Repair of calcified left ventricular pseudoaneurysm of long duration

Cardiac pseudoaneurysm is a contained rupture of the myocardium limited by pericardial adhesions or the epicardial wall. Cardiac pseudoaneurysm may cause sudden death with a mortality of 30-45% in the first year, mostly resulting from rupture. Coronal and axial T2-weighted magnetic resonance images of a 65-year-old male patient admitted with dyspnoea, coughing and chest pain, present for the last 10 days, revealed a large pseudoaneursym of the left ventricle. Coronary bypass and left ventricular restoration operation was performed. The patient was eventlessly discharged 8 days after operation. He is in NYHA Class I 21 months postoperatively. The interval between myocardial insult and establishment of diagnosis is unknown in our patient. This is a patient whose left ventricular rupture had been contained for a very long time, possibly years, because a heavily calcified thick pseudoaneurysm wall was encountered during operation, making this case rare in the literature

An Examination of the Relationship Between Aerobic Fitness Level and Bodymass Index in 8 to 12 Year Old Children

The purpose of this study is to examine the relationship between 20 meter shuttle run test performance (aerobic fitness) and body mass index (BMI) among minority elementary school children of low socio-economic level in a physical education and sport program. Participants included 75 students in grades 3-6 (38 boys and 37 girls). A physician’s balance beam and a stadiometer (Holtain, UK) with the sliding vertical bar and hinged horizontal head lever were used to measure children’s weight and height. Then Body Mass Index (BMI) was calculated by dividing the children’s body weight in kilograms by height in meters squared. To examine relationship between 20 meter shuttle run test and BMI, the Pearson product-moment coefficients of correlation and a simple regression were computed. The results indicated that the relationship between 20 meter shuttle run test and BMI was low, negative but statistically significant (r = -.281, p \u3c.01), suggesting that a portion of this total variance may be explained by these measures. Low correlation and regression levels in this study indicate that other studies should be performed to examine such a relationship

The relationship between muscle strength, anaerobic performance, agility, sprint ability and vertical jump performance in professional basketball players

The purpose of this study was to investigate the relationship between isokinetic knee strength, anaerobic performance, sprinting ability, agility and vertical jump performance in first division basketball players. Twelve male first division basketball players participated in this study. The mean age was 25.1 ± 1.7 yrs; mean body height 194.8 ± 5.7 cm; mean body mass 92.3± 9.8 kg; mean PBF 10.1± 5.1; and mean VO 2max 50.55 ± 6.7 ml/kg/min. Knee extension and flexion strengths were measured at 60° and 180°/s, anaerobic performance was evaluated using the Wingate anaerobic power test, sprint ability was determined by single sprint performance (10-30 m), jump performance was evaluated by countermovement (CMJ) and squat jump (SJ) tests and agility performance was measured using the T drill agility test. Extension strength was significantly correlated with peak power at all contraction velocities. However, for mean power, significant correlation was only found between the 60° left and 180° right knee extension strength measurements. No measure of strength was significantly related to the measurements from/results of field tests. Moreover, strong relations were found between the performance of athletes in different field tests (p 0.05). A limitation of the current study is the use of correlation analysis. Correlations do not prove causation, rather that two variables are related in some way. Within these limitations, the current results highlight the need for a comprehensive battery of field tests to evaluate performance in basketball players. © Editorial Committee of Journal of Human Kinetics

External and internal training load relationships in soccer players

The aim of the present study was to examine the relationships between internal training loads (TL) (Polar (PLR), Edwards (EDW) Training-Impulse (TRIMP) session RPE (s-RPE) external TL (Total distance (TD), covered distance in five different zone, number of acceleration (ACC) and deceleration actions (DEC) in professional soccer players. Twenty male professional soccer players (age = 27.6 years; height = 177.6 +/- 7.1 cm; body mass = 69 +/- 8.3 kg) from a professional soccer team voluntarily participated in the study. The correlations between the values were examined individually for each athlete by Pearson correlation test. According to the results of this study showed that there were very large and nearly perfect relations between s-RPE and both HR-based methods (EDW and PLR TRIMP) (respectively, r =.51 -.91; r =.44 -. 90). Additionally, from moderate to large correlations were observed between internal TL methods and external TL methods (walking, number of ACC-DEC actions) (between r =.56 -.82). Moreover, the relations between internal load and external load parameters were weakened in high-speed zones. According to the results of the current study, meanwhile s-RPE may be evaluated in practice as a useful and inexpensive for monitoring the internal TL method, the number of ACC and DEC actions could be appropriate for external TL

Effect of Varying Recovery Duration on Postactivation Potentiation of Explosive Jump and Short Sprint in Elite Young Soccer Players

The purpose of this study was to investigate the effects of postactivation potentiation (PAP) on vertical jump and sprint performances with different recovery durations. Twelve elite young soccer players (average age: 17.0 +/- 0.6 years; body mass: 67.0 +/- 5.4 kg; height: 175.0 +/- 3.5 cm) voluntarily performed countermovement jump (CMJ) and 30-m sprints (with 10-m split times) under unloaded and 4 different recovery duration conditions (R1: 1 minute, R2: 2 minutes, R3: 3 minutes, and R4: 4 minutes) after a set of 3 repetitions of half-squat exercises at 90% of 1-repetition maximum. Electromyographic assessments of both limbs' vastus lateralis (VL) and semitendinosus (ST) muscle activity were also made during the tests. Vertical jump height, sprint time, and VL and ST muscle activity root mean square (RMS) values were analyzed. The results show that players demonstrated significantly better CMJ, 10-, and 30-m sprint performances in the R4 condition compared with the unloaded condition (p 0.05). The players also showed significantly higher RMS values for VL and ST muscle activity in the CMJ and 30-m test performances for both legs in the R4 condition compared with the unloaded, R1, R2, and R3 conditions (p 0.05). According to these results, if sports scientists and coaches desire to increase the PAP effect after heavy resistance training, 4 minutes of recovery time instead of 1, 2, or 3 minutes for CMJ, 10-, and 30-m sprint performances is recommended

A Comparison of Incremental Running Field and Treadmill Tests in Young Soccer Players

The purpose of this study was to compare the incremental running tests performed by young soccer players on a treadmill (Tr) and in the field (FTcod: 100 m change of direction and FTcir: 100 m circle). Nineteen players (average age 17.4 ± 1.1 years; body height 172.0 ± 5.7 cm; body mass 68.9 ± 6.7 kg) volunteered to perform incremental Tr, FTcod and FTcir running tests. In all three tests, players ran for 3 min at 8, 10, 12 and 14 km-™h-1 and were given a 1 min rest interval between subsequent stages. Blood lactate concentrations (La-) were measured at 1 min rest intervals and the heart rate (HR) responses of players were recorded during the tests. After a 5 min recovery period, the second part of the test started; players ran at 15 km-™h-1 with velocity increments of 1 km-™h-1 every 1 min until exhaustion. This part was performed to determine maximum HR, maximum La- and the players' final velocities. The results showed that players had significantly lower La- (F = 6.93, p = 0.07, ?2 = 0.46, 95%CI(TR-FTcir) =-1.91/-0.34, 95%CI(TR-FTcod) =-1.59/-0.05) and HR (F = 9.08, p = 0.02, ?2 = 0.53, 95%CI(TR-FTcir) =-6.98/-1.68, 95%CI(TR-FTcod) =-7.19/1.08) responses in the Tr test than in the FTcir and FTcod tests at 14 km-™h-1. It was also found that players completed the Tr test (F = 58.22, p = 0.00, ?2 = 0.87) at higher final running velocities than the FTcir (95%CI(TR-FTcir) = 1.67/2.78) and FTcod (95%CI(TR-FTcod) = 1.69/2.85) tests. In conclusion, when coaches or sports scientists plan to train at higher running velocities or according to the final velocity in the test, it is advisable to carry out testing in the circumstances under which training will be carried out (in the field or on a treadmill). © 2020 Yusuf Köklü, Utku Alemdaroglu, Ramazan Demirhan, Yunus Arslan, published by Sciendo 2020

The relative age effect in Turkish professional soccer

This study examined the Relative Age Effect (RAE) in Turkish professional soccer. The data on 3435 players (MAge = 25.25, SDAge = 1.16) across 127 professional teams from the four Turkish professional leagues were categorized into relative age quartiles (Q1= Jan-Mar; Q2= Apr-June; Q3= Jul-Sep; Q4= Oct-Dec). Birth data and registration dates were collected through the Turkish Football Federation’s official website. This data revealed a greater representation of players (approximately 62%) born between January and June, with statistically significant values for all professional leagues (X2(3)= 303.01; p< 0.01). Similarly, domestic players (X2(3)= 316.77; p< 0.01) and foreign players (X2(3)= 14.59; p< 0.01) born in the Q1 and Q2 zones were more likely to be members of Turkish professional leagues than those born in other zones. The findings of the present study also showed a strong RAE for all playing positions (40.37 ≤ X2(3) ≤ 143.5; p< 0.01). Based on the present data, players born in Q1 and Q2 zones, independently of the league level, position and nationality, seem to have advantages compared to those born in the rest of the year.Este estudio examinó el efecto de la edad relativa (RAE) en el fútbol profesional turco. Los datos sobre 3435 jugadores (MAge= 25.25, SDAge= 1.16) en 127 equipos profesionales de las cuatro ligas profesionales turcas se clasificaron en cuartiles de edad relativos (Q1 = enero-marzo; Q2 = abril-junio; Q3 = julio-septiembre; Q4 = Oct-Dic). La fecha de nacimiento y las fechas de registro se recopilaron a través del sitio web oficial de la Federación Turca de Fútbol. Estos datos revelaron una mayor representación de jugadores (aproximadamente 62%) nacidos entre enero y junio, con valores estadísticamente significativos para todas las ligas profesionales (X2(3)= 303.01; p <0.01). Del mismo modo, los jugadores nacionales (X2(3)= 316.77; p <0.01) y los jugadores extranjeros (X2(3)= 14.59; p <0.01) nacidos en las zonas Q1 y Q2 tenían más probabilidades de ser miembros de ligas profesionales turcas que aquellos nacido en otras zonas. Los resultados del presente estudio también mostraron un RAE fuerte para todas las posiciones de juego (40.37 ≤X2(3)≤143.5; p <0.01). Según los datos actuales, los jugadores nacidos en las zonas Q1 y Q2, independientemente del nivel de liga, posición y nacionalidad, parecen tener ventajas en comparación con los nacidos en el resto del año

The relationship between the Yo-Yo tests, anaerobic performance and aerobic performance in young soccer players

The purposes of this study were to determine the relationship between performance in the Yo-Yo intermittent recovery test level 1 (YIRT1), the Yo-Yo intermittent recovery test level 2 (YIRT2) and the Yo-Yo endurance test (continuous) (YET) with maximal oxygen uptake (VO2max) and Wingate anaerobic performance (WaNT) test results in young soccer players (age 15.00 ± 0.0 years, body height 176.3 ± 4.2 cm and body mass 68.1 ± 3.6 kg). An ergospirometry device was used during the treadmill test (TRT) to determine VO2max. At the end of the study, significant differences were found between the Yo-Yo tests and TRT in terms of HRmax (TRT = 195,92, YIRT1 = 197,83, YIRT2 = 198,5 YET = 198) (p > 0.05). While there were moderate correlations between VO2max and YIRT 1-2 performances (respectively, r = 0.56, r = 0.53), there was only a weak relationship between VO2max and YET performance (r = 0.43) (distance covered). There were also moderate significant negative correlations between performance in the YIRT2 and peak power measured in the WaNT (r = -0.55), although there were no significant correlations between performance in the three tests and average power. A moderate negative correlation was found between performance in the YIRT2 and Fatigue index (FI) (r = -0,66). In conclusion, the YIRT2 may be a more suitable field test for determining both aerobic and anaerobic performance in soccer players. © Editorial Committee of Journal of Human Kinetics

The effect of a six-week plyometric training performed with different set configurations on explosive performance: cluster vs. traditional set configurations

16th International Sport Sciences Congress -- OCT 31-NOV 03, 2018 -- Antalya, TURKEYBACKGROUND: The aim of this study was to compare the effects on jump, sprint and change of direction performance of a 6-week plyometric training performed using two different set configurations. METHODS: Twenty-five male soccer players (age 15.04 +/- 0.84 years; height 172.3 +/- 6.3 cm; weight 56.18 +/- 8.7 kg) from the same U16 team of a professional club voluntarily participated in the study. Countermovement jump (CMJ), squat jump (SJ), standing long jump (SLJ), zigzag agility test, 10 m and 20 m sprint performance tests were carried out in the week before and the week after the 6-week plyometric training period. After pretests, players were allocated to the cluster (CLS; N.=9), traditional (TRD; N.=8), or control groups (CON; N.=8) according to pretest results. RESULTS: The results of this study show that the CLS group had significantly greater improvements than the CON group in all tests except the zigzag test, while the TRD group showed significant improvement in sprint tests, SJ and SLJ compared to the CON group (p0.05). Also, both CLS and TRD groups had significantly better performance in post-test than in pre-tests in all cases except for the TRD group Zigzag test. CONCLUSIONS: We conclude that coaches may be advised to use the CLS set configuration since it is as effective as traditional methods, but poses lower risk in terms of performance decrement and injury due to fatigue and technical deformations.Pamukkale University Scientific Research Projects Coordination Unit [2018SABE027]This study was supported by the Pamukkale University Scientific Research Projects Coordination Unit through Project number 2018SABE027