Characteristics of anteroposterior curvatures of the spine in soccer and futsal players

AbstractPurpose. The aim of the study was to determine differences in anteroposterior spine curvatures between futsal players, soccer players, and non-training students. The results may contribute to the development of present-day knowledge of posturometry, and its implementation in training can help reduce the risk of body posture disorders in athletes. Methods. The examined group consisted of 48 athletes and 38 non-training college students. Body posture parameters were measured with the use of Posturometr-S. The normality of distribution was checked with the Shapiro-Wilk test, and the differences between the groups were measured with ANOVA and the Bonferroni post-hoc test. The level of statistical significance was set at p < 0.05. Results. The analysis of angle values revealed the widest and most similar measurements in the group of futsal players and soccer players. The analysis of variance proved statistically significant differences between the soccer players and futsal players (p = 0.003). The difference between the soccer players and non-training students was statistically significant. The highest γ angular value was measured in non-training students, followed by futsal players and soccer players. The statistical analysis revealed significant differences between the non-training students and futsal players, as well as non-training students and soccer players (p < 0.001). Conclusions. A complex assessment of athletes’ body posture is crucial in injury prevention. Training overloads may often lead to disorders of the organ of locomotion and affect the correct body posture in athletes. This, in turn, may result in pains and injuries.

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Intensity of Soccer Players’ Training Load in Small-Sided Games with Different Number of Players

Acta Facultatis Educationis Physicae Universitatis Comenianae ◽

10.2478/afepuc-2020-0005 ◽

2020 ◽

Vol 60 (1) ◽

pp. 55-74

Author(s):

Nikolas Nagy ◽

Miroslav Holienka ◽

Matej Babic ◽

Jakub Michálek ◽

Egon Kunzmann

Keyword(s):

Heart Rate ◽

Statistical Significance ◽

Soccer Players ◽

Special Software ◽

Systematic Training ◽

The Difference ◽

The One ◽

Post Hoc ◽

Experimental Group ◽

One Way Anova

SummaryThe main aim of this research was to compare differences in heart rate values (HR) of soccer players during small-sided games (SSGs) with different number of players. We assumed that the number of “neutral” player or players in small-sided games will significantly affect the intensity of SSGs and in this case the heart rate values of participating players. The experimental group consisted of older junior players from the FC DAC 1904 Dunajská Streda soccer club (n = 9). The heart rate values were evaluated on the basis of collected data, which we obtained using Polar sport testers and special software Polar Team2. In order to find out the statistical significance of the difference in heart rate was used the One-Way ANOVA and the Bonferroni post hoc test. The level of statistical significance we set at 5 %. We found out that with increasing number of “neutral” players’ the intensity of small-sided games gradually decreased. During SSG1 (3 vs. 3), we recorded the highest achieved average heart rate values of the monitored players, in average 171.33 ± 9.39 beats.min-1. This form of the SSGs was the most intense, but not statistically significant. Our recommendation is to employ SSGs in the systematic training process with different number of players, because we can adequately prepare the players for the match load itself. Attention need to be paid for the playing position requirements.

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Intensity of Soccer Players’ Training Load in Small-Sided Games with Various Content Focus

Acta Facultatis Educationis Physicae Universitatis Comenianae ◽

10.2478/afepuc-2019-0005 ◽

2019 ◽

Vol 59 (1) ◽

pp. 44-68

Author(s):

Nikolas Nagy ◽

Miroslav Holienka ◽

Matej Babic ◽

Jakub Michálek ◽

Egon Kunzmann

Keyword(s):

Statistical Significance ◽

Training Load ◽

Soccer Players ◽

Internal Reaction ◽

Game Activity ◽

Systematic Training ◽

The Difference ◽

The One ◽

The Individual ◽

Post Hoc

Summary The aim of this research was to make reference to the difference in heart rate values (HR) of soccer players in small-sided games (SSG) with various content focus. We assumed that the aim at the content in small-sided games would significantly affect the HR values of participating soccer players. The research group was comprised of players (n = 6) of the soccer club FK DAC 1904 Dunajská Streda (U15) at the age of 14 ± 0.7 years. The HR values were evaluated on the basis of collected data, which we obtained using sport testers and special software POLAR TEAM2. In order to find out the statistical significance of the difference in HR was used the One-Way ANOVA and the Bonferroni post hoc test. The level of statistical significance was set at 5 %. We found out that by the change of the small-sided game’s content focus, the internal reaction of players’ organism to training load was at different level. In the SSG3, with the emphasis on the improvement of individual’s final offensive game activity – shooting, was recorded the highest achieved HRavg value of the monitored players (181.83 ±7.11 beats.min−1). This form of the SSG was the most intense. However, there were no significant differences in HR values among the individual forms of the SSG. Our recommendation is to employ in the systematic training process small forms of small-sided games with various content focus, because by the means of it we can adequately prepare the players for the match load itself.

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Intensity Of Soccer Players´ Training Load In Small–Sided Games With Different Rule Modifications

Proceedings of the 12th International Conference on Kinanthropology ◽

10.5817/cz.muni.p210-9631-2020-11 ◽

2020 ◽

Author(s):

Nikolas Nagy ◽

Miroslav Holienka ◽

Matej Babic

Keyword(s):

Statistical Significance ◽

Training Load ◽

Soccer Players ◽

Internal Reaction ◽

Special Software ◽

Ball Contact ◽

Systematic Training ◽

The Difference ◽

The One ◽

Post Hoc

Purpose: The aim of this research was to make reference to the difference in heart rate values (HR) of soccer players in small-sided games (SSG) with different rule modifications. We assumed that the permitted number of ball touches in SSGs will significantly affect the internal load of participating soccer players’ organism. Methods: The experimental group consisted of older junior players (U19) from the FC DAC 1904 Dunajská Streda soccer club (n=6). The HR values were evaluated on the basis of collected data, which were obtained using sport testers and special software. In order to find out the statistical significance of the difference in HR the one-way ANOVAand the Bonferroni post hoc test was used. The level of statistical significance was set at 5%. Results: We found out that by the change of the SSG rules, the internal reaction of players´ organism to training load was at different level. In the SSG1, where players were permitted only one ball contact during the SSG, the highest achieved average HR value of the moni-tored players’ (160.08 9.27 beats.min-1) was recorded. This form of the SSGs was the most intense for the players’cardiovascular system. However, there were no significant differences in HR values among the different types of the SSGs. Conclusions: Our recommendation is to employ small forms of SSGs (3 vs. 3) with different rule modifications in the systematic training process, because by the means of it we can ad-equately prepare the players for the real competitive match demands.

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Fuel and lubricant consumption in felling the young oak-hornbeam stands

Glasnik Sumarskog fakulteta ◽

10.2298/gsf0286059b ◽

2002 ◽

pp. 59-66

Author(s):

Vojislav Bajic ◽

Milorad Danilovic

Keyword(s):

Statistical Analysis ◽

Analysis Of Variance ◽

Unit Area ◽

Function Form ◽

Tree Diameter ◽

Significant Difference ◽

The Difference ◽

Level Of Significance ◽

Average Consumption

Based on the elements of statistical analysis on the dependence of fuel and lubricant consumption on tree diameter, it was assessed that with the increase of tree diameter, the fuel and lubricant consumption in the young oak and hornbeam stands decreases significantly, both in clear felling and in thinning and that the function form Y=exp(a+b x X?1) is the best description of the correlation The consumption of fuel compared to lubricant consumption is almost double, which agrees with the results of the previous studies. Average consumption of fuel and lubricant is 17.43 mL x tree?1, on the plots 20.27 mL x tree?1, average consumption of lubricant per tree on skid roads is 9.4 mL x tree?1, on the plots 11 mL x tree?1. The higher consumption of fuel and lubricant on the plots with selective thinning is the consequence of the longer time needed for the conversion per tree, compared to that in clear felling The consumption of fuel per unit area on the skid roads (clear felling) is 22.9 L x ha?1, on the plots (selective thinning) 7.6 L x ha?1. The consumption of lubricant on the skid roads is 13.3 L x ha?1, on the plots 4.29 L x ha?1. The higher consumption of fuel and lubricant per unit area on the skid roads is due to the difference in the number of trees per unit area Based on the results of the analysis of variance, it was found out that between fuel and lubricant consumption in selective thinning and in felling the trees along tractor skid roads there is no statistically significant difference at the level of significance of 95%. So, for practical purposes, the unique norms of consumption can be established for the stands similar to those in which the study was performed.

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Combining Reliability Coefficients: Toward Reliability Generalization of the Conceptions of Mathematics Questionnaire

Psychological Reports ◽

10.2466/pr0.96.3.627-634 ◽

2005 ◽

Vol 96 (3) ◽

pp. 627-634 ◽

Cited By ~ 4

Author(s):

Andile Mji ◽

Haitham M. Alkhateeb

Keyword(s):

United States ◽

South Africa ◽

Analysis Of Variance ◽

The United States ◽

Reliability Generalization ◽

Variance Testing ◽

The Difference ◽

Post Hoc ◽

Strength Of Association ◽

Reliability Coefficients

The combined coefficient alpha from studies reporting the reliability of scores using the Conceptions of Mathematics Questionnaire were computed. Five studies comprising 898 participants were evaluated. A test of differences among the independent coefficients alpha was statistically significant (χ42 = 10.38, p = .04) for the Fragmented and (χ42 = 11.58, p = .02) for the Cohesive subscales. Post hoc comparisons showed the difference ( F129,299= 1.50, p = .003) was between Australia and Nigeria for the former and ( F155,157 = 1.54, p = .004) between South Africa and the United States for the latter alpha values. A one-way analysis of variance, testing for homogeneity among means within each subscale, indicated that these were homogeneous because the measure of the strength of association accounted for 10% of variability. As reliability coefficients were from homogeneous samples and alpha values were not different, the combined reliability is the best estimate of the population reliability for each subscale.

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Somatotype of Competitive Youth Soccer Players From Brazil

Journal of Human Kinetics ◽

10.2478/hukin-2014-0079 ◽

2014 ◽

Vol 42 (1) ◽

pp. 259-266 ◽

Cited By ~ 5

Author(s):

Yara Lucy Fidelix ◽

Juliane Berria ◽

Elisa Pinheiro Ferrari ◽

Jaelson Gonçalves Ortiz ◽

Tiago Cetolin ◽

...

Keyword(s):

Body Mass ◽

Analysis Of Variance ◽

Body Height ◽

Anthropometric Measurements ◽

Soccer Players ◽

Youth Soccer ◽

Youth Athletes ◽

Professional Soccer ◽

Post Hoc

Abstract The aim of this study was to identify the morphological configuration of youth athletes from professional soccer clubs and to verify their differences according to the tactical position on the field. Overall, 67 male players aged 15 to 17 years were evaluated. The examined anthropometric measurements included body mass, body height, skinfolds (triceps, subscapular, supraspinal and medial calf), girths (flexed and tensed arm and calf) and breadths (humerus and femur). For statistical purposes, analysis of variance and post hoc Bonferroni and Kruskal-Wallis tests were used. We concluded that goalkeepers were heavier and taller than center backs (p = 0.015 and p = 0.001), midfielders (p = 0.005 and p <0.001) and center forward players (p = 0.024 and p <0.001). The average somatotype for defense, forward and goalkeeper positions was a balanced mesomorph. Midfield players showed ectomorphic-mesomorph characteristics. It was concluded that goalkeepers were characterized as being taller and heavier and that somatotype features of athletes were similar between positions, except for midfield players

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Statistical analysis of the influence of print run on surface roughness of digital flexo printing plates’ solid tone areas

Proceedings - The Tenth International Symposium GRID 2020 ◽

10.24867/grid-2020-p30 ◽

2020 ◽

Author(s):

Sandra Dedijer ◽

◽

Magdolna Pál ◽

Ivana Tomić ◽

Stefan Poljak ◽

...

Keyword(s):

Surface Roughness ◽

Statistical Analysis ◽

Statistical Evaluation ◽

Statistical Significance ◽

Test Method ◽

Roughness Parameters ◽

Printing Plate ◽

Significance Level ◽

Surface Roughness Parameters ◽

The Difference

In this study we have aimed to present statistical evaluation of changes in the surface roughness of the solid tone areas on CtP flexo printing plate in dependence of print run. Changes in flexo plate surface roughness is influenced by the plate-making process, printing pressure and speed, the interaction with the ink and printing substrate and by the wear of the printing plate due to long print-runs. Thus, the aim of this research was to evaluate the changes in the amplitude surface roughness parameters (Ra, Rp, Rv and Rz), between the printing plates used for different print runs. In the experiment, we have employed three sets of CtP flexo printing plates, for three colors-cyan, magenta and blue. The first set was not used for printing, the second was used to print 7 rolls of substrate and the third is used to print 11 rolls of printing substrate. The amplitude surface roughness parameters were compared by applying independentsamples t-test method using the software SPSS (Statistical Package for Social Science) with a 0.05 significance level. Statistical analysis revealed that the difference between the amplitude surface roughness parameters measured on CtP flexo printing plates are significant with a 95% confidence level, whereas the statistical significance pointed out that with the longer print runs, the difference will be strongly expressed.

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Effect of mating method, sex and birth type on growth of lambs

Biotechnology in Animal Husbandry ◽

10.2298/bah1302277i ◽

2013 ◽

Vol 29 (2) ◽

pp. 277-286 ◽

Cited By ~ 1

Author(s):

Zoran Ilic ◽

A. Jevtic-Vukmirovic ◽

M.P. Petrovic ◽

V. Caro-Petrovic ◽

B. Milosevic ◽

...

Keyword(s):

Body Weight ◽

Statistical Analysis ◽

Statistical Significance ◽

Reproductive Traits ◽

The Body ◽

Estrus Synchronization ◽

Body Weights ◽

The Difference ◽

Mating Method ◽

Birth Type

Estrus synchronization methods was use to control the reproductive traits of sheep, as well as bringing more females at the same stage of estrus and ovulation. According to the points mentioned above, the aim of the present study was to investigate and compare mating method and influence of fixed factors on birth and weaning weight of lambs. Statistical analysis showed that exist difference in the body weights between genotypes of lambs. In the first group, the difference in weight of lambs at birth, regardless of mating method was not significant (P> 0.05), while in the second group, the difference was slightly significant (P <0.05). As for the birth type, sex and within the same genotype, there was a statistical significance (P <0.05) between singles obtained naturally, between the triplets obtained naturally and between triplets received hormonal method. All the differences between body weight at 30 days (mating method, sex and birth type under the same genotype) were statistically significant (P <0.05).The determined differences in the body weights at 60 days (sex, mating method and type of birth under the same genotype) were statistically significant (P <0.05). The results showed that the differences (mating method, sex and type of birth under the same genotype) were statistically significant (P <0.05), except in between body weight at 90 days in twins among two genotypes obtained by natural method, which were not statistically significant (P> 0.05).

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Anatomic Aspects of Inguinal Lymph Nodes Applied to Lymphadenectomy in Penile Cancer

Advances in Urology ◽

10.1155/2011/952532 ◽

2011 ◽

Vol 2011 ◽

pp. 1-4 ◽

Cited By ~ 7

Author(s):

João Paulo Martins de Carvalho ◽

Bruno F. Patrício ◽

Jorge Medeiros ◽

Francisco J. B. Sampaio ◽

Luciano A. Favorito

Keyword(s):

Statistical Analysis ◽

Lymph Nodes ◽

Analysis Of Variance ◽

Penile Cancer ◽

Statistical Significance ◽

Anatomical Location ◽

Anatomical Landmarks ◽

Inguinal Lymph Nodes ◽

Inguinal Lymphadenectomy ◽

Node Distribution

Objectives. To provide a better understanding of the distribution of inguinal nodes in order to prevent the complications of unnecessary and extended dissections in penile cancer.Methods. The bilateral inguinal regions of 19 male cadavers were dissected. Nodal distribution was noted and quantified based on anatomical location. The superficial nodes were subdivided into quarters as follows: superomedial, superolateral, inferomedial, and inferolateral. Statistical analysis was performed comparing node distribution between quarters using one-way analysis of variance (ANOVA), and the unpairedT-test was used between superficial and deep nodes.Results. Superficial nodes were found in all inguinal regions studied (mean = 13.60), and their distribution was more prominent in the superomedial quarter (mean = 3.94) and less in the inferolateral quarter (mean = 2.73). There was statistical significance between quarters when comparing the upper group with the lower one (P=0.02). Nodes were widely distributed in the superficial region compared with deep lymph nodes (mean = 13.60 versus 1.71,P<0.001).Conclusions. A great number of inguinal lymph nodes are distributed near the classical anatomical landmarks for inguinal lymphadenectomy, more prominent in upper quadrants.

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