Aspects of the postural alignment and plantar structure in junior female table tennis players

The purpose of the present scientific research in performance table tennis at the level of junior female athletes was to determine the postural alignment and structure of the foot sole at static level, in order to create an ameliorationprogram specific to kinetotherapy in the future, in case of identifying deficiencies.Hypothesis: It is assumed that by using modern means of assessing posture and plantar footprints at dynamic level,we can identify the correlations between them in order to facilitate effective compensation systems.The aim of this research is to improve the quality of life and sports performance in junior female table tennisplayers.Methods: The assessment of body posture and plantar footprint was performed by using images, using the freeStepsoftware by Sensor Medica and the assessment of the static plantar pressure and surface was performed by usingthe FreeMedbaropodometric platform. The study was conducted on a group of 9 female table tennis athletes withages between 10 and 12 years old. The deviations from the normal postural and plantar values were calculated withIBM SPSS Statistics software, Version 23.Results and Conclusions: The values (p <0.001 <α = 0.05) for the left sole, respectively (p = 0.001 <α = 0.05) for the right sole, highlight significant differences between the total plantar area and the reference value on both soles of the foot, from the postural assessment resulting a significant difference between the group values and the reference value for all measurements (p <0.001 <α = 0.05).

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Competitive activity of elite female tennis players on courts with different cover types

SCIENCE AND SPORT: current trends ◽

10.36028/2308-8826-2019-7-4-66-70 ◽

2019 ◽

Vol 7 (4) ◽

pp. 66-70

Author(s):

Anna Skorodumova ◽

Igor Baranov ◽

Aliya Tarpischeva ◽

Snegana Semenova ◽

Filipp Tarpishchev

Keyword(s):

Female Athletes ◽

Tennis Players ◽

Process Plans ◽

Study Results ◽

Significant Difference ◽

Competitive Activity ◽

Training Courses ◽

The Difference ◽

The Right ◽

Quantitative Indicators

The purpose is to identify and compare the indicators of external parameters of load experienced by elite fe- male tennis players during competitive matches on courts with various covers. Methods and organization of the research. We used the following methods of research: 1) educational observa- tion using stenographic record of each shot and timing of each point; 2) methods of mathematical statistics. The recording of competitive matches was held at Grand Slam tournaments and at other major international competitions played on courts with "slow" and "fast" cover. We recorded and analyzed 53 matches. It was im- portant to solve two problems – to get quantitative indicators of external parameters of load experienced by elite female athletes during matches on courts with various covers and to compare them. In order to have the right to compare, it was necessary to make sure that there was no difference in the excellence level of female tennis players who took part in the competition. For this purpose, we calculated the rating of pairs and the difference of player ratings in each pair. We selected the pairs with no significant excellence difference who took part in the same tournaments with various court covers. We selected 20 matches on each cover type. Research results. Comparative analysis of obtained data resulted in identification of significant difference of all indicators of external parameters of load experienced during matches on "fast" and "slow" courts. Conclusion. The authors come to the conclusion that the study results can be used in adjustment of training process plans for athletes during preparation for tournaments on "fast" and "slow" covers at the stages of sport perfection and sport excellence, in lectures for sport university students and coaches at advanced training courses, and in writing qualification papers.

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DETERMINATION OF FEMALE TABLE TENNIS SPORT PERFORMANCE BY SENZOR MOTORIC REACTION TIME

GYMNASIUM ◽

10.29081/gsjesh.2016.17.2.18 ◽

2017 ◽

Vol XVII (2) ◽

Author(s):

Henrieta Hornigova ◽

Ladislava Dolezajova ◽

Jaromir Sedlacek ◽

Peter Sagat ◽

Gheorghe Balint

Keyword(s):

Reaction Time ◽

Lower Extremities ◽

Sport Performance ◽

Table Tennis ◽

Motor Reaction ◽

Significance Level ◽

Tennis Players ◽

Motor Reaction Time ◽

Left Handed ◽

Significant Difference

In the sport performance structure of table tennis is sensor motor reaction time one of the most important factors for reaching top-level results, both in males and females groups. In this research we watched 23 female table tennis players from Slovakia; 9 mini cadets (12-13 years), 6 cadets (14-15 years) and 8 juniors (16-18 years). Girls were tested by modified agility test for table tennis players (Vacenovsky & Vencurik, 2013) with machine FITRO Agility check. Thus we gained their sensor motor reaction times. By Mann-Whitney U-test we studied differences between age categories, upper and lower extremities, dominant (forehand) and un-dominant (backhand) side, right and left-handed players. We used significance level p<0.05. In our research we did not confirm expected results that the older groups have shorter sensor motor reaction time. We also expected shorter reaction time of upper extremities comparing lower extremities; this was confirmed, though there was found statistical significant difference only in juniors group. Groups of mini-cadets and cadets have better (shorter) sensor motor reaction time from backhand side, while group of junior is better from forehand side. We also confirmed that left-handed players have slightly shorter reaction time.

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The Effect of Mental-Imagery Training on Performance Enhancement with 7-10-Year-Old Children

The Sport Psychologist ◽

10.1123/tsp.6.3.230 ◽

1992 ◽

Vol 6 (3) ◽

pp. 230-241 ◽

Cited By ~ 39

Author(s):

Zhang Li-Wei ◽

Ma Qi-Wei ◽

Terry Orlick ◽

Louise Zitzelsberger

Keyword(s):

Mental Imagery ◽

Performance Enhancement ◽

Field Studies ◽

Table Tennis ◽

Technical Quality ◽

Tennis Players ◽

Imagery Training ◽

Comparison Groups ◽

Shed Light

Field studies investigating the potential benefit of mental-imagery training with young children have been lacking in the literature. The purpose of this investigation was to shed light on the appropriateness of mental training for children. Three groups of 7–10-year-old table tennis players participated in this study to assess the value of mental-imagery training, specifically with respect to children’s performance enhancement. The results indicated that children who used mental imagery experienced significantly greater improvement in the accuracy and technical quality of their shots than children in comparison groups. This study suggests that mental-imagery training, combined with videotaped images and relaxation, may be particularly promising for children.

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PENGARUH KONSENTRASI TEPUNG TEMPE TERHADAP NUTRISI DAN MUTU SENSORI OPAK SINGKONG DARI LOMBOK UTARA

Pro Food ◽

10.29303/profood.v5i2.99 ◽

2019 ◽

Vol 5 (2) ◽

pp. 459

Author(s):

Arindra Pemilia ◽

Dody Handito ◽

Yeni Sulastri

Keyword(s):

Protein Content ◽

Sensory Evaluation ◽

Block Design ◽

Fat Content ◽

Carbohydrate Content ◽

Polynomial Method ◽

Honestly Significant Difference ◽

Significant Difference ◽

The Right

ABSTRACT The objective of this research was to determine the right concentration of tempeh flour to enhance nutrition and sensory quality of cassava opak from North Lombok. The method used in this research was Randomized Complete Block Design (RCBD) with six treatments which adding 0% (P0), 5% (P1), 10% (P2), 15% (P3), 20% (P4), 25% (P5) tempeh flour from tapioca starch weight. The data obtained were analyzed by analysis of variance (ANOVA) at 5% level using SPSS software. If there was any difference, the data tested further by Orthogonal Polynomial Method (OPM) for the nutrient and by Honestly Significant Difference (HSD) for sensory evaluation at 5% level. The result showed that the tempeh flour concentration gave a significant difference on protein content, fat content, carbohydrate content, total calories, hedonic test (colour and taste) and scoring test ( colour, taste and aroma). Based on the result of sensory evaluation, the additional of 15% of tempeh flour was slightly liked by the panelis and it had protein content 5.92%; moisture content 4.10%; ash content 2.60%; fat content 10.89%; carbohydrate content 76.6%; total calories 427.63 Cal/100 g; slightly yellow, slightly crunchy; slightly smells tempeh and slightly tastes tempeh. Keywords: Cassava, opak, protein, tempeh flour ABSTRAK Tujuan dari penelitian ini adalah untuk menentukan konsentrasi tepung tempe yang tepat untuk meningkatkan nutrisi dan mutu sensori opak singkong dari Lombok Utara. Rancangan yang digunakan dalam penelitian ini adalah Rancangan Acak Kelompok (RAK) dengan 6 taraf perlakuan konsentrasi tepung tempe 0% (P0), 5% (P1), 10% (P2), 15% (P3), 20% (P4), 25% (P5) dari berat tepung tapioka. Data hasil pengamatan diuji dengan analisis keragaman (ANOVA) pada taraf 5% menggunakan software SPSS, apabila terdapat perbedaan nyata diuji lanjut dengan menggunakan uji Polinomial Ortogonal untuk uji nutrisi dan Beda Nyata Jujur (BNJ) untuk uji sensoris pada taraf 5%. Hasil penelitian menunjukkan bahwa penambahan tepung tempe memberikan pengaruh yang berbeda nyata terhadap kadar protein, kadar lemak, kadar karbohidrat dan total kalori serta uji sensoris hedonik (warna dan rasa) dan uji scoring untuk (warna, rasa dan aroma). Berdasarkan hasil uji sensoris penambahan tepung tempe sebanyak 15% adalah perlakuan yang cita rasanya agak disukai oleh panelis dengan kadar protein 5,92%; kadar air 4,10%; kadar abu 2,60%; kadar lemak 10,89%; kadar karbohidrat 76,46%; total kalori 427,63 Kal/100 g; berwarna putih kekuningan; bertekstur agak renyah; agak beraroma tempe dan agak berasa tempe. Kata Kunci: Opak, protein, singkong, tepung tempe

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Body composition and nutrition of female athletes

Roczniki Państwowego Zakładu Higieny ◽

10.32394/rpzh.2019.0074 ◽

2019 ◽

pp. 243-251 ◽

Cited By ~ 2

Author(s):

Karol Pilis ◽

Krzysztof Stec ◽

Anna Pilis ◽

Agata Mroczek ◽

Cezary Michalski ◽

...

Keyword(s):

Physical Education ◽

Female Athletes ◽

Daily Intake ◽

Fat Free Mass ◽

Table Tennis ◽

Tennis Players ◽

Physical Education Students ◽

Low Carbohydrate ◽

Dietary Education ◽

Post Hoc

Background. The somatic features of the athletes’ bodies partially determine their sporting level and are conditioned to a large extent by the state of nutrition. Objective. The aim of this paper is to present nutritional status and its correlation with the somatic determinants of training athletes and physical education students. Material and methods. This study involved 12 weightlifting players (subgroup-WL), 15 soccer players (subgroup-SP), 12 table tennis players (subgroup-TT) and 12 female students of physical education (subgroup-C). In all subjects, the age and somatic variables were recorded and the daily intake of energy, water, proteins, fats and carbohydrates was determined by 24-h dietary recalls. Results. Although the analysis of variance did not show significant differences in somatic variables and nutrition data, post hoc analysis showed significant differences between some subgroups in terms of age, BMI, fat content (BF), fat-free mass (FFM) and the amount of water, protein and carbohydrates consumed during the day. It was also shown that somatic variables correlated with relatively expressed amounts of energy, proteins and carbohydrates consumed in individual subgroups, as well as in the whole group formed from all subgroups of studied women. In addition, there were significant correlations between somatic variables and the total amount of water consumed in the whole group and the total amount of protein consumed in subgroup C (p<0.05), as well as the total amount of fat consumed in subgroup WL. Conclusions. In summary, it was found that the examined women used an abnormal hypoenergetic diet with too low carbohydrate content in which were more useful relative than absolute amounts of consumed proteins, fats and carbohydrates. In this unfavorable situation, dietary education of the respondents seems to be necessary.

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The Application of Statistical Parametric Mapping to Evaluate Differences in Topspin Backhand between Chinese and Polish Female Table Tennis Players

Applied Bionics and Biomechanics ◽

10.1155/2021/5555874 ◽

2021 ◽

Vol 2021 ◽

pp. 1-11

Author(s):

Ziemowit Bańkosz ◽

Sławomir Winiarski

Keyword(s):

Female Athletes ◽

Statistical Parametric Mapping ◽

Movement Pattern ◽

Measurement Unit ◽

Table Tennis ◽

Parametric Mapping ◽

Tennis Players ◽

National Team ◽

Training Methodologies ◽

High Level

The research is aimed at comparing the kinematics (the movement pattern in the most important joints and accelerations of the playing hand) between female table tennis players coached in Poland (POL) and China (CHIN) during the performance of a topspin backhand stroke (so-called quick topspin). The study involved six female table tennis players at a high sports skill level, playing in Poland’s highest league. Three were national team members of Poland (age: 20.3 ± 1.9 ), while the other three were players from China (age: 20.0 ± 0.0 ). Kinematics was measured using MR3 myoMuscle Master Edition system—inertial measurement unit (IMU) system. The participants performed one task of topspin backhand as a response to a topspin ball, repeated 15 times. Statistical parametric mapping (SPM) was calculated using SPM1D in a Python package that offered a high-level interface to SPM1D. The SPM method allowed for the determination of differences between the Chinese and Polish female athletes. The differences found are probably mainly due to differences in the training methodologies caused by different coaching systems. The observed differences include, among others, greater use of the so-called small steps in order to adapt and be ready during the back to ready position and backswing phases, which gives the CHIN players slightly better conditions for preparation for the next plays. The CHIN players’ position compared to that of the POL players favours a quicker transition from the backhand to the forehand play. This difference is probably related to the difference in the dominant playing styles of the groups studied. Despite the differences in movement patterns in both groups, the exact value of playing hand was achieved. This may be a manifestation of the phenomenon of equifinality and compensation. All the differences found are probably mainly due to differences in the training methodologies caused by different coaching systems.

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Analisis Antropometrik Dan VO2 Max Dengan Prestasi Pemain BKMF Tenis Meja FIK UNM

SPORTIVE Journal Of Physical Education Sport and Recreation ◽

10.26858/sportive.v2i2.16845 ◽

2019 ◽

Vol 2 (2) ◽

pp. 128

Author(s):

Sahabuddin Sahabuddin

Keyword(s):

Data Processing ◽

Table Tennis ◽

Vo2 Max ◽

Chi Square ◽

Tennis Players ◽

Anova Test ◽

Average Value ◽

Significant Difference ◽

The One ◽

One Way Anova

ABSTRACTThe research objective was to determine the effect of anthropometrics and VO2 max on the performance of table tennis players. The research design or type of research used in this study is correlational. The population in this study were all BKMF FIK UNM table tennis players. The sample in this study were players. The data analysis used was univariate analysis and bivariate analysis. By using the Chi – Square statistical test with a significance level of α = 0.05. Based on the results of data analysis, it can be concluded that; (1) There is a significant anthropometric difference with the achievement of table tennis athletes at BKMF Tennis table FIK UNM. This is evidenced by the results of data processing through the One Way Anova test, the average value of each group at anthropometric <0.05 means that Ho is rejected, meaning that there is a significant difference between groups, (2) There is a significant difference between VO2 Max and the performance of table tennis athletes at BKMF Tenismeja. FIK UNM. This is proven by the results of data processing through the One Way Anova test, the average value of each group at VO2 Max <0.05 means that Ho is rejected, meaning that there is a significant difference between groups, and (3) There is a significant difference in the frequency of training with the achievement of table tennis athletes unit of tensimeja Unhas. This is proven by the results of data processing through the One Way Anova test, the average value of each group at training frequency <0.05 means that Ho is rejected, meaning that there is a real difference between groups. ABSTRAKTujuan Penelitian adalah untuk mengetahui pengaruh antropometrik dan VO2 max dengan prestasi pemain tenismejaDesain penelitian atau jenis penelitian yang digunakan dalam penelitian ini adalah korelasional. Populasi dalam penelitian ini adalah seluruh pemain tenismeja BKMF FIK UNM. Sampel dalam penelitian ini adalah pemain. Analisis data yang digunakan adalah analisa univariate dan analisa bivariate. Dengan menggunakan uji statistic Chi – Square dengan tingkat kemaknaan α = 0,05. Berdasarkan hasil analisis data dapat disimpulkan bahwa; (1) Ada perbedaan yang signifikan antropometrik dengan prestasi atlet tenismeja pada BKMF Tenismeja FIK UNM. Hal ini terbukti dengan hasil pengolahan data melalui Uji One Way Anova diperoleh nilai rata-rata tiap kelompok pada antropometrik < 0.05 berarti Ho ditolak, berarti ada perbedaan nyata antara kelompok, (2) Ada perbedaan yang signifikan VO2 Max dengan prestasi atlet tenismeja pada BKMF Tenismeja FIK UNM. Hal ini terbukti dengan hasil pengolahan data melalui Uji One Way Anova diperoleh nilai rata-rata tiap kelompok pada VO2 Max < 0.05 berarti Ho ditolak, berarti ada perbedaan nyata antara kelompok, dan (3) Ada perbedaan yang signifikan frekuensi latihan dengan prestasi atlet tenismeja pada unit tensimeja Unhas. Hal ini terbukti dengan hasil pengolahan data melalui Uji One Way Anova diperoleh nilai rata-rata tiap kelompok pada frekuensi latihan < 0.05 berarti Ho ditolak, berarti ada perbedaan nyata antara kelompok.

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Validation and Repeatability of Inferior minus Superior Value and its Cut-off Value in Anterior Sagittal Curvature Map Using Pentacam in Early Keratoconus

QJM ◽

10.1093/qjmed/hcab109.021 ◽

2021 ◽

Vol 114 (Supplement_1) ◽

Author(s):

Mohammed El Sharkawy Mohammed Yousef ◽

Rania Serag Elkitkat ◽

Maged Maher Salib Roshdy ◽

Khaled Abdel Wahab Eltagoury

Keyword(s):

Refractive Surgery ◽

Poor Quality ◽

University Hospitals ◽

Cross Sectional ◽

High Area ◽

Quality Of Vision ◽

Significant Difference ◽

The Right ◽

Is Value

Abstract Background : Keratoconus (KC) is a bilateral asymmetric localised inferior and central corneal thinning and ectasia. Usually, it causes high myopia and irregular astigmatism resulting in a poor quality of vision. One of the most important ways of avoiding iatrogenic ectasia in cornea during refractive surgery is to detect KC in its earliest stage using the Pentacam. An important asymmetry decentration index is the inferior minus superior (IS) value. Purpose : Detection of Inferior minus Superior (IS) value and its Cut-off Value Methods : This is a cross-sectional, case control study that included 92 right eyes of 92 subjects, who presented to the outpatient clinic of “Al Watany Eye Hospitals” seeking refractive surgery or routine medical consultations. Our study focused on the measurement of the IS-value in early KC (TKC grade 1 and FFKC) and normal eyes. The right eye of each candidate was scanned 5 times in the same setting using the Pentacam. The study adhered to the tenets of the Declaration of Helsinki, and an approval was obtained from the ethical committee of Ain Shams University Hospitals. Results : We detected remarkably high statistically significant difference between patients and controls regarding the IS-value (p < 0.001). The mean (±SD) of control and cases group was 0.3 ± 0.2 and 1.4 ± 0.6, respectively. The cut-off point of 0.69 with high area under the receiver operating characteristic (AUROC). Coefficient of variation median (95% CI) for cases and controls were 1.4% (0.9 to 3.1%) and 6.2% (3 to 9.4%), respectively. Conclusion : The IS-value has a high repeatability and AUROC for differentiating early KC from normal corneas. It can be regarded as an accurate parameter for early KC detection.

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Assessment of Tear Film Quality among Smokers Using Tear Ferning Patterns

Journal of Ophthalmology ◽

10.1155/2016/8154315 ◽

2016 ◽

Vol 2016 ◽

pp. 1-5 ◽

Cited By ~ 1

Author(s):

Ali M. Masmali ◽

Adil Al-Shehri ◽

Saud A. Alanazi ◽

Ali Abusharaha ◽

Raied Fagehi ◽

...

Keyword(s):

Cigarette Smoking ◽

Tear Film ◽

Young Male ◽

Strong Correlations ◽

Cigarette Smokers ◽

Mean Values ◽

Significant Difference ◽

The Mean ◽

The Right

Purpose. To investigate the effect of cigarette smoking on the ocular tear film. Methods. Thirty healthy young male cigarette smokers (20–38 years old) and 30 healthy age matched nonsmokers were enrolled in the study. McMonnies questionnaire, slit lamp, and PRT test were used to screen the subjects. Tear samples were collected from the right eyes and tear ferning patterns were observed and graded. Results. The mean MacMonnies scores and TF grades were significantly higher in the smoker subjects (mean ± SD = 9.83±5.22 and 0.96±0.54, resp.) compared to nonsmokers (mean ± SD = 5.96±3.06 and 0.41±0.38, resp.). The mean values obtained from PRT and TBUT tests were 22.23±6.35 mm and 12.17±3.81 s for smokers and 22.16±5.63 mm and 14.13±2.62 s for nonsmokers, respectively. Strong correlations were found between MacMonnies scores and both PRT (r=0.596) and TF (r=0.516). There was statistically significant difference in TF grades (p=0.00), TBUT (p=0.036) and McMonnies (p=0.02) between smokers and nonsmokers. Conclusion. Cigarette smoking could have a significant effect on the tear film quality of the eye.

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Analisis Strategi Positioning Produk Berdasarkan Persepsi Konsumen Pada Industri Batik Di Jawa Timur

MANAJERIAL ◽

10.30587/manajerial.v8i01.1975 ◽

2021 ◽

Vol 8 (01) ◽

pp. 85

Author(s):

Kristiningsih Kristiningsih ◽

Lestari Lestari ◽

Wiwik Herawati

Keyword(s):

Sample Selection ◽

Sampling Technique ◽

Quality Attributes ◽

Competitive Position ◽

Theoretical Contribution ◽

Artistic Value ◽

Significant Difference ◽

Design Innovation ◽

The Right

Background - Competition in the Batik industry in Indonesia is quite sharp. Therefore it is necessary to apply the right marketing strategy in this industry. Whereas each batik industry that originates from the region has its own uniqueness that can attract the attention of consumers. Therefore, a positioning strategy for batik products is needed to be able to create more value in the minds of consumers compared to its competitors. Purpose - This research purposed to describe the position of competition (positioning) on batik industry in East Java based on the perceptions of local batik consumers. Design / Methodology / Approach - The study took samples of batik consumers in 9 cities in East Java, namely Bangkalan, Sidoarjo, Lamongan, Tuban, Pasuruan, Tulungagung, Mojokerto, Ponorogo and Banyuwangi. The population was taken by using purposive sampling technique. Respondents were taken as many as 200 respondents from selected batik producing cities. The research was conducted on 9 kinds of attributes that distinguish the distinctive characteristics of batik between regions in East Java including the quality of the fabric used, the quality of the coloring of the fabrics used, the patterns or motifs, the various colors, prices, design innovation, popularity, value art and intrinsic meaning. To conduct the analysis, analysis techniques using multidimensional scaling were used. Results and Discussion - The results showed a significant difference between the batik in each region which shows the characteristics of the area. The implication of this research was very useful for batik business in East Java to find out their competitive position among this industry in East Java, so that they can determine the right competition strategy according to the advantages or characteristics of each region. Conclusion - There are differences in perceptions of the quality attributes of the fabric material, the quality attributes of fabric coloring, batik patterns or motifs, various colors, prices, design innovation, popularity, artistic value and intrinsic meaning of batik batik in East Java which is the object of this research. Research implication - The research contributions are presented in the form of theoretical contributions and practical contributions. The theoretical contribution made is that this study supports previous research, that marketers can find out the competitive position in the industry through the perceived attributes of consumers. The implication of this research is very useful for marketers to find out who their close competitors are so that marketers can apply the right strategy to deal with competitors. Batik entrepreneurs or craftsmen should make products with high artistic value that characterize the Indonesian culture. Research limitations – The limitation of this study lies in the sample selection, because consumers only know the product attributes that they know, in the next research, consumer selection should preferably be on consumers who know all the characteristics of the businesses being compared. Further research can also examine the segmentation, targeting and positioning policies of batik products in marketing their products in the community.

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