scholarly journals The impact of descending pyramid training size in development of the special strength of the arms and the accuracy of set shot in the wheelchair basketball player

Author(s):  
Ahmed Amer Mohammed Ali
Author(s):  
Małgorzata Jekiełek ◽  
Angelika Sosulska ◽  
Grzegorz Mańko ◽  
Jarosław Jaszczur-Nowick

Sport of the disabled has been becoming more and more popular for several years, and wheelchair basketball is one of the most popular disciplines among the disabled. However, playing sports is connected with the possibility of injuries and pain in people training a given discipline. The aim of this study is to determine the occurrence of injuries and to identify most commonly injuries in athletes practicing basketball in wheelchairs. A literature review was conducted in Embase and Medline PubMed databases. Basic search terms are: shoulder injury OR shoulder pain OR upper limb disease OR upper limb disorders OR upper limb pain AND basketball OR basketball player OR wheelchair sport OR wheelchair user OR wheelchair athlete OR wheelchair basketball OR disabled sport OR disabled persons.Results: 511 non-duplicate results were found. At the stage of the analysis of titles and abstracts, 483 were rejected and 28 were qualified for the analysis of full texts. The review included 2 that met all the criteria. The topic is not discussed in large numbers in the literature and requires further research specifically focused on the prevention of shoulder injury as well as assessment of the risk of damage to individual elements that make up the shoulder joint and surrounding structures.


PLoS ONE ◽  
2021 ◽  
Vol 16 (1) ◽  
pp. e0244257
Author(s):  
John W. Francis ◽  
Alun J. Owen ◽  
Derek M. Peters

The purposes of this study were to (i) develop a field-goal shooting performance analysis template and (ii) explore the impact of each identified variable upon the likely outcome of a field-goal attempt using binary logistic regression modelling in elite men’s wheelchair basketball. First, a field-goal shooting performance analysis template was developed that included 71 Action Variables (AV) grouped within 22 Categorical Predictor Variables (CPV) representing offensive, defensive and game context variables. Second, footage of all 5,105 field-goal attempts from 12 teams during the men’s 2016 Rio De Janeiro Paralympic Games wheelchair basketball competition were analysed using the template. Pearson’s chi-square analyses found that 18 of the CPV were significantly associated with field-goal attempt outcome (p < 0.05), with seven of them reaching moderate association (Cramer’s V: 0.1–0.3). Third, using 70% of the dataset (3,574 field-goal attempts), binary logistic regression analyses identified that five offensive variables (classification category of the player, the action leading up to the field-goal attempt, the time left on the clock, the location of the shot, and the movement of the player), two defensive variables (the pressure being exerted by the defence, and the number of defenders within a 1-meter radius) and 1 context variable (the finishing position of the team in the competition) affected the probability of a successful field-goal attempt. The quality of the developed model was determined acceptable (greater than 65%), producing an area under the curve value of 68.5% when the model was run against the remaining 30% of the dataset (1,531 field-goal attempts). The development of the model from such a large sample of objective data is unique. As such it offers robust empirical evidence to enable coaches, performance analysts and players to move beyond anecdote, in order to appreciate the potential effect of various and varying offensive, defensive and contextual variables on field-goal success.


2019 ◽  
pp. 378-387
Author(s):  
Paul E. Yeatts ◽  
Ronald Davis ◽  
Jun Oh ◽  
Gwang-Yon Hwang

Participation in physical activity has been shown to improve components of psychological well-being (i.e., affect). Programs such as the Warrior Games have been designed to promote physical activity in wounded military personnel. However, sport competition typically yields a winner and a loser (i.e., game outcome). The experience of a win or a loss may affect how wounded athletes respond to game outcome. Therefore, the purpose of this study was to investigate the affective changes (positive affect, negative affect, tranquility, and fatigue) according to game outcome in a sample of wounded military wheelchair basketball players participating in a weekend tournament. The results indicated that the participants who experienced a win reported significantly higher positive affect and tranquility and significantly lower negative affect than those experiencing a loss. These findings have important implications for wounded veteran athletes, as well as coaches and administrative personnel.


2021 ◽  
pp. 101750
Author(s):  
Vangelis Sarlis ◽  
Vasilis Chatziilias ◽  
Christos Tjortjis ◽  
Dimitris Mandalidis

2018 ◽  
Vol 4 (63) ◽  
Author(s):  
Frane Erčulj ◽  
Matej Supej

This study basically aimed to establish how a gradual increase in effort (fatigue) affects the jump height and accuracy of shots at the basket. For this purpose, an elite basketball player, Primož Brezec, performed seven series of 20 shots from a distance of 7.24 metres. All shots were executed in four-second intervals and the height of each jump shot was measured. The accuracy of shots was established on the basis of the number of goals and distance from the centre of the ball to the centre of the rim of the basket. Thus, for each shot a kinematic analysis was applied using the APAS system to calculate the parabolas of ball fl ight and the distance between the two points mentioned. During an individual series of shots the subject player performed a special basketball motor task consisting of running, a defensive slide and jumps. The effort gradually increased with each motor task and, in the meantime, the subject’s heart rate and concentration of lactates in his blood were measured. The results of the study show that the jump height decreases on average with each series of shots (with the exception of series two) and that the differences between the series are statistically signifi cant (p < 0.01). There were no statistically signifi cant differences between the individual series of shots in terms of shooting accu-racy and / or number of goals. The number of goals decreased drastically in the last series, i. e. in the conditions of maximum fatigue (heart rate: 197 beats / min, lactate concentration: 9.7 mmol / l). The average distance between the centre of the ball and the centre of the rim in the plane of the rim ranges between 13.5 and 16.6 cm, however, it does not increase with fatigue.Keywords: jump shot, kinematic analysis, accuracy, jump height, fatigue.


2017 ◽  
Vol 96 (2) ◽  
pp. 101-108 ◽  
Author(s):  
Sileno da Silva Santos ◽  
Chandramouli Krishnan ◽  
Angelica Castilho Alonso ◽  
Júlia Maria D’Andréa Greve

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