Relationship Between Body Composition and Muscle Strength in Early Adolescence Goal-Ball players with Visual Impairments

adolescence goal-ball players with visual impairments. Methods: Thirteen early adolescence goal-ball players with visual impairments that are goal-ball players participated (mean age 13.54±1.27 years, height 155.23±10.86 cm and, body weight 48.23±10.43 kg). Body composition measurements that were assessed included body mass index, body fat percentage and skinfold (abdominal, subscapular, triceps and suprailiac). Participants were also assessed on several strength measurements including standing long jump, the right hand grip, left hand grip, vertical jump, leg strength, sit-up and push up. Results: Positive correlations between ages and height with the standing long jump, the right hand grip, the left hand grip, vertical jump were found in the early adolescence goal-ball players with visual impairments (P\u3c0.05). Negative correlations were found between body mass index and body fat percentage with standing long jump, vertical jump, sit-up (P\u3c0.05) and among skinfold (subscapular, triceps and suprailiac) with standing long jump, the right hand grip, left hand grip, vertical jump, push up (P\u3c0.05) and between abdominal skinfold with standing long jump, the right hand grip, left hand grip, vertical jump, sit-up, push up (P\u3c0.05). On the other hand, there was not a correlation between body weight with muscle strength and leg strength with body composition (P\u3e0.05). Conclusins: In an assessment of body composition and muscle strength, it was found that body weight did not significantly impact muscle strength in early adolescence goal-ball players with visual impairments. This finding could be of importance for understanding the role of muscle strength and body composition in routine training of goal-ball players

The Effects of 8-Week Speed Training Program on the Acceleration Ability and Maximum Speed Running at 11 Years Athletes

The aim of this study was to examine the effects of an 8-week speed training program on the acceleration ability and maximum speed at 11 years athletes. A total of 30 healthy female athletes volunteered to participate in this study. They were divided randomly into 1 of 2 groups: Experimental group (EG; N=15) and control group (CG; N=15). The mean (SD) age was 11.20±0.32 years, height was 1.44±0.08 m, and weight was 35.20±2.02 kg for the experimental group; the mean (SD) age was 11.40±0.39 years, height was 1.45±0.05 m, and weight was 36.06±1.15 kg for the control group. A speed training program was applied to the subjects 3 days a week for 8 weeks. Testing was conducted before and after 8 weeks of training. Acceleration and maximum speed was evaluated for 15-m and 30-m, respectively, involving sprinting 15 m and 30 m as fast as possible from a stationary start position that was ascertained during a 50-m. Electronic timekeeping was conducted by the facility – Brower Timing System – made in Utah, USA., consisting of 4 components. Paired t-tests detected significant differences in pre- and posttests for clearance time of 5 m during 50 m in the experimental and control groups (p0.05). On the other hand, we did find significant difference between pretest and posttest values of other clearance times of consecutively each 5m during 50 m for the experimental and control groups (p<0.05). Also, this study observed that athletes reached maximum speed in 30 m. In conclusion, in speed training, it is important to improve as many fast motor units as possible, which are more suitable for fast movements. The gains in sprint performance occurred in the initial acceleration and speed-maintenance phases. The ability to accelerate quickly from a stationary position will provide a competitive advantage for athletes

The Examination of the Heart Rate Recovery after Anaerobic Running in Soccer Players

The purpose of this study was to examine the heart rate recovery depending on anaerobic running. A total of 23 professional soccer players who were player of Turkish Super Leagues, were examined. Anaerobic Run test was applied to the soccer players and their heart rates were recorded before running, just after running, in 3rd and 6th minutes of recovery period. Any statistical differences were not found between the heart rates before run and in 6th minute after run (p>0.05). On the other hand, there was a statistical difference between the heart rates before run, after run and in 3rd minute after run; the heart rates after run and before run; the heart rates in 3rd and 6th minutes of recovery (p0.05). In conclusion, even if the increase of heart rate occurring after anaerobic run doesn’t completely return to normal in 3rd minute of recovery, it will supply the athlete with a suitable condition for the second loading with regard to efficient rest. It is thought that a rest over 3 minutes should be given for athletes to make the heart rate after anaerobic run return to normal

The Effects of 8-Week Speed Training Program on the Acceleration Ability and Maximum Speed Running at 11 Years Athletes

The aim of this study was to examine the effects of an 8-week speed training program on the acceleration ability and maximum speed at 11 years athletes. A total of 30 healthy female athletes volunteered to participate in this study. They were divided randomly into 1 of 2 groups: Experimental group (EG; N=15) and control group (CG; N=15). The mean (SD) age was 11.20±0.32 years, height was 1.44±0.08 m, and weight was 35.20±2.02 kg for the experimental group; the mean (SD) age was 11.40±0.39 years, height was 1.45±0.05 m, and weight was 36.06±1.15 kg for the control group. A speed training program was applied to the subjects 3 days a week for 8 weeks. Testing was conducted before and after 8 weeks of training. Acceleration and maximum speed was evaluated for 15-m and 30-m, respectively, involving sprinting 15 m and 30 m as fast as possible from a stationary start position that was ascertained during a 50-m. Electronic timekeeping was conducted by the facility – Brower Timing System – made in Utah, USA., consisting of 4 components. Paired t-tests detected significant differences in pre- and posttests for clearance time of 5 m during 50 m in the experimental and control groups (p0.05). On the other hand, we did find significant difference between pretest and posttest values of other clearance times of consecutively each 5m during 50 m for the experimental and control groups (p<0.05). Also, this study observed that athletes reached maximum speed in 30 m. In conclusion, in speed training, it is important to improve as many fast motor units as possible, which are more suitable for fast movements. The gains in sprint performance occurred in the initial acceleration and speed-maintenance phases. The ability to accelerate quickly from a stationary position will provide a competitive advantage for athletes

Neonatal tetanus in Turkey; what has changed in the last decade?

dikici, bunyamin/0000-0001-7572-6525WOS: 000259222800001PubMed: 18713452Background: Neonatal tetanus (NT) is still considered as one of the major causes of neonatal death in many developing countries. The aim of the present study was to assess the characteristics of sixty-seven infants with the diagnosis of neonatal tetanus followed-up in the Pediatric Infectious Diseases Ward of Dicle University Hospital, Diyarbakir, between 1991 and 2006, and to draw attention to factors that may contribute (or may have contributed) to the elimination of the disease in Diyarbakir. Methods: The data of sixty-seven infants whose epidemiological and clinical findings were compatible with neonatal tetanus were reviewed. Patients were stratified into two groups according to whether they survived or not to assess the effect of certain factors in the prognosis. Factors having a contribution to the higher rate of tetanus among newborn infants were discussed. Results: A total of 55 cases of NT had been hospitalized between 1991 and 1996 whereas only 12 patients admitted in the last decade. All of the infants had been delivered at home by untrained traditional birth attendants (TBA), and none of the mothers had been immunized with tetanus toxoid during her pregnancy. Twenty-eight (41.8%) of the infants died during their follow-up. Lower birth weight, younger age at onset of symptoms and at the time admission, the presence of opisthotonus, risus sardonicus and were associated with a higher mortality rate. Conclusion: Although the number of neonatal tetanus cases admitted to our clinic in recent years is lower than in the last decade efforts including appropriate health education of the masses, ensurement of access to antenatal sevices and increasing the rate of tetanus immunization among mothers still should be made in our region to achieve the goal of neonatal tetanus elimination

Speeding up Curve25519 using Toeplitz Matrix-vector Multiplication

This paper proposes a new multiplication algorithm over F-2(255)-19 where the de-facto standard Curve25519 [2] algorithm is based on. Our algorithm for the underlying finite field multiplication exploits the Toeplitz matrix-vector multiplication and achieves salient results. We have used a new radix representation that is infeasible when used with schoolbook multiplication techniques but has notable advantages when used with Toeplitz matrix-vector multiplication methods. We present the new algorithm and discuss the comparison and implementation details. In addition, we evaluate the delay complexity of four-core almost embarrassingly parallel implementation of our algorithm when computations are performed using multi-core systems

TMVP-Friendly Primes for Efficient Elliptic Curve Cryptography

© 2020 IEEE.The need for faster and practical cryptography is a research topic for decades. In case of elliptic curve cryptography, which was proposed by Koblitz and Miller in 1985 as a more efficient alternative to RSA, the applications in real life started after 2000s. Today, most of the popular applications and protocols like Whatsapp, Signal, iOS, Android, TLS, SSH, Bitcoin etc. make use of Elliptic curve cryptography. One of the important factor for high performance elliptic curve cryptography is the finite field multiplication. In this paper, we first describe how to choose proper prime fields that makes use of Topelitz-matrices to get faster field multiplication, then we give parameter choice details to select prime fields that supports Toeplitz-matrix vector product operations. Then, we introduce the safe curve selection rationale and discuss about security. We propose new curves, discuss implementation and benchmark results and conclude our work

A Practice for Performance Determination of Small Ruminant Farms: The Case Study of Izmir Province in Turkey

WOS: 000453166600002The aim of this study was to evaluate the situation of farm structures and small ruminant production activities in 158 semi-intensive farms as of 2013 by a developed performance approach. Firstly, "structural performance" defining the sufficiency of the barns was calculated in sample farms according to predicted "building technique" and" design-location" indicators. "Animal husbandry performance" defining the sufficiency level in small ruminant production activities carried out, was determined based on predicted "feeding" and "rearing - milking" indicators. In addition, the overall farm performance of the sample farms was calculated according to these performances. In these calculations, total 35 major variables (technical specifications / scientific basis) were taken into consideration. Then, the determined performance levels were evaluated according to the created four different performance classes (very good, good, fair and poor). Consequently, it was understood that structural (0,37) and overall (0,42) performance values of sample farms take place in "fair" class, but animal husbandry (0,46) performance has proved to be much closer to the "good" class. Performance results showed that the requirements for improvements in small ruminant farms in the research area, especially in terms of construction techniques and designing of the barns, and also for small ruminant practices related to rearing and milking

Balance Performance and Recovery After Exercise With Water Intake, Sport Drink Intake and No Fluid

The objective of the present study was to determine the effects of exercise with water intake, sport drink intake and no fluid on balance performance and recovery. Seventeen physically active men (age, 22.29 ± 1.61 years; height, 176.24 ± 5.18 cm; weight, 69.47 ± 9.20 kg) volunteered to take part in this study. The Biodex Balance System was used to evaluate balance performance and Overall Stability Index (OSI) scores were used to assess balance performance. The exercise protocol consisted of a 1-hour exercise session at 75% and 85% of maximal heart rate. The recovery period was 20 minutes of rest without fluid intake. In all experiment conditions, balance tests were applied three times as pretest, posttest and recovery. In each one of the three experimental conditions, balance tests were consecutively performed with eyes open and eyes closed. All the measurements and exercise protocols were performed in the morning (between 9 AM and 12 PM), in a specially designed and equipped room, with room temperature at 21–24°C. Repeated-measures ANOVA was used to examine all the conditions. OSI post-exercise was significantly higher than pre-exercise (p < 0.01) and recovery (p < 0.05) for exercise with no fluid and eyes open. There was a non-significant difference in OSI between pre-exercise and recovery. No significant differences in OSI for exercise with sport drink intake and water intake were observed among pre-exercise, post-exercise and recovery. The results of this study show that balance performance decreases after prolonged exercise without fluid intake, and that fluid ingested during sport activities could prevent the decrease in balance performance

Relationships between Balance and Functional Performance in Football Players

WOS: 000286953800003The aim of the present study was to examine the relationships between balance performance as measured by the Balance Error Scoring System and functional performance in football players. Twenty-two football players from University League Final Group in Turkey (age 23.05 +/- 1.65 years, height 176.58 +/- 6.99 cm, weight 68.80 +/- 7.00 kg) volunteered to participate in the study. Postural performance was measured by the Balance Error Scoring System (BESS). For functional performance, standing broad jump, triple-hop, vertical jump, four-line sprint and three-corner run test were used. There was not a statistically significant relationship among the all BESS scores and triple-hop in non-dominant leg, power, four-line sprint, and three-corner run performances (p<0.05). Triple-hop in dominant leg performance correlated with foam surface, tandem leg and total BESS score (r = 0.755, p < 0.01; r = 0.664, p < 0.05; r = 0.713, p< 0.01, respectively). Standing broad jump performance correlated with foam surface, tandem leg and total BESS score (r = 0.737, p < 0.01; r = 0.692, p < 0.05; r = 0.617, p< 0.05, respectively). There was a statistically significant relationship among the single leg BESS score and vertical jumping performance (r = -0.596, p<0.05). In conclusion, the activities requiring explosive power may reflect the ability of managing a balanced posture but the activities in which time period is longer may not