The Level Of Explosive Strength Of Lower Limbs Of Slovak Republic Representatives In Swimming

2020 ◽  
Author(s):  
Zuzana Pupišová
Keyword(s):  
Slovak Republic ◽  
Swimming Performance ◽  
Pearson Correlation ◽  
Statistical Significance ◽  
Lower Limbs ◽  
Average Height ◽  
Average Value ◽  
Explosive Strength ◽  
Jump Test ◽  
The Difference

The aim of the study was to detect the current level of explosive strength of lower limbs. Results were compared with the best individual personal performance which is evaluated through FINA points. 10 male and 14 female junior representatives in swimming (n=24; height = 178.7 ± 7.59 cm; weight = 67.5 ± 7.76 kg) and 10 male and 8 female senior rep-resentatives in swimming (n=18; height = 179.8 ± 5.54 cm; weight = 72.6 ± 8.32) from the Slovak Republic participated in testing. The explosive strength of lower limbs was meas-ured by standing broad jumps and by the diagnostic device Myotest where CMJ and SJ tests were used. The results were compared by Pearson correlation coeficient with the best point performance of a particular proband. The average height of the junior repre-sentatives in the SJ test was 33.0 cm and of the senior representatives was 40.9 cm. The average height of the junior representatives in the CMJ test was 36.0 cm and the value of the senior representatives was 45.9 cm. The average value of junior representatives in the standing broad jump test was 220.0 cm and in senior representatives was 269.3 cm. Senior representatives achieved better results in all tests. The average point performance in junior representatives was 708.0 points and in senior representatives was 761.7 points. Percen-tual difference between the groups was detected in tests at values from 18.1% to 21.6% and the difference in FINA points was 7.1%. Pearson correlation coeficient showed high and medium values on statistical significance of 1% between tests of explosive strength, although, it showed the low values between the explosive strength tests and value of FINA points. The explosive strength of the lower limbs is one of the factors of sports performance that affect swimming performance. However, its level of impact needs to be verified by fur-ther research.

scholarly journals Swimming Performance to 25 Meters Backstroke Depends on Selected Factors of Explosive Strength of Lower Limbs

2019 ◽  
Vol 59 (2) ◽  
pp. 203-213
Author(s):  
Natália Kováčová ◽  
Jaroslav Broďáni
Keyword(s):  
Average Velocity ◽  
Swimming Performance ◽  
Vertical Jump ◽  
Maximum Velocity ◽  
Lower Limbs ◽  
Dry Land ◽  
Arm Swing ◽  
Explosive Strength ◽  
Jump Test ◽  
Velocity Average

Summary The aim of our work was to analyze the partial shares of selected factors of explosive strength of lower limbs on the overall explanation of swimming performance to the 25 meters backstroke. 29 students of Physical Education took part in our research and completed 6 tests. These tests were realized on a dry-land and in the water and they consisted of swimming performance to 25 meters backstroke, swimming start speed to 4 meters, vertical jump with and without arm-swing, maximum and average velocity of take-off performance on dry land under the backstroke start conditions. The obtained data are described by descriptive statistics and all parameters were entered to the correlation analysis for their dependence evaluation. By the analysis, we found that all tests significantly correlated with each other (p < 0.01; p < 0.05) except for the start to 4 meters test and Tendo velocity average test. For the evaluation of factors that determine the swimming performance to 25 meters backstroke, we use the regression analysis of parameters where the regression model was reflected as statistically significant (R2 = 0.479 %; SEE = 3.396 %). Partial shares of individual tests, except for tests of maximal and average velocity on a dryland, showed up as statistically significant (p < 0.05; p < 0.01), with the highest share of swimming start to 4 meters performance (p < 0.01; r = 0.686). We used the regression step analysis in which we decrease the indicators to the three main factors of the strength of lower limbs model, which influence the swimming performance to the 25 meters backstroke significantly with large effect (R2 = 0.4787 %; f2 = 0.9183; F = 7.652; p < 0.01). Again, the highest and statistically significant (p < 0.01) share on the explanation of swimming performance had the start to 4 meters with 43.33 % percentage share. Besides the swimming start, the Countermovement Jump test was statistically significant too (p < 0.05) and statistically insignificant was test of maximum velocity on a dry-land. By this study we can evaluate how individual factors of strength of lower limbs influence the swimming performance and for the future it is necessary to complete them with the other factors for the better creation of the appropriate swimming training program.

scholarly journals Family Climate Patterns and Its Relationship with Self-Concept among Students at the University of Islamic Sciences in light of the Variables of Gender and Age

2017 ◽  
Vol 9 (1) ◽  
pp. 145
Author(s):  
Fatima Mohammad Rashed Al Talahin ◽  
Hana Khaled Al –Raqqad ◽  
Eman Saeed Al- Bourini ◽  
Bilal Adel Al-Kateeb
Keyword(s):  
Pearson Correlation ◽  
Statistical Significance ◽  
Self Concept ◽  
Family Climate ◽  
Gender And Age ◽  
Climate Patterns ◽  
The Difference ◽  
The University ◽  
The Impact ◽  
The Relationship

The aim of this study is to clarify the relationship between self-concept and patterns of family climate among students at the University of Islamic Sciences, and also aimed to investigate the effect of gender and age on this relationship.The sample of the study consisted of a group of students were selected randomly, totaling (139) students; (58) male and (81) female students.Two questionnaires were distributed on 139 students. The first questionnaire was on the impact of patterns of family climate on self-concept and the second one about self-concept. Then the researcher analyzed the results of each item in the questionnaire using appropriated statistical methods, calculated the correlation between self-concept and patterns of family climate using the Pearson correlation coefficient, and G-test to find the difference between correlation coefficients.The results showed a positive statistical significance relationship between family climate patterns on one hand and between self-concept in all its dimensions on the other hand.

scholarly journals Difference in height of maxillary alveolar ridge on edentulous women and dentate women using panoramic radiography

2019 ◽  
Vol 10 (2) ◽  
pp. 1243-1248
Author(s):  
Cek Dara Manja ◽  
Dennis
Keyword(s):  
Panoramic Radiography ◽  
Total Sample ◽  
Mechanical Stimulus ◽  
Average Height ◽  
Alveolar Ridge ◽  
Cross Sectional ◽  
Average Value ◽  
Significant Difference ◽  
The Difference ◽  
The Right

The height of the maxillary alveolar ridge can be measured using panoramic radiography. The decline occurred because the height of the alveolar ridge undergoes slow physiological resorption due to the absence of mechanical stimulus. The purpose of this research is to know the difference and the average height of the maxillary alveolar ridge in edentulous and dentate women using panoramic radiography. This study is an analytical method with a cross-sectional approach. A total sample of 40 women, edentulous and dentate has been measured. Measurements were made by measuring the distance between the lowest point of the infraorbital ridge and alveolar crest maxilla on the incisor point, right and left premolar, right and left molar. A statistical test is done using independent t-test. The results showed that the average value of a dentate women sample is greater than edentulous. The average value obtained by the dentate sample is greatest in incisor point by 37,57mm± 3,34mm and the smallest at the right molar point by 33,87mm ± 2,81mm. The average value obtained by the edentulous sample is greatest in incisor point by 35,30mm ± 2,79mm and the smallest at the right molar point by 31,84mm ± 3,85mm. It can be concluded that there is a significant difference in the height of the maxillary alveolar ridge on an edentulous sample and dentate, except the right molar teeth. The average height of the maxillary alveolar ridge in an edentulous sample is 33,35mm ± 3,43mm, and the dentate sample is 35,66mm ± 3,21mm.

scholarly journals GENOTYPE AND ABO BLOOD GROUP ASSOCIATION WITH PREVALENCE OF MALARIA AMONG PATIENTS IN UNIVERSITY OF NIGERIA MEDICAL CENTER: A CROSS-SECTIONAL EVALUATION

2019 ◽  
pp. 28-32
Author(s):  
Abdulmuminu Isah ◽  
Chibueze Anosike ◽  
Chukwuma Stephen Ogbodo ◽  
Charles Obinna Emeka ◽  
Chukwuemeka Sylvester Nworu
Keyword(s):  
Blood Group ◽  
Medical Center ◽  
Pearson Correlation ◽  
Statistical Significance ◽  
Malaria Prevalence ◽  
Abo Blood Group ◽  
Chi Square ◽  
Cross Sectional ◽  
The Difference ◽  
Cross Sectional Design

Objective: The aim of this study was to evaluate the prevalence of malaria and its relationship with the ABO blood group and genotype at the University of Nigeria Medical Centre. Methods: The study had a prospective cross-sectional design in which malaria status and blood groups and genotype were determined. All collected data were analysed using Statistical product and services Solution (V.21). Frequencies and percentages were used to describe the data while Chi-square and Pearson correlation were used to determine associations between malaria prevalence and patients’ demographic and clinical characteristics. Statistical significance was considered for p<0.05. Results: Three hundred and twenty-three (323) patients were tested for malaria, 245(75.9%) of whom tested positive. The prevalence was highest for patient’s aged 19-25 y (28.5%). The difference was statistically significant for age: χ2 (5) = 33.60, p = 0.0005. There were more blood group O (57.6%) among the patients, while AA genotype was the majority (72.4%). Those with blood group O had the highest prevalence of malaria (33.7%) and it was statistically significant (χ2 (3) = 72.10, p = 0.0005)). Correlation showed that the association between blood group and malaria prevalence was moderate (R = 0.457). The AA genotype had more incidence of malaria (54.5%), but the difference was not statistically significant. Conclusion: The prevalence of malaria was high among the patients surveyed. Its association with the patients’ ABO blood group was established to be statistically significant, with blood group O having the highest incidence. Although AA genotype was observed to have the highest cases of malaria, the relationship was found not to be significant.

scholarly journals Reliability of joint position sense measured in the knee using the level function of the iPhone “Measure” application

PLoS ONE ◽  
2021 ◽  
Vol 16 (8) ◽  
pp. e0256561
Author(s):  
Yuki Nakashima ◽  
Daisuke Iwaki ◽  
Toshihiro Kawae ◽  
Kenichi Fudeyasu ◽  
Hiroaki Kimura
Keyword(s):  
Pearson Correlation ◽  
Correlation Coefficients ◽  
Position Sense ◽  
Joint Position Sense ◽  
Initial Position ◽  
Lower Limbs ◽  
Joint Position ◽  
Target Angle ◽  
Level Function ◽  
The Difference

An impaired joint position sense (JPS) causes activity limitations, postural imbalance, and falls. This study compares the reliability of knee JPS measurements between the iPhone’s “Measure” application and VICON motion capture system. Eleven healthy participants were recruited for the study. To conduct the study measures, the blindfolded participant, with an iPhone fixed to the lower non-dominant leg, was seated with their lower limbs in a relaxed position. The examiner held the participant’s leg at the target angle (30°/60° from initial position) for 5 s before releasing it. The participant was then instructed to move the leg to the same target angle and hold it for 5 s (replicated angle). Absolute angular error (AAE), i.e., the difference between the target and replicated angles, was measured. Intraclass and Pearson correlation coefficients established statistically significant relationships. The study comprised 6 males and 5 females of mean age 27.6±5.6 years, mean height 1.67±0.10 m, and mean body weight 60.7±10.3 kg. Strong correlations existed between iPhone and VICON 30° (ICC = 0.969, r = 0.960, P < 0.001) and 60° AAEs (ICC 0.969, r = 0.960, P < 0.001). Bland-Altman plots showed a mean difference of 0.43° and 0.20° between the AAE measurements at 30° and 60°, respectively. The iPhone’s “Measure” application is a simple and reliable method for measuring JPS in clinical practice and sports/fitness settings.

scholarly journals Skeletal age and explosive strength in young volleyball players

2017 ◽  
Vol 19 (3) ◽  
pp. 331 ◽  
Author(s):  
Petrus Gantois ◽  
Vanessa C. M. Pinto ◽  
Kezianne R. de Castro ◽  
Paulo V. João ◽  
Paulo M. S. Dantas ◽  
...  
Keyword(s):  
Test Performance ◽  
Vertical Jump ◽  
Skeletal Age ◽  
Lower Limbs ◽  
Explosive Strength ◽  
Jump Test ◽  
Biological Development ◽  
Explained Variance ◽  
Post Hoc ◽  
Medicine Ball

Identifying diferent anthropometric, physiological and motor aspects is essential to obtain success in sports practice. However, these components may be developed in same age subjects diferently, in part due biological development. he aim of the study was compare and correlate the explosive strength to biological maturation by sex, obtained by estimation of skeletal age based on anthropometric variables. he sample consisted of 239 subjects of both sexes, aged 10 to 13 years. Maturation was assessed by skeletal age predictive equation and upper and lower limbs explosive strength using medicine ball throw test and vertical jump, respectively. Skeletal age was assessed by skeletal age using a predictive anthropometrical based equation. Upper and lower limbs explosive strength were evaluated by medicine ball throwing test and vertical jump test, respectively. Post hoc analysis showed delayed biological development subjects had worst medicine ball throwing test performance than accelerated boys (p=0.001; d=0.96) and girls (p< 0.01; d= 2.01); regarding to vertical jump test, worst performance was also detected to maturational delayed boys when compared to accelerated ones (p=0.24; d=1.1) and girls (p=0.007; d=0.75). Regression analysis showed skeletal age explained variance of 36% and 19.2% for boys and 45.2% and 16.1% for girls upper and lower limbs explosive strength. Skeletal age is positively related to upper and lower limbs explosive strength and show higher performance for accelerated biological development young players when compared to delayed ones, independently from sex. 

scholarly journals Explosive Strength of Lower Limbs in 10 – 12 Years Old Athletes of Individual Sports

2020 ◽  
Vol 60 (1) ◽  
pp. 94-104
Author(s):  
Daniela Leütterová ◽  
Petra Tomková ◽  
Dalibor Dzugas ◽  
Peter Kačúr ◽  
Pablo Prieto Gonzalez
Keyword(s):  
Vertical Jump ◽  
Lower Limbs ◽  
Statistical Characteristics ◽  
Strength Development ◽  
Countermovement Jump ◽  
Squat Jump ◽  
Explosive Strength ◽  
Jump Test ◽  
Student’S T ◽  
Individual Sports

SummaryThe aim of the study was to determine the levels of lower limb explosive strength of girls in different sport specialization. The sample consisted of 24 girls in aerobic gymnastics (n = 12) and athletic (n = 12) aged 10 to 12 years. To assess the levels of girls’ lower limbs explosive strength, we administered the following tests: countermovement jump test, countermovement jump with free arms test, squat jump test, 10-seconds repetitive jumping test. Testing sessions took place in September 2019. To obtain data about the levels of lower limbs explosive strength, we recorded step height (cm) and duration of the flight phase (s). Data about the lower limbs explosive strength were collected using the Optogait system for optical detection. We applied basic statistical characteristics, namely Student’s t-test and multivariate linear regression. There were no significant differences between girls in aerobic gymnastics and athletics. We recorded better test results in the group of girl’s athletes in the countermovement jump, countermovement jump with free arms and squat jump. In the group of girl’s involved in aerobic gymnastics, we recorded better results in the 10-second repetitive vertical jumping and vertical jump strength. According to the collected data, we may conclude that the training process of the selected girls in terms of explosive strength development is significantly different. Girls involved in aerobic gymnastics showed a higher level of performance in the 10-second vertical jump, which results from the structure of sport specificity.

BODY BUILT AND PHYSICAL FITNESS OF 14-16-YEAR-OLD FOOTBALL PLAYERS AS COMPARED WITH NON-TRAINING PEERS

2018 ◽  
Vol 28 (82) ◽  
pp. 53-60
Author(s):  
Monika Opanowska ◽  
Elżbieta Prętkiewicz-Abacjew ◽  
Barbara Wilk ◽  
Marcin Pasek ◽  
Paweł Skonieczny ◽  
...  
Keyword(s):  
Physical Fitness ◽  
Pearson Correlation ◽  
Statistical Significance ◽  
Body Height ◽  
The Body ◽  
Lower Limbs ◽  
Football Players ◽  
Somatic Development ◽  
Motor Abilities ◽  
Football Training

Aim: The objective of the study was the assessment of somatic build and physical fitness of 14-16-year-old football players as compared with non-training peers as well as relation between their body-build and physical fitness. Basic procedures: 108 football players and 101 non-training boys participated in the research. The level of somatic development of boys was assessed on the basis of body height and weight measurements, which were used to determine BMI and Rohrer index. Additionally functional length of left and right lower limbs was determined. The level of physical fitness was tested by EUROFIT. The strength and relation between body built features and physical fitness were measured by the Pearson correlation coefficient r linear, and by the test t to define its significance. Results: Football players and non-training boys characterized leptosomatic build type. Only 14-year-old footballers were higher in terms of statistical significance and had longer lower limbs in comparison with non-training peers. In physical fitness tests football players had better scores than non-training ones, and the differences of statistical significance most frequently occurring in 14-year-olds were demonstrated. Conclusion. The assessed motor abilities forming physical fitness of football players and non-training peers indicated clear correlations with body built only in 14-year-old boys. Rare occurrence of smaller correlations in 15-16-year-old football players can suggest that football training created a certain structure of physical fitness, different from that of non-training peers, but in most cases it was not related to the body structure.

scholarly journals Analysis of vertical and horizontal impulsion in male handball athletes from joinville-sc

2021 ◽  
pp. 47082-47088
Keyword(s):  
Data Collection ◽  
Strength Test ◽  
Lower Limbs ◽  
Future Research ◽  
Age Group ◽  
Explosive Strength ◽  
Jump Test ◽  
Data Collection And Analysis ◽  
Olympic Sport ◽  
The City

Handball has become a popular sport because it is easy to learn and very common in Brazilian schools, mostly, given that it is an Olympic sport. The goal of this study is to analyze the vertical and horizontal impulsion index in male handball athletes from Joinville. The sample counted 17 athletes with ages ranging from 14 to 18 years old. Seventeen athletes belonging to the handball team of the city of Joinville were investigated. For data collection the tests were used: Sargent Jump Test (Sargent, 1921) and Lower Limb Explosive Strength Test (GAYA, 2016), in all jumps three attempts were performed and only the highest of them was taken into account for validation. After the results in the tests the athletes obtained in the Jump Without Assistance (SSA), 47.05% of the athletes had a result considered GOOD, 35.29% were considered REGULAR and 17.64% in the VERY GOOD. In the Sargent Jump with aid of upper limbs, with the nomenclature Jump with Aid (SCA), 41.17% had jumps considered VERY GOOD, 35.29% considered GOOD, 11.76% considered GREAT and 5.88% considered REGULAR. In the lower limbs explosive strength test (TFEMI), 41.18% of the athletes were classified as VERY GOOD, 29.41% as GOOD, 23.52% as REASONABLE, and 5.88% as FAIL. After the conclusion of the data collection and analysis, the athletes in this study were classified with a jump considered good for their age group and most of the analyzed athletes had results higher than expected. The author highlights that with a more detailed study and with a more in-depth approach, so as to corroborate with other studies and with this one for future research.

scholarly journals Correlação entre percepção subjetiva do esforço e fadiga neuromuscular dos membros inferiores em atletas de futebol

2020 ◽  
Vol 18 (3) ◽  
pp. 37-41
Author(s):  
Caique Lopes Müeller ◽  
Pedro Sotero da Cunha Neto ◽  
Eloir Junior da Silva Dos Santos ◽  
Alexandre Oliveira ◽  
Rosimeide Francisco dos Santos Legnani ◽  
...  
Keyword(s):  
Perceived Exertion ◽  
Vertical Jump ◽  
Training Session ◽  
Rating Of Perceived Exertion ◽  
Lower Limbs ◽  
Fat Percentage ◽  
Jump Test ◽  
Before And After ◽  
Statistical Program ◽  
The Difference

OBJETIVO: Determinar a correlação entre a percepção subjetiva do esforço (PSE) e a fadiga neuromuscular dos membros inferiores por meio de saltos mensurados no pré e pós treino em atletas de futebol.MÉTODOS: Quatorze atletas de futebol (sub 17) foram monitorados ao longo de quatro sessões de treinamento. Com as seguintes características: estatura (173±6,81cm), peso (64,43±5,80kg) e percentual de gordura (14,74±3,11). A PSE foi monitorada por meio do aplicativo e-trimp, 15 minutos após o final de cada sessão de treinamento. Os saltos foram avaliados por meio da plataforma de salto Jump System Pro, 10 minutos, antes e depois das sessões de treinamento. Os dados foram analisados no programa estatístico SPSS por meio da estatística descritiva e correlação de Spearman.RESULTADOS: A correlação entre a PSE e a diferença da potência relativa do salto vertical (pré/pós treino) foi fraca para todas as sessões. As sessões 1 e 4 apresentaram correlação negativa (r=-0,184, p=0,530; r=-0,159, p=0,587). As sessões 2 e 3 apresentaram correlação positiva (r=0,010, p=0,973; r=0,373, p=0,188), respectivamente.CONCLUSÃO: Não foram observadas correlações estatisticamente significativas entre a PSE e a potência relativa de salto nos atletas avaliados.ABSTRACT. The correlation between the rating of perceived exertion and neuromuscular fatigue on the lower body in soccer athletes.OBJECTIVE: Define the correlation between the rating of perceived exertion (RPE) and the power of the lower limbs before and after training in soccer athletes.METHODS: Were monitored 14 soccer athletes (under 17 years old) over four training sessions. With the following characteristics: height (173±6.81cm), weight (64.43±5.80kg) and fat percentage (14.74±3.11). RPE was monitored through the e-trimp app, 15 minutes after the end of each training session. Jumps were evaluated through the Jump System Pro jumping platform, 10 minutes before and after the training sessions. Data was analyzed in the SPSS statistical program using descriptive statistics and Spearman correlation.RESULTS: The correlation between the RPE and the difference of the relative power of the vertical jump test (pre/post training) was weak for all the sessions. Sessions 1 and 4 presented a negative correlation (r=-0.184, p=0.530; r=-0.159, p=0.587). Sessions 2 and 3 showed a positive correlation (r=0.010, p=0.973; r=0.373, p=0.188), respectively.CONCLUSION: There were no statistically significant correlations between the RPE and the relative jumping power in the evaluated athletes.

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