scholarly journals MORPHOLOGICAL CHARACTERISTICS ASTHE PREDICTORS OF SITUATIONAL SUCCESSFUL IN THE WATER POLO

2019 ◽  
Vol 13 (2) ◽  
Author(s):  
Boris Janjić ◽  
Novica Gardašević ◽  
Milomir Trivun
Keyword(s):  
Vertical Jump ◽  
Morphological Characteristics ◽  
The Body ◽  
Fatty Tissue ◽  
Anthropometric Measures ◽  
Water Polo ◽  
Subcutaneous Fatty Tissue ◽  
Motor Tests ◽  
The Impact ◽  
Criterion Variables

At the sample of 39 water polo players, aged 12 years (± 6 months), the research was conducted todetermine the impact of morphological characteristics on the situational performance in the waterpolo. In this paper, a set of 12 anthropometric measures as a predictor set of variables was applied,while the criterion variables were situational motor tests; swimming speed at 25 meters with andwithout a ball, vertical jump from the water and side swimming 8 times 2.5 meters. On the basis of theobtained results it was concluded that the morphological characteristics significantly influenced theperformance of situational motoric tasks in water polo, depending on the test from 39% to as much as71%. The most significant applied variables from the morphological space of water polo players werevariables; the volume of the thorax, the height of the body, the width of the hand and the foot with apositive effect, while the weight of the body and the subcutaneous fatty tissue were aggravating factorsfor the performance of situational motoric tasks for the 12-year-old water polo players.

scholarly journals REGRESSION ALGORITHMS IN ASSESSING THE IMPACT OF MORPHOLOGICAL AND MOTOR CHARACTERISTICS ON 60-M SPRINT

2019 ◽  
pp. 221
Author(s):  
Milica Filipović ◽  
Veroljub Stanković ◽  
Milan Čoh ◽  
Biljana Vitošević ◽  
Dragana Radosavljević
Keyword(s):  
Motor Skills ◽  
High Reliability ◽  
Statistical Significance ◽  
Vertical Jump ◽  
Age Groups ◽  
Morphological Characteristics ◽  
Sprint Performance ◽  
Explosive Power ◽  
Upper And Lower Extremities ◽  
The Impact

The aim of the present study was to identify the relationship between morphological parameters and motor skills that are important for sprint performance in children aged 8 to 16 years divided into four age groups (U10, U12, U14, U16) in both genders. The sample consisted of two hundred eighty one participant who trained sprinting in various athletic clubs. A prediction set of twenty-five variables for assessing morphological characteristics and motor skills was applied, and the criterion variable was a sprint at 60m. Using multiple correlation, it has been established that a large number of morphological characteristics are statistically significant positive correlation with the sprint, especially the longitudinal variables, while the variables of skinfolds showed a low negative statistical significance in relation to the given criterion. In the field of motor skills, the highest number of positive statistically significant correlations were found in the tests of explosive power of the upper and lower extremities, agility test and horizontal and vertical jump tests. In order to determine which morphological features and motor skills should be applied in sprint running training, we tested related attributes using different algorithms for data mining (LR, M5, KNN, SVM, MLP, RBF). The results suggests that the predictors that we use can continue to be applied with high reliability in assessing sprint performance, but also in the monitoring of the training process in order to profile the better sprint achievements.

scholarly journals Positional differences in anthropometric characteristics of the Croatian U18 female field handball players

Kinesiology ◽  
2020 ◽  
Vol 52 (1) ◽  
pp. 124-133
Author(s):  
Dinko Vuleta ◽  
Lidija Bojić-Ćaćić ◽  
Dragan Milanović ◽  
Marjeta Mišigoj Duraković ◽  
Dražan Dizdar
Keyword(s):  
Dietary Habits ◽  
Selection Process ◽  
Fatty Tissue ◽  
Fat Percentage ◽  
Anthropometric Measures ◽  
Anthropometric Characteristics ◽  
Subcutaneous Fatty Tissue ◽  
Training Programmes ◽  
Almost All ◽  
Game Performance

The aim of the study was to analyze positional differences in anthropometric characteristics of 48 Croatian selected female handball juniors (average age 18.43 years) who played in three positions: backs (B; n=19), wings (W; n=7) and pivots (P; n=6). Twenty-four anthropometric measures, defining the four latent morphological dimensions, were used. Globally, significant differences were revealed by means of ANOVA in 11 morphological measures (7 at p≤.01 and 4 at p≤.05) between the three groups of female juniors with no significant differences in longitudinal dimensions. Only one significant positional difference was found between pivots and backs (in the lower leg skinfold in favour of pivots suggesting a higher body fat percentage. Between wings and pivots no significant differences were found in longitudinal body dimensions; however, the measures of skeletal transversality, voluminosity and partially of fatty tissue (two variables) corroborated the fundamental difference between these two positions: pivotsʼ body built was more robust. No significant differences were found in longitudinal and almost all transversal measures between backs and wings; however, the differences in body voluminosity (all in favour of backs) were probably due to the selection process. In the juniorsʼ somatotype (3.72‒3.49‒2.32), endomorph and mesomorph components were predominant over the ectomorph component, in which the lowest values were obtained from the players in all the three positions. It is of outmost importance that handball practitioners should work on the reduction of players’ percentage of subcutaneous fatty tissue and on the enhancement of the portion of active muscle mass in their body composition by the implementation of quality sports training programmes and changes in dietary habits if better game performance and sports achievements of the Croatian junior female handball players are expected.

IN VITRO STUDIES ON ENZYMATIC CLEAVAGE OF STEROID ESTERS IN THE FEMALE ORGANISM

1976 ◽  
Vol 81 (4) ◽  
pp. 839-853 ◽  
Author(s):  
Otto Bellmann ◽  
Hans-Jürgen Duhme ◽  
Erich Gerhards
Keyword(s):  
Water Solubility ◽  
The Body ◽  
Short Chain ◽  
Human Myometrium ◽  
Vaginal Mucosa ◽  
Fatty Tissue ◽  
Enzymatic Cleavage ◽  
Cleavage Rate ◽  
Subcutaneous Fatty Tissue ◽  
Long Chain

ABSTRACT The decreasing water-solubility of steroid esters concomitant with increasing chain length of monocarboxylic acids provides a prolonged therapeutic effect of the steroid. Whether a slow release of the steroid from an oily depot in the muscle or a secondary storage of the ester in the body fat ("deep compartment") are responsible for this prolonged action, is open to discussion. The aim of this study was to investigate the steroid ester cleaving enzyme activity of human subcutaneous fatty tissue. The following steroid esters were investigated: Testosterone acetate and oenanthate, metenolone acetate and oenanthate, norethisterone acetate and oenanthate, dehydroepiandrosterone acetate and oenanthate, fluocortolone acetate and caproate. In the 10 000 x g supernatant phase of the female subcutaneous fatty tissue the rate of enzymatic cleavage of the long-chain oenanthates was considerably greater than that of the corresponding short-chain steroid esters. The nature and position of the ester group in the steroid molecule exhibited a marked effect on the rate of enzymatic cleavage of steroid esters. The cleavage rate of long- and short-chain steroid esters in human myometrium and endometrium resembled that in the fatty tissue. On the other hand, the gastric mucosa, rectus musculature, placenta and vaginal mucosa split the short-chain steroid esters more rapidly than the long-chain esters. The marked differences in the relation of the cleavage rate of long- and short-chain steroid esters in the various tissues allow the assumption that long- and short-chain steroid esters are cleaved by different enzymes.

scholarly journals Influence of Basic-Motor Abilities on Efficiency of Realization of Specific Motor Tasks In Swimming

2020 ◽  
Vol 19 (1) ◽  
Author(s):  
Osmo Bajrić ◽  
Branimir Mikić ◽  
Senad Bajrić ◽  
Edin Mirvić ◽  
Slobodan Goranović
Keyword(s):  
Motor Skills ◽  
Statistical Significance ◽  
Plantar Flexion ◽  
Motor Tasks ◽  
Motor Abilities ◽  
Younger Age ◽  
Long Jump ◽  
Motor Tests ◽  
The Impact ◽  
Criterion Variables

The research was conducted on a sample of 70 respondents-swimmers aged 13-15 years of swimming clubs from Sarajevo Canton/Federation of BiH, with the aim of determining the significance and magnitude of the impact of selected basic motor skills on the implementation of specific motor tasks in swimming (navigability in place, sliding length with reflection from water, start from starting block, parallel). The study used 10 variables to assess basic motor skills, which were the input or predictor set of variables, and three variables to assess the efficiency of specific motor tasks in swimming as a criterion, each variable from the battery of specific motor tasks was considered as a criterion on the predictor set of basic-motor variables. Three mini regression analyzes were applied to determine the statistical significance and relative influence of basic motor skills on the realization of specific motor tasks in swimming (buoyancy in place, length of sliding with reflection from water, start from the starting block, parallel). The results of regression analyzes indicate that the greatest influence on the overall efficiency in the implementation of specific motor tests in swimming, looking at all criterion variables together, from the set of basic-motor variables, as a predictor set, show the following variables: stick twist-MFLISK MFLPRK, plantar flexion-MFLPL, long jump from place-MFESDM, agility on the ground-MKOKNT and shelter in lying-MRCZTL. The results obtained in this research can be useful for teachers and swimming trainers who work with younger age categories for the purpose of better programming of training work and selection of training content.

scholarly journals The impact of sleep quality and duration on leptin, appetite, and obesity indices in adults

2020 ◽  
Vol 29 (4) ◽  
pp. 417-21
Author(s):  
Harry Freitag Luglio Muhammad ◽  
Satwika Arya Pratama ◽  
Dian Caturini Sulistyoningrum ◽  
Maya Nurfitriani Hartono ◽  
Emy Huriyati ◽  
...  
Keyword(s):  
Sleep Quality ◽  
Dietary Intake ◽  
Sleep Duration ◽  
The Body ◽  
Enzyme Linked Immunosorbent Assay ◽  
Poor Sleep ◽  
Anthropometric Measures ◽  
Cross Sectional ◽  
Obesity Indices ◽  
The Impact

BACKGROUND Poor sleep duration and quality were previously reported to increase the risk of obesity. This study was aimed to evaluate the impact of sleep quality and duration on leptin, appetite, and adiposity in Indonesian adults. METHODS This cross-sectional study recruited adults in Yogyakarta, Indonesia, in 2016. Sleep quality was assessed using the Pittsburgh sleep quality index, appetite was evaluated using the community nutrition appetite questionnaire, and dietary intake was assessed by interviews using the semi-quantitative food frequency questionnaire. Sleep duration was also asked. Obesity indices were measured using the body mass index (BMI), waist-hip circumference, and percentage of body fat. Leptin was analyzed using the enzyme-linked immunosorbent assay. A Spearman analysis was done to evaluate the correlation between sleep quality, sleep duration, anthropometric measures, dietary intake, appetite, and leptin. RESULTS 244 adults participated in this study. This study showed that lower sleep quality and duration was significantly correlated with higher body weight (r = 0.129, p = 0.043 and r = −0.228, p<0.001), BMI (r = 0.176, p = 0.006 and r = −0.202, p = 0.001), and waist circumference (r = 0.179, p = 0.005 and r = −0.254, p<0.001). There was a correlation between poor sleep quality and higher leptin concentration (r = 0.186, p = 0.004). Sleep quality and duration were not associated with appetite (r = 0.109, p = 0.109 and r = −0.043, p = 0.500). CONCLUSIONS This study found that lower sleep quality was correlated with higher BMI, higher leptin concentration, but not appetite.

scholarly journals The impact of systematized physical activity on parameters of health-related physical fitness in schoolchildren aged 8 to 11 years

2019 ◽  
Vol 24 ◽  
pp. 1-7
Author(s):  
Marcelo José Resende Gonçalves ◽  
Camila Ramos Santos ◽  
Carla Cristiane Silva
Keyword(s):  
Physical Activity ◽  
Physical Education ◽  
Physical Fitness ◽  
Children And Adolescents ◽  
Body Mass ◽  
Adult Life ◽  
The Body ◽  
Childhood And Adolescence ◽  
Motor Tests ◽  
The Impact

It is recommended that proper incorporation of healthy habits of physical activity in childhood and adolescence has a positive impact on a physically active lifestyle in adult life. Thus, the present study aimed to verify the effects of four weeks of systematized physical activity in addition to the classes of Physical Education on parameters of physical fitness related to health of children and adolescents. The sample was selected by convenience and composed of 73 children and adolescents aged 8-11 years. The subjects were subdivided into 2 groups; one group of children exclusively attending Physical Education classes (PEC); and another group that performed Systematized Physical Activity (SPA). The following tests were applied; the abdominal test to assess strength and muscle resistance; the Paccer to verify cardiorespiratory fitness; and the adapted sit-and-reach to evaluate flexibility. In addition, the Body Mass Index (BMI) and relative fat (%F) were assessed. Sample characterization data and motor tests are presented as median and interquartile range. The ANOVA test of repeated measurements was used to verify the effect of the moments. The results pre training did not demonstrate differences between groups in measures of body mass, stature, BMI, or motor tests. The effects of physical training were observed in all motor tests in favor of the SPA, while the PEC did not demonstrate significant differences between moments. In conclusion, four weeks of additional systematized physical activity promoted a significant positive effect in motor tests applied with a focus on heath.

scholarly journals ULTRASTRUCTURE AND HEPATOCYTE KARYOCYTOMETRY OF QUAILS

2019 ◽  
Vol 51 (3) ◽  
pp. 36-41
Author(s):  
G.Z. Bronnikova ◽  
◽  
E.N. Skovorodin ◽  
Keyword(s):  
Microscopic Examination ◽  
Morphological Characteristics ◽  
Electron Microscopic Examination ◽  
Cell Ultrastructure ◽  
The Body ◽  
Qualitative Description ◽  
Synthetic Activity ◽  
Electron Microscopic ◽  
Pharmacological Agents ◽  
The Impact

The paper studies the functional morphology of quail hepatocytes. To conduct the research there was an electron-microscopic examination of quail liver. The structure of the nucleus and nucleolus were quantitatively assessed using objective methods of karyocytometry. Quail hepatocytes are found to have high synthetic activity. Hepatocyte karyocytometry enables to reveal hidden morphological characteristics of the cell ultrastructure being hardly detected under normal qualitative description of electron-diffraction photos. Quail hepatocyte karyocytometry indicates a pronounced structural and functional heterogeneity of hepatocytes. Therefore, electron-microscopic examination using karyocytometric methods is a highly informative method for assessing the morphological and functional state of the body and it should be used in assessing the impact of pharmacological agents on the body.

scholarly journals THE IMPACT OF CERTAIN ANTHROPOMETRIC DIMENSIONS ON THE REALIZATION OF MOTOR ABILITIES IN KARATE ATHLETES

2021 ◽  
Vol 18 (1) ◽  
pp. 25-31
Author(s):  
Shkelzen Shalja ◽  
Visar Ganiu ◽  
Zorica Stankovska ◽  
Žarko Kostovski
Keyword(s):  
Regression Analysis ◽  
Linear Regression Analysis ◽  
National Team ◽  
Motor Abilities ◽  
Criterion System ◽  
Explosive Force ◽  
Motor Tests ◽  
The Impact ◽  
Criterion Variables ◽  
Karate Athletes

The research was conducted on 37 senior karate athletes’ seniors, males, at the age of 18 to 30, competitors of international rank. They are potential members of the Kosovo national team. Two test batteries were used on the sample of the respondents: 5 anthropometric variables as a predictor system and 13 basic motor variables as a criterion system. From previous studies it can be concluded that the longitudinal dimensionality of the skeleton and motor abilities, in particular, speed, explosive force, as well as coordination of movement play an important role in karate sport, especially for the competitors who participate in the discipline kumite. The research was conducted in order to determine the impact of the predictor system of variables on the success of the realization of the criterion variables. By applying Linear Regression Analysis, the connection of the predictors with certain motor tests was determined, i.e. their prediction was determined. Key words: Karate, Anthropometric, Motor.

Fatty Tissue Visualization 18 Hours after 133Xe Lung Ventilation Study

1993 ◽  
Vol 32 (05) ◽  
pp. 264-265 ◽  
Author(s):  
A. M. Bekier
Keyword(s):  
Healthy Volunteer ◽  
Lung Ventilation ◽  
The Body ◽  
Whole Body ◽  
Fatty Tissue ◽  
Whole Body Scan ◽  
Body Scan ◽  
Subcutaneous Fatty Tissue ◽  
The Individual ◽  
Radioactive Gases

SummaryIn order to check a new rebreathing unit for ventilation investigations of the lungs with radioactive gases, a 133Xe lung ventilation study was performed in a 56-year old healthy volunteer. The contamination check on the following day triggered a radiation warning caused by the retained xenon activity in the body. The whole-body scan performed 18 h after the inhalation showed clearly a faint delineation of the xenon activity, corresponding to the subcutaneous fatty tissue of the individual studied.

scholarly journals The Influence of Morphological Characteristics on Throw Speed in Handball

2020 ◽  
Vol 9 (3) ◽  
pp. 32-38
Author(s):  
Novica Gardašević ◽  
Dalibor Fulurija ◽  
Marko Joksimović ◽  
Nebahat Eler ◽  
Farruh Shavkatovich Ahmedov
Keyword(s):  
Morphological Characteristics ◽  
Positive Influence ◽  
The Body ◽  
Leg Length ◽  
Training Process ◽  
Skin Fold ◽  
Negative Effect ◽  
Morphological Variables ◽  
Criterion Variables ◽  
Intensive Growth

The diagnosis of morphological characteristics is an integral part of the entire training process in sports. This study aimed to determine the influence of morphological characteristics on the ball's speed of movement after the shoot from a spot and movement in handball. The sample included 36 female handball players aged 14.33 years. The predictor set consisted of 10 morphological variables. In comparison, the three variables constituted the criterion variables by which the ball's speed of movement was determined after different ways of shooting. Using regression analysis, it was found that the predictor set of variables explains about 70% of the variance for all three criterion variables. Individually, a statistically significant and positive influence on the speed of movement of the ball after the shot was recorded at the height and weight of the body, while a negative effect was observed for the variables; arm length, leg length and skin fold on the abdomen. Based on the results obtained, it can be concluded that morphological characteristics significantly influence the speed of movement of the ball after a shot in the handball, which can significantly contribute to the selection of handball players, as well as in establishing the tactics of handball, especially in situations where one shot decides the match. Also, the obtained results indicate the necessity of considering the age characteristics of the female respondents, that is, the need to adjust the training process to the period of intensive growth and development.

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