-hospital cardiac arrest treated with hypothermia

AbstractBackgroundOut-of-hospital cardiac arrest (OHCA) is a leading cause of death and severe neurological disability. The objective of this study was to identify clinical predictors of early neurological outcome in survivors of OHCA managed according to recent recommendations for OHCA care.MethodsData from survivors of OHCA, admitted to a tertiary cardiac intensive care unit and treated with hypothermia in a 22 months period (n=46, age 60±13 years, 74% males) were retrospectively evaluated. At 1-month follow-up, patients were classified according to the best achieved Glasgow–Pittsburgh cerebral performance categories (CPC 1–5) and factors affecting the outcome were analysed.ResultsAt 1-month follow-up, 23 patients (50%) had favourable outcome (CPC 1–2), while 23 patients (50%) had poor outcome (CPC 3–5), including 19 with in-hospital death (41% of total). Patients with good outcome were younger (55±13 years vs. 66±10 years; P=0.003), had more often myocardial infarction as the cause of arrest (63% vs. 30%; P=0.018) and ventricular fibrillation/tachycardia as an initial rhythm (78% vs. 39%; P=0.007). Both groups differed by lactate level on admission (4.0±4.6 vs. 7.3±4.1mmol/l, P=0.02), after 12h (2.5±1.1 vs. 4.3±3.2mmol/l, P=0.04) and after 24h (1.9±1.2 vs. 3.2±1.9mmol/l, P=0.04). Logistic regression revealed the following independent outcome predictors: age, acute myocardial infarction and admission lactate level.ConclusionFavourable outcome was observed in a half of OHCA survivors. Young age, acute myocardial infarction as underlying aetiology of cardiac arrest, and low lactate level on admission were the best predictors of favourable outcome

An Exploratory Study on the Factors Influencing Managers’ Use of Mobile Tablets

Although mobile tablets such as iPads are being used by many managers, there has been a relative dearth of research on the managerial use of the mobile technology. This exploratory study aims to identify and understand the factors influencing the use of mobile tablets by managers. Semi-structured interviews were conducted with a panel of seven managers who had incorporated mobile tablets into their work routine. The study has found that the mobile tablet is a suitable device for managerial tasks due to these nine main factors: non-routineness, collaborative nature, time-critical, information-centric, mobility, user friendliness of the interface, reliability, connectivity, and autonomy. This exploratory study fills in the research gap and provides a basis to help managers establish a business case for or against mobile tablets adoption

Catheter Ablation of Atrial Fibrillation

Catheter ablation of atrial fibrillation (AF) has become a viable therapeutic alternative in symptomatic patients resistant to antiarrhythmic drugs. Since the first report of catheter ablation a decade ago, several techniques have evolved. These techniques reflect principal mechanisms of AF. Besides segmental electrical isolation, circumferential ablation around the pulmonary venous ostia with a support of the 3D electroanatomical mapping system appears to be the most frequently used techniques. Some authors use various combinations of these techniques including guidance with intracardiac echocardiography (ICE). Most recently, ablation within areas of fractionated electrograms during AF has been proposed. The aim of this review is to summarize briefly current techniques, their efficacy and safety

801-4 Prognostic Implications of QT and QU Interval Measures in Acute Myocardial Infarction

Prolongation of the QT interval corrected using Bazett's formula (QTc) has been reported as a marker for increased risk of arrhythmic events after acute myocardial infarction (AMI). However, the QU interval changes have not been examined. At the same time, QU interval may be of clinical significance, especially in the light of recent experimental evidence linking the U wave with the subpopulation of the so-called M cells within myocardial wall. To evaluate prognostic significance of QT and QU interval measures in AMI, we studied 512 survivors of acute phase of their first myocardial infarction. Patients with conduction defects and drugs likely to affect QT measures were noT included into the analysis. The following intervals were estimated in all the measurable leads on a standard predischarge 12-lead ECG (25 mm/sec paper speed) using a digitizing pad—mean RR, mean and max QT, and mean QU. All QT and QU intervals were subsequently corrected for heart rate using Bazett's formula. At one year follow-up, 23 patients (Group I. 19 male. mean age 58.7±8.9 years) suffered arrhythmic events (VT/VF or sudden cardiac death). This subset of patients was compared with arrhythmia-free group of 489 subjects (Group II, 385 male, mean age 56.1±9.2 years). Statistical analysis was performed using unpaired t-test and ANOVA, results are expressed as mean±SD.GroupQT meanQTc meanQT maxQTc maxQU meanQUc meanI358.7±31.5426.6±30.7396.5±38.5472.8±40.3459.5±58.7535.2±41.3II387.3±44.1423.9±24421.7±51.5467.9±79.1552.0±73.9585.7±55.1p<0.002NS0.02NS0.0010.01The significant difference in QU and QUc, but not in QT intervals persisted even after elimination of the effect of heart rate (ANOVA: p<0.007 and 0.011, respectively).ConclusionThe differences in the QT but not QU interval measures in the 2 groups can be explained by differing heart rates. Shorter QU interval seemed to identify patients at risk of arrhythmic events after AMI. The pathophysiological basis for this finding is not clear, but could be related to differences in the subpopulation of M cells within myocardial wall

FIGHT ZONE WITH POINTS OF THE SHOTOKAN KARATE FEMALE COMPETITION

The objective of the study was to determine the fight zone with point during the female kumite of competition. This study used a quantitative research for identify the fight zone with point (ippon or waza-ari) or not during the female kumite of competition. Were selected on the Internet several championship of kumite of the JKA and of the ITKF. The study detected a high probability of point in the zone 7 and in the zone 2. The study determined that the most points at the corner occurred when the karateka practiced the attack in fight zone. Kruskal-Wallis ANOVA verified significant difference between the fight zone with points, H (10) = 29,49, p = 0,001. The Mann Whitney U test detected significant difference between the zone 5 with waza-ari versus all the zone. The greatest number of points in the fight zone was in agreement with the size of the fight zone. The central zone or zone 5 has 6x6 m, during the female kumite occurred more points, total of 68 waza-aris and 5 ippons. The study on the fight zone with points of the female kumite permits that the karateka has knowledge about the combat zones and guides the karateka before, during and after the female kumite. However, more studies should be done to confirm these findings

Periodização de carga concentrada técnica e tática para o karatê shotokan (Original).

Combat sports began in ancient Greece during the Olympic Games, and these fights became widespread with their introduction to the Olympic Games of the modern era. The sporting aspect also reached shotokan style karate, the first championship of this fight occurred in 1936 in Japan. The objective of the review was to elaborate a theoretical content of periodization for the shotokan karate. Shotokan karate has three pillars for excellent development of the karateka, which are kihon, kata, and kumite. All shotokan karate training is centered on these three contents. The characteristic of the training of shotokan karate is a load concentrated on technique and tactics. The technical and tactical concentrated load in this periodization occurs in kihon, kata and kumite. This conception of periodization has a block of technical and tactical concentrated load that usually occurs in most training sessions. In this periodization there are microcycles, mesocycles, and periods, which can be prescribed according to the trainer's needs. In conclusion, the technical and tactical concentrated load periodization makes the structuring of the shotokan karate training with scientific standards, but this content is still just a theory that needs field studies to verify the effectiveness of this conception of periodization.Os esportes de combate começaram na Grécia antiga durante os Jogos Olímpicos, sendo difundida essas lutas com a introdução delas nos Jogos Olímpicos da era moderna. O aspecto esportivo também atingiu o karatê de estilo shotokan, o primeiro campeonato dessa luta aconteceu em 1936 no Japão. O objetivo da revisão foi de elaborar um conteúdo teórico de uma periodização para o karatê shotokan. O karatê shotokan possui três pilares para ocorrer um excelente desenvolvimento do karateca que são o kihon, o kata e o kumite. Todo treinamento do karatê shotokan está centrado nesses três conteúdos. A característica do treino do karatê shotokan é de uma carga concentrada na técnica e na tática. A carga concentrada técnica e tática nessa periodização ocorrem no kihon, no kata e no kumite. Essa concepção de periodização possui um bloco de carga concentrada técnica e tática que costuma ocorrer na maioria dos treinamentos. Essa periodização prioriza o trabalho técnico e tático, o treino físico fica subordinado aos três conteúdos do treino do karatê shotokan (kihon, kata e kumite) que formam o bloco de carga concentrada técnica e tática. Nessa periodização existem microciclos, mesociclos e períodos, podendo ser prescrito conforme as necessidades do treinador. Em conclusão, a periodização de carga concentrada técnica e tática torna a estruturação do treino do karatê shotokan com padrões científicos, mas ainda esse conteúdo é apenas uma teoria que necessita de estudos de campo para verificar a eficácia dessa concepção de periodização.Os esportes de combate começaram na Grécia antiga durante os Jogos Olímpicos, sendo difundida essas lutas com a introdução delas nos Jogos Olímpicos da era moderna. O aspecto esportivo também atingiu o karatê de estilo shotokan, o primeiro campeonato dessa luta aconteceu em 1936 no Japão. O objetivo da revisão foi de elaborar um conteúdo teórico de uma periodização para o karatê shotokan. O karatê shotokan possui três pilares para ocorrer um excelente desenvolvimento do karateca que são o kihon, o kata e o kumite. Todo treinamento do karatê shotokan está centrado nesses três conteúdos. A característica do treino do karatê shotokan é de uma carga concentrada na técnica e na tática. A carga concentrada técnica e tática nessa periodização ocorrem no kihon, no kata e no kumite. Essa concepção de periodização possui um bloco de carga concentrada técnica e tática que costuma ocorrer na maioria dos treinamentos. Essa periodização prioriza o trabalho técnico e tático, o treino físico fica subordinado aos três conteúdos do treino do karatê shotokan (kihon, kata e kumite) que formam o bloco de carga concentrada técnica e tática. Nessa periodização existem microciclos, mesociclos e períodos, podendo ser prescrito conforme as necessidades do treinador. Em conclusão, a periodização de carga concentrada técnica e tática torna a estruturação do treino do karatê shotokan com padrões científicos, mas ainda esse conteúdo é apenas uma teoria que necessita de estudos de campo para verificar a eficácia dessa concepção de periodização.Os esportes de combate começaram na Grécia antiga durante os Jogos Olímpicos, sendo difundida essas lutas com a introdução delas nos Jogos Olímpicos da era moderna. O aspecto esportivo também atingiu o karatê de estilo shotokan, o primeiro campeonato dessa luta aconteceu em 1936 no Japão. O objetivo da revisão foi de elaborar um conteúdo teórico de uma periodização para o karatê shotokan. O karatê shotokan possui três pilares para ocorrer um excelente desenvolvimento do karateca que são o kihon, o kata e o kumite. Todo treinamento do karatê shotokan está centrado nesses três conteúdos. A característica do treino do karatê shotokan é de uma carga concentrada na técnica e na tática. A carga concentrada técnica e tática nessa periodização ocorrem no kihon, no kata e no kumite. Essa concepção de periodização possui um bloco de carga concentrada técnica e tática que costuma ocorrer na maioria dos treinamentos. Essa periodização prioriza o trabalho técnico e tático, o treino físico fica subordinado aos três conteúdos do treino do karatê shotokan (kihon, kata e kumite) que formam o bloco de carga concentrada técnica e tática. Nessa periodização existem microciclos, mesociclos e períodos, podendo ser prescrito conforme as necessidades do treinador. Em conclusão, a periodização de carga concentrada técnica e tática torna a estruturação do treino do karatê shotokan com padrões científicos, mas ainda esse conteúdo é apenas uma teoria que necessita de estudos de campo para verificar a eficácia dessa concepção de periodização

PHYSICAL PROFILE (skill time) AND PERFORMANCE OF SOME CONDITIONING CAPACITIES (skill reach) OF THE MASTER VOLLEYBALL DURING THE SETS

The objective of the study was to analyze of each set the physical profile (attack ball time, serve ball time and setter time) and some conditioning capacities (block reach, block jump, spike reach and spike jump). The study was composed of 15 matches of the male master volleyball of the category 35 years or more. The data were collected with the camera in a gymnasium. After the data collected, the researcher practiced the physical performance analysis with the Kinovea® software and wrote on a scout. Kruskal Wallis ANOVA did not identify statistical difference during each set of the block reach [H (2) = 5,66, p = 0,05], of the spike reach [H (2) = 3,45, p = 0,17], of the attack ball time [H (2) = 4,08, p = 0,12], of the serve ball time [H (2) = 2,51, p = 0,28] and of the setter time [H (2) = 2,39, p = 0,30]. The new statistic did not identify a statistical difference of the physical performance data (block and spike reach, attack and serve ball time and the setter time). In conclusion, the analysis of the physical performance during each set is important to guide the physical training