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Basket ball

Jean-Claude Pineau
BACKGROUND: The purpose of this study was to cross-validate and demonstrate how adult stature can be predicted in 13-year-old basket-ball players by using a new reference specific growth curve obtained from chronological age, and maturity of sedentary boys. METHODS: The prediction of adult stature of young male basketball players was established from the results of a longitudinal study in which we developed from 125 sedentary boys aged from 12 to 17.5 years new growth curves using chronological and biological maturation...
July 18, 2018: Journal of Sports Medicine and Physical Fitness
Mariëtte J J van Maarseveen, Raôul R D Oudejans
In this study, we examined the effects of a defender contesting jump shots on performance and gaze behaviors of basketball players taking jump shots. Thirteen skilled youth basketball players performed 48 shots from about 5 m from the basket; 24 uncontested and 24 contested. The participants wore mobile eye tracking glasses to measure their gaze behavior. As expected, an approaching defender trying to contest the shot led to significant changes in movement execution and gaze behavior including shorter shot execution time, longer jump time, longer ball flight time, later final fixation onset, and longer fixation on the defender...
2018: Frontiers in Psychology
Paul Elvers, Jochen Steffens
Listening to music before, during, or after sports is a common phenomenon, yet its functions and effects on performance, cognition, and behavior remain to be investigated. In this study we present a novel approach to the role of music in sports and exercise that focuses on the notion of musical self-enhancement (Elvers, 2016). We derived the following hypotheses from this framework: listening to motivational music will (i) enhance self-evaluative cognition, (ii) improve performance in a ball game, and (iii) evoke greater risk-taking behavior...
2017: Frontiers in Psychology
Dariusz Zapała, Piotr Francuz, Ewelina Zapała, Natalia Kopiś, Piotr Wierzgała, Paweł Augustynowicz, Andrzej Majkowski, Marcin Kołodziej
The challenges of research into brain-computer interfaces (BCI) include significant individual differences in learning pace and in the effective operation of BCI devices. The use of neurofeedback training is a popular method of improving the effectiveness BCI operation. The purpose of the present study was to determine to what extent it is possible to improve the effectiveness of operation of sensorimotor rhythm-based brain-computer interfaces (SMR-BCI) by supplementing user training with elements modifying the characteristics of visual feedback...
March 2018: Applied Psychophysiology and Biofeedback
Hamidreza Taheri, Davoud Fazeli, Sogand Poureghbali
We investigated the effect of practice variability through execution redundancy in skilled and novice basketball players on free throw skills. Twelve skilled basketball players and 12 novices (mean age = 25.4 years, SD = 4.3) were divided into four groups (skilled constant, skilled variable, novice constant, and novice variable). After a pretest, participants practiced free throw action. The variable groups threw the ball over an obstacle of varying heights on each trial in random order, whereas the obstacle's height was fixed for the constant groups...
April 2017: Perceptual and Motor Skills
Christos Marmarinos, Nikolaos Apostolidis, Nikolaos Kostopoulos, Alexandros Apostolidis
Team offense in basketball games consists of a set of offensive actions carried out with the cooperation of two or more players. Of these actions, the most commonly used in the last decade is the on-ball screen called the "pick and roll." The aim of this study was to analyze all of the pick and rolls conducted in the Euroleague championship from all of the 24 participating teams and to investigate the possible relationships between success in the pick and roll and overall success of the teams. For this purpose, 12,376 pick and rolls from 502 matches were analyzed and classified in categories according to the end result of the offensive possession...
June 1, 2016: Journal of Human Kinetics
Alyssa N Wilson, Tyler S Glassford, Sarah M Koerkenmeier
The present study examined response effort during resurgence tests. Six children were trained to place balls in baskets that were placed either close (.0254 m) or far away (1.829 m or .9 m). Resurgence was assessed using a linear strip design, where responses were reinforced on a variable-interval 10-s schedule or put on extinction. During resurgence tests, minimal to low rates of resurgence associated with the greater response effort (i.e., placing a ball in the basket further way) were observed across all six participants, regardless of distance...
June 2016: Behavior Analysis in Practice
Ka I Ip, Lucy Shih-Ju Hsu, Maria M Arredondo, Twila Tardif, Ioulia Kovelman
Can bilingual exposure impact children's neural circuitry for learning to read? To answer this question, we investigated the brain bases of morphological awareness, one of the key spoken language abilities for learning to read in English and Chinese. Bilingual Chinese-English and monolingual English children (N = 22, ages 7-12) completed morphological tasks that best characterize each of their languages: compound morphology in Chinese (e.g. basket + ball = basketball) and derivational morphology in English (e...
September 2017: Developmental Science
A I Garner
"You didn't keep your eye on the ball," the coach shouts to the split end whom he removes from the game when he drops a pass, or to the quarterback who has just thrown the ball short and into the waiting hands of a defensive halfback. "Where were you looking?" asks the basketball coach of the player who has missed an easy pass under the basket. "Coach, I just didn't see it coming!" is the anguished reply.
April 1977: Physician and Sportsmedicine
Hampig Raphael Kourie, Fouad Aoun
New concepts of trial design are being developed based on biomarkers, namely basket and umbrella trials. Basket trials appear optimally positioned to evaluate new molecular markers for testicular germ cell tumors, a rare heterogeneous disease with relatively few molecular alterations. However, not uncommonly, the "balls" fall outside the "basket". In this short communication, we discussed the different causes limiting the inclusion of TGCT in basket trials and we proposed a new design for trials suitable for this malignancy...
August 2016: Investigational New Drugs
Pedro T Esteves, Pedro Silva, Luís Vilar, Bruno Travassos, Ricardo Duarte, Jorge Arede, Jaime Sampaio
This study aimed to analyse how youth basketball players explored numerical overloads during shot attempts by measuring their space occupation across specific court areas. Four process-tracing variables measured how the number of attackers (NA), number of defenders (ND), interpersonal distance between attacker and the closest defender (ID) and distance between attacker and the basket (DBkt) impacted on the performance outcome (converted shot; missed shot; ball possession lost). Ten competitive games involving 13 U14 teams were video recorded and players' displacements were digitised...
August 2016: Journal of Sports Sciences
Ehud Rath, Eyal Amar, Ran Doron, Dean K Matsuda
Hip arthroscopy is an important diagnostic and therapeutic tool in the management of synovial chondromatosis. Removal of osteochondral fragments (OCFs) from the central and peripheral compartments is crucial for the relief of mechanical symptoms and subsequent joint destruction. Direct access to the central compartment is often limited because of the ball-and-socket morphology and limitation of traction. We present our surgical technique for removing OCFs and a new method for the removal of a large loose body using a nitinol stone retrieval basket...
December 2014: Arthroscopy Techniques
Yasser Ahmady Safoury, Mohamed Raffat Atteya
Eleven patients with unstable extra-articular fractures of the base of the first metacarpal with angulations more than 30° uncorrected by closed reduction were treated by open reduction and tension band fixation. Ten men and one woman with a mean age of 36.18 years. Fall on a stretched hand was the cause in eight while a punch in two and trauma from a basket ball in one. The mean follow up period was 12.45 months. All fractures united within a mean of 4.36 weeks. Patients were evaluated by subjective and objective criteria: the mean of pain was 0...
December 2014: Journal of Hand and Microsurgery
J Cordes, F Nguyen, W Pinkowski, D Jocham
BACKGROUND: Complications after endoscopic retrieval of kidney and ureter stones are obviously related to the size of the stones as well as the experience of the surgeon and other factors. During the procedure it is sometimes difficult for surgeons to estimate stone size and therefore give prognostic advises. The visual perception of the stone size depends on the shape, colour, distance to the renoscope and dilatation of the ureter. This is the so-called binding problem, because shape, color and direction of motion are processed separately by different population of optical neurons...
May 2014: Aktuelle Urologie
Feng Yi, Jackson Ball, Kurt E Stoll, Vaishali C Satpute, Samantha M Mitchell, Jordan L Pauli, Benjamin B Holloway, April D Johnston, Neil M Nathanson, Karl Deisseroth, David J Gerber, Susumu Tonegawa, J Josh Lawrence
Parvalbumin-containing (PV) neurons, a major class of GABAergic interneurons, are essential circuit elements of learning networks. As levels of acetylcholine rise during active learning tasks, PV neurons become increasingly engaged in network dynamics. Conversely, impairment of either cholinergic or PV interneuron function induces learning deficits. Here, we examined PV interneurons in hippocampus (HC) and prefrontal cortex (PFC) and their modulation by muscarinic acetylcholine receptors (mAChRs). HC PV cells, visualized by crossing PV-CRE mice with Rosa26YFP mice, were anatomically identified as basket cells and PV bistratified cells in the stratum pyramidale; in stratum oriens, HC PV cells were electrophysiologically distinct from somatostatin-containing cells...
August 15, 2014: Journal of Physiology
Karl A McCreadie, Damien H Coyle, Girijesh Prasad
Imagination of movement can be used as a control method for a brain-computer interface (BCI) allowing communication for the physically impaired. Visual feedback within such a closed loop system excludes those with visual problems and hence there is a need for alternative sensory feedback pathways. In the context of substituting the visual channel for the auditory channel, this study aims to add to the limited evidence that it is possible to substitute visual feedback for its auditory equivalent and assess the impact this has on BCI performance...
May 2014: IEEE Transactions on Neural Systems and Rehabilitation Engineering
Fei Zhao, Barry Bardsley
OBJECTIVES: This study investigated real-ear acoustical characteristics in terms of the sound pressure levels (SPLs) and frequency responses in situ generated from golf club drivers at impact with a golf ball. The risk of hearing loss caused by hitting a basket of golf balls using various drivers was then estimated. DESIGN: Cross-sectional study. SETTING: The three driver clubs were chosen on the basis of reflection of the commonality and modern technology of the clubs...
2014: BMJ Open
Donghyun Ryu, Bruce Abernethy, David L Mann, Jamie M Poolton, Adam D Gorman
The purpose of this study was to investigate the role of central and peripheral vision in expert decision making. A gaze-contingent display was used to selectively present information to the central and peripheral areas of the visual field while participants performed a decision-making task. Eleven skilled and eleven less-skilled male basketball players watched video clips of basketball scenarios in three different viewing conditions: full-image control, moving window (central vision only), and moving mask (peripheral vision only)...
2013: Perception
Andrea Viggiano, Sergio Chieffi, Domenico Tafuri, Giovanni Messina, Marcellino Monda, Bruno De Luca
Asymmetrically placed visual distractors are known to cause a lateral bias in the execution of a movement directed toward a target. The aim of the present experiment was to verify if the trajectory of the ball and the trajectory of the jump for a basket-shot can be affected by the sole position of a second player, who stays in front of the shooting player in one of three possible positions (centre, left or right) but too far to physically interfere with the shot. Young basketball players were asked to perform 60 shots at 6...
2014: Journal of Sports Sciences
Nadja Podmenik, Bojan Leskošek, Frane Erčulj
Our study examined whether the introduction of a smaller and lighter basketball (no. 6) affected the accuracy of female basketball players' shots at the basket. The International Basketball Federation (FIBA) introduced a size 6 ball in the 2004/2005 season to improve the efficiency and accuracy of technical elements, primarily shots at the basket. The sample for this study included 573 European female basketball players who were members of national teams that had qualified for the senior women's European championships in 2001, 2003, 2005 and 2007...
March 2012: Journal of Human Kinetics
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