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https://www.readbyqxmd.com/read/29649160/eye-on-the-ball-table-tennis-as-a-pro-health-form-of-leisure-time-physical-activity
#1
Elżbieta Biernat, Sonia Buchholtz, Justyna Krzepota
Background: The article is devoted to an analysis of leisure-time (amateur) table tennis in Poland, its practitioners and the regularities of their activity. Methods: The study examined 12,406 persons in 4689 households (representative for the population). We used binary logistic regression and descriptive statistics in order to identify the patterns and determinants of table-tennis practice in Poland. Results: Table tennis is practised by 2.8% of population, and by 6.6% of physically active Poles. Among adults it is predominantly an occasional recreational game, not performed as a sport per se...
April 12, 2018: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/29624621/hormonal-and-neuromuscular-responses-during-a-singles-match-in-male-professional-tennis-players
#2
Álvaro López-Samanes, Jesús G Pallarés, Alberto Pérez-López, Ricardo Mora-Rodríguez, Juan F Ortega
We sought to measure the response of cortisol concentrations around a professional tennis match and its association with hydration status and neuromuscular performance. Nine professional male tennis players were tested in a rest day, and 2-week after, during the first match of a professional tournament played in a clay-court. Salivary concentrations of cortisol (SalCC) were measured in a resting day (9:00 am and 8:00 pm), at the match day (9:00 am and 8:00 pm) and immediately before and after the match. Hydration status was assessed before the match (urine specific gravity; USG) while fluid turnover was tracked during the match...
2018: PloS One
https://www.readbyqxmd.com/read/29620559/unilateral-lateral-epicondylalgia-demonstrates-a-pro-nociceptive-pain-profile-a-case-control-observational-study
#3
Leanne Bisset, Michelle Carty, Ashley Smith
OBJECTIVE: Lateral epicondylalgia (LE, tennis elbow) is characterised by both local tissue pathology and features indicative of secondary hyperalgesia. The aim of this study was to evaluate endogenous pain modulation characteristics in people with chronic LE, and to investigate the relationship between endogenous pain modulation and clinical characteristics. METHODS: This case control observational study included 25 participants with LE of at least 6 weeks' duration and 15 age-matched (±5▒y) healthy control participants, who were each evaluated in a single session...
April 3, 2018: Clinical Journal of Pain
https://www.readbyqxmd.com/read/29616887/upper-limb-muscle-activation-during-sports-video-gaming-of-persons-with-spinal-cord-injury
#4
Jeffrey P Jaramillo, M Elise Johanson, B Jenny Kiratli
OBJECTIVE: Video gaming as a therapeutic tool has largely been studied within the stroke population with some benefits reported in upper limb motor performance, balance, coordination, and cardiovascular status. To date, muscle activation of upper limb muscles in persons with spinal cord injuries (SCI) has not been studied during video game play. In this paper, we provide descriptive and comparative data for muscle activation and strength during gaming for players with tetraplegia and paraplegia, as well as, compare these results with data from traditional arm exercises (ie, biceps curl and shoulder press) with light weights which are commonly prescribed for a home program...
April 4, 2018: Journal of Spinal Cord Medicine
https://www.readbyqxmd.com/read/29616583/match-analyses-of-table-tennis-in-china-a-systematic-review
#5
Hui Zhang, Zheng Zhou, Qing Yang
This study is a systematic review of match analyses of table tennis that can be used for reference in China. Using the China National Knowledge Infrastructure (CNKI) as the search tool and "table tennis" as the keyword, we searched for all papers on table tennis published in Chinese core sports journals between 1980 and 2016. Then, we read through 1209 papers and divided them into different categories according to their publication types and main topics. Among them, 128 papers on match analyses met three inclusion criteria, and hence they were chosen as the reviewed studies...
April 4, 2018: Journal of Sports Sciences
https://www.readbyqxmd.com/read/29614035/investigating-the-nutritional-and-recovery-habits-of-tennis-players
#6
James A Fleming, Robert J Naughton, Liam D Harper
In this study, the nutritional and recovery habits of tennis players pre-, during, and post-match-play were investigated. Seventy tennis players completed a bespoke nutrition and recovery habits questionnaire, with questions related to the following areas: match preparation, intra-match nutritional habits, situation dependent variables, and post-match nutrition and recovery. On match day-1, the consumption of balanced meals consisting of carbohydrate (CHO), fat and protein, with some micronutrient considerations were reported by 51% of players...
April 3, 2018: Nutrients
https://www.readbyqxmd.com/read/29602955/isolated-rupture-of-the-accessory-soleus-tendon-an-original-and-confusing-picture
#7
Pierre-François Lintingre, Eric Pelé, Nicolas Poussange, Lionel Pesquer, Benjamin Dallaudière
The accessory soleus muscle is an uncommon congenital anatomical variant with a prevalence ranging from 0.7 to 5.5%. Although intermittent and exertional symptoms caused by this supernumerary muscle have been well documented, acute injuries have not. We present a case of an isolated rupture of the accessory soleus tendon with myotendinous retraction, mimicking clinically a "tennis leg." A 29-year-old woman sustained a hyperdorsal flexion injury of the right ankle with a severe and sudden pain in the middle part of the calf...
March 30, 2018: Skeletal Radiology
https://www.readbyqxmd.com/read/29599876/competition-field-perceptions-of-table-tennis-athletes-and-their-performance
#8
Ying-Chieh Liu, Ming-Yueh Wang, Chi-Yueh Hsu
The distinction between positive and negative perceptions is fundamental in perception models. The purpose of this study was to investigate the correlation between field perceptions of table tennis players and the outcome (net result) during the matches in a competition. Experimental data were collected from 10 elite table tennis players and analysed. The results addressed the following three competition field perceptions: (1) before the service, the player's positive perceptions had significant effect on the positive outcome (winning rate) of that service; (2) the perception after the net result of the previous service increased the positive outcome of the next service, and (3) the player's positive/negative perception during the matches affected the win/loss outcome of that competition...
March 2018: Journal of Human Kinetics
https://www.readbyqxmd.com/read/29589507/development-content-validity-and-test-retest-reliability-of-the-lifelong-physical-activity-skills-battery-in-adolescents
#9
Ryan M Hulteen, Lisa M Barnett, Philip J Morgan, Leah E Robinson, Christian J Barton, Brian H Wrotniak, David R Lubans
Numerous skill batteries assess fundamental motor skill (e.g., kick, hop) competence. Few skill batteries examine lifelong physical activity skill competence (e.g., resistance training). This study aimed to develop and assess the content validity, test-retest and inter-rater reliability of the "Lifelong Physical Activity Skills Battery". Development of the skill battery occurred in three stages: i) systematic reviews of lifelong physical activity participation rates and existing motor skill assessment tools, ii) practitioner consultation and iii) research expert consultation...
March 28, 2018: Journal of Sports Sciences
https://www.readbyqxmd.com/read/29579067/audio-based-performance-evaluation-of-squash-players
#10
Katalin Hajdú-Szücs, Nóra Fenyvesi, József Stéger, Gábor Vattay
In competitive sports it is often very hard to quantify the performance. A player to score or overtake may depend on only millesimal of seconds or millimeters. In racquet sports like tennis, table tennis and squash many events will occur in a short time duration, whose recording and analysis can help reveal the differences in performance. In this paper we show that it is possible to architect a framework that utilizes the characteristic sound patterns to precisely classify the types of and localize the positions of these events...
2018: PloS One
https://www.readbyqxmd.com/read/29578375/a-kinematic-comparison-between-long-line-and-cross-court-top-spin-forehand-in-competitive-table-tennis-players
#11
Ivan Malagoli Lanzoni, Sandro Bartolomei, Rocco Di Michele, Silvia Fantozzi
The aim of the present study was to compare the biomechanical characteristics of the table tennis top spin shot when played cross-court (CC) or long-line (LL) in competitive table tennis players. Seven national level players respectively completed 10 long-line and 10 cross-court top spin shots responding to a standard ball machine. A stereophotogrammetric system was used to track body segments while executing the motion. Significantly more flexed right knee and elbow angles were measured at the moment of maximum velocity of the racket (MMV) in LL...
March 26, 2018: Journal of Sports Sciences
https://www.readbyqxmd.com/read/29564843/upper-extremity-functional-performance-tests-reference-values-for-overhead-athletes
#12
Dorien Borms, Ann Cools
This study aimed to provide an age, gender and sport-based normative database for three functional shoulder tests: Y Balance Test - Upper Quarter (YBT-UQ), Closed Kinetic Chain Upper Extremity Stability Test (CKCUEST), and Seated Medicine Ball Throw (SMBT). A second aim was to discuss gender, age and sports differences. Finally, correlation between tests was evaluated. Overhead athletes (106 male, 100 female) between 18 and 50 years old and from three different sports (volleyball, tennis, handball) performed all functional tests...
March 21, 2018: International Journal of Sports Medicine
https://www.readbyqxmd.com/read/29543111/table-tennis-match-analysis-a-review
#13
Michael Fuchs, Ruizhi Liu, Ivan Malagoli Lanzoni, Goran Munivrana, Gunter Straub, Sho Tamaki, Kazuto Yoshida, Hui Zhang, Martin Lames
In table tennis, many different approaches to scientific founded match analysis have been developed since the first ones in the 1960s. The aim of this paper is to give a review on some of the most acknowledged methods of match analysis in table tennis. The first chapter presents a historical overview of match analysis from all over the world. The second part reviews different approaches to match analysis in more detail, using the performance analysis classification of theoretical and practical performance analysis...
March 15, 2018: Journal of Sports Sciences
https://www.readbyqxmd.com/read/29529951/effects-of-tennis-play-on-executive-function-in-6-11-year-old-children-a-12-month-longitudinal-study
#14
Toru Ishihara, Masao Mizuno
The present study aimed to assess the effects of 12 months of frequent tennis play on executive functions and the relationships of daily moderate-to-vigorous physical activity (MVPA), physical competence, and enjoyment of playing tennis to executive functions in children. Thirty-two children (6-11 years old) who had regularly played tennis (once a week; mean = 3 years, range = 0-6 years) before the study were enrolled in a 12-month intervention. Participants were allocated into two groups: low-dose (maintain current frequency of tennis play, N = 19) or high-dose (increased frequency of tennis play to four times per week, N = 13)...
March 13, 2018: European Journal of Sport Science
https://www.readbyqxmd.com/read/29524909/shoulder-range-of-motion-and-strength-in-young-competitive-tennis-players-with-and-without-history-of-shoulder-problems
#15
Benoît Gillet, Mickaël Begon, Marine Diger, Christian Berger-Vachon, Isabelle Rogowski
OBJECTIVE: To assess the effect of a history of shoulder problems on the shoulder flexibility and strength in young competitive tennis players. DESIGN: Cross-sectional study. PARTICIPANTS: Ninety-one competitive and asymptomatic tennis players aged between 8 and 15 years old were divided into two groups according to the presence or absence of a history of shoulder problems. OUTCOME MEASURES: Glenohumeral joint ranges of motion and the strength of eight shoulder muscles were bilaterally assessed...
February 2, 2018: Physical Therapy in Sport
https://www.readbyqxmd.com/read/29524640/the-sport-expert-s-attention-superiority-on-skill-related-scene-dynamic-by-the-activation-of-left-medial-frontal-gyrus-an-erp-and-loreta-study
#16
Mengyang He, Changzhu Qi, Yang Lu, Amanda Song, Saba Z Hayat, Xia Xu
Extensive studies have shown that a sports expert is superior to a sports novice in visually perceptual-cognitive processes of sports scene information, however the attentional and neural basis of it has not been thoroughly explored. The present study examined whether a sport expert has the attentional superiority on scene information relevant to his/her sport skill, and explored what factor drives this superiority. To address this problem, EEGs were recorded as participants passively viewed sport scenes (tennis vs...
March 7, 2018: Neuroscience
https://www.readbyqxmd.com/read/29523911/a-new-anatomical-insight-into-the-aetiology-of-lateral-trunk-of-suprascapular-nerve-neuropathy-isolated-infraspinatus-atrophy
#17
Anna Fabis-Strobin, Miroslaw Topol, Jaroslaw Fabis, Kryspin Niedzielski, Michal Podgorski, Lukasz Strobin, Michal Polguj
INTRODUCTION: Although the pathomechanism of isolated infraspinatus atrophy (ISA) in throwing sports is known to be traction, it is unclear why only some players are affected. One likely explanation is that the infraspinatus pulling force exerted by its contracture generate the compressive resultant component force (Fn) compressing the lateral trunk of the suprascapular nerve (LTSN) against the edge of scapular spine. This paper makes two key assumptions (1) the course of LTSN in relation to the scapular spine, defined as the suprascapular-scapular spine angle (SSSA) is the key individual anatomical feature influencing the Fn magnitude, and thus potentially ISA development (2) SSSA is correlated with scapular notch type...
March 9, 2018: Surgical and Radiologic Anatomy: SRA
https://www.readbyqxmd.com/read/29523053/the-evaluation-of-changes-of-angles-in-selected-joints-during-topspin-forehand-in-table-tennis
#18
Ziemowit Bańkosz, Sławomir Winiarski
The aims of this study were to evaluate movement patterns of topspin forehand, to define the main principles of performing this shot, and to determine the essential differences in individual types of topspin forehand. In total, 10 female high-level athletes participated in this study. The BTS analysis system was used with a novel model for the range-of-motion measurement. An acoustic sensor was attached to the racket for identification of a ball-racket contact. Players, performing topspin forehand, attempt to achieve maximal racket velocity based on the principles of proximal-to-distal sequences and summation of speed with a stretch-shortening character of cycle...
March 9, 2018: Motor Control
https://www.readbyqxmd.com/read/29521171/motor-performance-body-fatness-and-environmental-factors-in-preschool-children
#19
António M Antunes, Duarte L Freitas, José Maia, Donald Hedeker, Élvio R Gouveia, Martine Thomis, Johan Lefevre, Lisa M Barnett
The first aim of this study was to investigate the relationship between motor performance and body fatness among 3- to 5-year-old children. The second aim was to assess whether this relationship works similarly for boys and girls. We also investigated whether socioeconomic status (SES) and geographical area when children are aged 3 years old predicts the motor performance of 4 and 5-yr-old children. Motor performance was assessed through the Preschool Test Battery, while body fatness was estimated through body mass index (BMI)...
March 9, 2018: Journal of Sports Sciences
https://www.readbyqxmd.com/read/29509097/cognitive-bias-for-the-distribution-of-ball-landing-positions-in-amateur-tennis-players-cognitive-bias-for-the-motor-variance-in-tennis
#20
Hiroyuki Yamamoto, Masahiro Shinya, Kazutoshi Kudo
This study aimed to investigate whether the isotropy bias (estimating one's own motor variance as an approximately circular distribution rather than a vertically elongated distribution) arises in tennis players for the estimation of the two-dimensional variance for forehand strokes in tennis (Experiment 1), as well as the process underlying the isotropy bias (Experiment 2). In Experiment 1, 31 tennis players were asked to estimate prospectively their distribution of ball landing positions. They were then instructed to hit 50 forehand strokes...
March 6, 2018: Journal of Motor Behavior
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