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Basketball speed

Damir Sekulic, Miran Pehar, Ante Krolo, Miodrag Spasic, Ognjen Uljevic, Julio Calleja-Gonzalez, Tine Sattler
The importance of agility in basketball is well known, but there is an evident lack of studies examining basketball-specific agility performances in high-level players. The aim of this study was to determine the reliability and discriminative validity of one standard agility-test (T-TEST), and four newly developed basketball-specific agility-tests, in defining playing-positions and performance-levels in basketball. The study comprised 110 high-level male basketball players (height: 194.92±8.09 cm; body mass: 89...
September 19, 2016: Journal of Strength and Conditioning Research
William T Tsushima, Andrea M Siu, Nozomi Yamashita, Ross S Oshiro, Nathan M Murata
This replication study re-examined the neuropsychological effects of participation in high and low contact youth sports. Modeled after a recently published investigation, two contact sport groups of participants ages 12 to 18 were formed based on the rate of concussion in their respective sport, with the assumption that more head impacts and neuropsychological effects occur in high contact sports that have a greater number of reported concussions as compared with low contact sports. The preseason baseline ImPACT neuropsychological test scores and symptom scores of non-concussed youth athletes in a High Contact Sport (football, n = 139) and a Low Contact Sport (basketball, baseball, soccer, wrestling, volleyball, paddling, and cheerleading, n = 57) were compared...
August 25, 2016: Applied Neuropsychology. Child
Carlos Puente, Javier Abián-Vicén, Francisco Areces, Roberto López, Juan Del Coso
The aim of this investigation was to analyze the physical and physiological demands of experienced basketball players during a real and competitive game. Twenty-five well-trained basketball players (8 guards, 8 forwards, 9 centers) played a competitive game on an outdoor court. Instantaneous running speeds, the number of body-impacts above 5-g as well as the number of accelerations and decelerations were assessed by means of a 15 Hz GPS accelerometer unit. Individual heart rate was also recorded using heart rate monitors...
July 26, 2016: Journal of Strength and Conditioning Research
F Martijn Verhoeven, Karl M Newell
The objective of this study was to investigate the coordination of a whole-body task (basketball free-throw) in which success in performance outcome can be achieved through a manifold of combinations of postural and movement trajectory configurations. Participants were healthy men (19-24years) with a range of skill levels that were tested for the accuracy of 50 basketball free-throws with both their dominant and non-dominant hand. The trial-to-trial variance in release parameters as well as postural stability of the shooter and synchronization of postural movement and ball release were strong predictors of performance, with non-elite shooters having a higher mean and variability of center-of-mass (COM) speed at the time of ball release...
October 2016: Human Movement Science
Teri J Hepler, Attila J Kovacs
BACKGROUND: The purpose of this study was to examine the Take the First (TTF) heuristic and decision outcomes in sports under conditions of no, mental, and physical stress. METHODS: Participants (N=68) performed 8 video decision-making trials under each of 3 stress conditions: no stress (counting backwards), mental stress (mental serial subtraction), and physical stress (running on treadmill at 13 RPE). Prior to each decision-making trial, participants were exposed to 30 seconds of stress...
July 8, 2016: Journal of Sports Medicine and Physical Fitness
Nima Mehran, Phillip N Williams, Robert A Keller, Lafi S Khalil, Stephen J Lombardo, F Daniel Kharrazi
BACKGROUND: Anterior cruciate ligament (ACL) injuries are significant injuries in elite-level basketball players. In-game statistical performance after ACL reconstruction has been demonstrated; however, few studies have reviewed functional performance in National Basketball Association (NBA)-caliber athletes after ACL reconstruction. PURPOSE: To compare NBA Combine performance of athletes after ACL reconstruction with an age-, size-, and position-matched control group of players with no previous reported knee injury requiring surgery...
May 2016: Orthopaedic Journal of Sports Medicine
Aaron T Scanlan, Jordan L Fox, Nattai R Borges, Ben J Dascombe, Vincent J Dalbo
PURPOSE: The influence of various factors on training load responses in basketball has received limited attention. This study aimed to examine the temporal changes and influence of cumulative training dose on training load responses and interrelationships during basketball activity. METHODS: Ten state-level, Australian, male, junior basketball players completed 4 x 10-min standardized bouts of simulated basketball activity using a circuit-based protocol. Internal training load was quantified using the session rating of perceived exertion (sRPE), summated heart rate zones (SHRZ), Banister's training impulse (TRIMP), and Lucia's TRIMP models...
August 24, 2016: International Journal of Sports Physiology and Performance
Kestutis Skucas, Vaida Pokvytyte
BACKGROUND: was to investigate the effect of short-term period, moderate intensity and high volume endurance training on physiological variables in elite wheelchair basketball players. METHODS: Eight wheelchair basketball players were examined. The subjects participated in a two-week intervention program of mainly two training types: wheelchair basketball and wheelchair driving endurance training. The subjects performed the continuously increasing cycling exercise (CCE) at the constant 60 rpm arm cranking speed at the beginning of the program and after two weeks of the program...
March 25, 2016: Journal of Sports Medicine and Physical Fitness
Debbie Van Biesen, Jennifer Mactavish, Katina McCulloch, Laetitia Lenaerts, Yves C Vanlandewijck
BACKGROUND: Previous research has shown that cognitive and motor skills are related. The precise impact of cognitive impairment on sport proficiency, however, is unknown. AIMS: This study investigated group and individual differences in cognitive profiles in a large cohort of track and field athletes, basketball players, swimmers and table tennis players with (N=468) and without (N=162) intellectual disabilities (ID). METHODS AND PROCEDURES: Based on the Cattell-Horn-Carroll Theory of Cognitive abilities, eight subtests were selected for inclusion in a generic cognitive test (GCT) to assess executive functions and cognitive abilities relevant to sport, i...
June 2016: Research in Developmental Disabilities
William T Tsushima, Olga Geling, Monica Arnold, Ross Oshiro
This exploratory study was designed to examine the neuropsychological effects of sports-related head trauma-specifically, repetitive subconcussive impacts or head blows that do not result in a diagnosable concussion. The researchers compared the Immediate Post-Concussion Assessment and Cognitive Testing (ImPACT) neurocognitive test scores of 2 groups of nonconcussed youth athletes (n = 282), grouped according to the frequency of concussions in their respective sports, with the assumption that more subconcussive impacts occur in sports in which there are more reported concussions...
2016: Applied Neuropsychology. Child
Pantelis Theodoros Nikolaidis, Abbas Asadi, Eduardo J A M Santos, Julio Calleja-González, Johnny Padulo, Hamdi Chtourou, Erika Zemkova
PURPOSE: the main purpose of this study was to examine the relationship of body mass (BM) status with running and jumping performances in young male basketball players. METHODS: basketball players (n=72, age 12.9±2.8 yrs), who were grouped into U-12 (9-12 yrs), U-15 (12-15 yrs) and U-18 (15-18 yrs), performed a battery of anthropometric, running and jumping tests. We examined differences among age groups, and between normal weight and overweight players. RESULTS: the results indicated significant and large differences among age groups in BM, height, body mass index (BMI), fat mass (FM), fat-free mass, speed, endurance, standing long jump, countermovement jump (CMJ), mean power in 30 s jumping test (Pmean) (p<0...
July 2015: Muscles, Ligaments and Tendons Journal
J Bangsbo
Performance in most sports is determined by the athlete's technical, tactical, physiological and psychological/social characteristics. In the present article, the physical aspect will be evaluated with a focus on what limits performance, and how training can be conducted to improve performance. Specifically how intensified training, i.e., increasing the amount of aerobic high-intensity and speed endurance training, affects physiological adaptations and performance of trained subjects. Periods of speed endurance training do improve performance in events lasting 30 s-4 min, and when combined with aerobic high-intensity sessions, also performance during longer events...
December 2015: Scandinavian Journal of Medicine & Science in Sports
Elisa De Stefani, Doriana De Marco, Maurizio Gentilucci
AIM: This study delineated how observing sports scenes of cooperation or competition modulated an action of interaction, in expert athletes, depending on their specific sport attitude. METHOD: In a kinematic study, athletes were divided into two groups depending on their attitude toward teammates (cooperative or competitive). Participants observed sport scenes of cooperation and competition (basketball, soccer, water polo, volleyball, and rugby) and then they reached for, picked up, and placed an object on the hand of a conspecific (giving action)...
2015: Frontiers in Psychology
Clyde Williams, Ian Rollo
The common pattern of play in 'team sports' is 'stop and go', i.e. where players perform repeated bouts of brief high-intensity exercise punctuated by lower intensity activity. Sprints are generally 2-4 s long and recovery between sprints is of variable length. Energy production during brief sprints is derived from the degradation of intra-muscular phosphocreatine and glycogen (anaerobic metabolism). Prolonged periods of multiple sprints drain muscle glycogen stores, leading to a decrease in power output and a reduction in general work rate during training and competition...
November 2015: Sports Medicine
Brandon J Erickson, Gregory L Cvetanovich, Ben U Nwachukwu, Leonardo D Villarroel, Johnny L Lin, Bernard R Bach, Frank M McCormick
BACKGROUND: Achilles tendon ruptures are one of the most commonly treated injuries by orthopaedic surgeons and general practitioners. Achilles tendon ruptures have classically been thought to affect the middle-aged "weekend warrior" participating in basketball, volleyball, soccer, or any other ground sport that requires speed and agility; however, with a more active elderly population, these tears are becoming more common in older patients. PURPOSE: To report trends in nonoperative and operative treatment of Achilles tendon tears in the United States from 2005 to 2011 in patients registered with a large Medicare database...
September 2014: Orthopaedic Journal of Sports Medicine
Oliver Gonzalo-Skok, Jorge Serna, Matthew R Rhea, Pedro J Marín
PURPOSE/BACKGROUND: Sprinting and jumping are two common and important components of high-level sport performance. The weight-bearing dorsiflexion test (WB-DF) and Star Excursion Balance Test (SEBT) are tools developed to identify athletes at risk for lower extremity injury and may be related to running and jumping performance among athletes. The purposes of the present study were: 1) to identify any relationships between functional movement tests (WB-DF and SEBT) and performance tests (jumping, sprinting and changing direction); 2) to examine any relationships between asymmetries in functional movements and performance tests...
October 2015: International Journal of Sports Physical Therapy
Georgiana Juravle, Charles Spence
We report four experiments on the speed of people's reactions to sensory stimulation while throwing and catching a basketball. Thirty participants participated in Experiment 1, split according to basketball expertise: none, intermediate (6years on average), or advanced (20years or more). The participants had to catch a bouncing basketball. The movement triggered a short tactile pulse in a tactor attached to their wrist to which they made a speeded vocal response (RT). The pulse could be presented either at rest, at two time-points during the reaching movement, or when the hand reached forward to catch the ball...
October 2015: Acta Psychologica
Luis Santos, Javier Fernández-Río, Benjamín Fernández-García, Markus D Jakobsen, Lucía González-Gómez, Oscar E Suman
The main goal of the study was to assess the effects of slackline training on the postural control system and jump performance of athletes. Twenty-five female basketball players were randomized into 2 groups: control (N = 12) and experimental (N = 13). The latter experienced a 6-week supervised slackline training (3 sessions per week, 5-9 minutes per session). Participants underwent center of pressure (CoP) testing through three 10-second tasks (bipedal, left leg, and right leg support) over firm and compliant surfaces with eyes open...
March 2016: Journal of Strength and Conditioning Research
Lindsay B Baker, Ian Rollo, Kimberly W Stein, Asker E Jeukendrup
Intermittent sports (e.g., team sports) are diverse in their rules and regulations but similar in the pattern of play; that is, intermittent high-intensity movements and the execution of sport-specific skills over a prolonged period of time (~1-2 h). Performance during intermittent sports is dependent upon a combination of anaerobic and aerobic energy systems, both of which rely on muscle glycogen and/or blood glucose as an important substrate for energy production. The aims of this paper are to review: (1) potential biological mechanisms by which carbohydrate may impact intermittent sport performance; (2) the acute effects of carbohydrate ingestion on intermittent sport performance, including intermittent high-intensity exercise capacity, sprinting, jumping, skill, change of direction speed, and cognition; and (3) what recommendations can be derived for carbohydrate intake before/during exercise in intermittent sports based on the available evidence...
July 2015: Nutrients
R M A van der Slikke, M A M Berger, D J J Bregman, A H Lagerberg, H E J Veeger
Knowledge of wheelchair kinematics during a match is prerequisite for performance improvement in wheelchair basketball. Unfortunately, no measurement system providing key kinematic outcomes proved to be reliable in competition. In this study, the reliability of estimated wheelchair kinematics based on a three inertial measurement unit (IMU) configuration was assessed in wheelchair basketball match-like conditions. Twenty participants performed a series of tests reflecting different motion aspects of wheelchair basketball...
September 18, 2015: Journal of Biomechanics
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