Dynamic Analysis and Modeling Simulation of Distance and Speed of a Solid Sphere

2014 ◽  
Vol 608-609 ◽  
pp. 241-245
Author(s):  
Yao Lei Li ◽  
Cong Xian Wang ◽  
Xin Yuan Ye
Keyword(s):  
Dynamic Analysis ◽  
Solid Sphere ◽  
Basketball Players ◽  
Physical Quality ◽  
Modeling Simulation ◽  
Contrast Analysis ◽  
Complex Technology ◽  
Basketball Coaches ◽  
Medicine Ball

Relative to the sports that have complex technology, basketball sport not only needs the basketball players have very good physical quality and accurate skill of passing, shooting a ball if you want to achieve process of good passing, dribbling, pitching and so on. And relative to the research angle of current way of raising level of basketball fast break and pass, the medicine ball training angle is insufficient, therefore this paper departed from the basis literature of technical of medicine ball training and basketball fast break and pass, and had research according to the universities basketball class, selected two classes to have contrast analysis of the tradition and medicine ball training, and got strong guidance of medicine ball training contributes to the improve distance and speed of basketball fast break and pass, this helps basketball coaches who can effectively use this method to improve basketball fast break and pass technology of the players, and improve the players' physical quality.

scholarly journals Muscular Strength Spurts in Adolescent Male Basketball Players: The INEX Study

2021 ◽  
Vol 18 (2) ◽  
pp. 776
Author(s):  
Eduardo Guimarães ◽  
José A. R. Maia ◽  
Mark Williams ◽  
Filipa Sousa ◽  
Eduardo Santos ◽  
...  
Keyword(s):  
Muscular Strength ◽  
Handgrip Strength ◽  
Height Velocity ◽  
Adolescent Male ◽  
Strength Development ◽  
Maximal Velocity ◽  
Countermovement Jump ◽  
Basketball Players ◽  
Squat Jump ◽  
Medicine Ball

Although successful performance in basketball requires high levels of muscular strength during adolescence, its development is confounded by the effects of normal growth. We examine the timing, intensity and sequence of muscular strength according to biological age (years from peak height velocity (PHV)) and hypothesize that young basketball players attain their peak muscular strength spurts around PHV. A total of 160 adolescent male basketballers, aged 11–15 years, were followed bi-annually over 3 consecutive years. The years from attainment of PHV and peak weight velocity (PWV) were estimated and five muscular strength measures (sit-ups, handgrip, seated medicine ball throw, squat jump and countermovement jump) were aligned to years from PHV in 3-month intervals. Strength velocities were estimated using a non-smooth mathematical model. The mean ages at-PHV and at-PWV were 13.90 ± 1.40 years and 13.90 ± 1.79 years, respectively. Maximal velocity in sit-ups was attained 6 months prior to attainment of PHV (intensity = 10.69 repetitions·year−1), whereas maximal velocity in squat jump occurred 6 months after-PHV (intensity = 3.93 cm·year−1). Handgrip strength, seated medicine ball throw and countermovement jump maximal velocity peaked at-PHV (intensity = 8.47 kgf·year−1, intensity = 0.75 m·year−1, intensity = 5.59 cm·year−1, respectively). In general, maximal velocity spurts did not differ in their timing, with the velocities reaching a peak concurrent with PHV and PWV or within 6 months of its attainment. Basketball coaches, as well as strength and conditioning trainers, should consider individual differences in strength development and be aware of rapid periods of growth in stature when planning and designing muscular strength training regimes.

scholarly journals Factors Influencing College Selection by NCAA Division III Men's Basketball Players

2020 ◽  
Vol 6 (1) ◽  
pp. 32-51
Author(s):  
Brett A Nichols ◽  
Mark A Smith ◽  
Megan B Stellino
Keyword(s):  
Financial Aid ◽  
Selection Process ◽  
Ncaa Division Iii ◽  
Influential Factors ◽  
College Selection ◽  
Division Iii ◽  
Basketball Players ◽  
Men's Basketball ◽  
Basketball Coaches ◽  
Type Of School

National Collegiate Athletic Association (NCAA) Division III basketball, coaches are often faced with the challenge of stretching resources to successfully recruit players who will represent the institution without the benefit of athletic scholarships. Having a better grasp of the factors that influence the college selection of NCAA Division III players might assist these coaches in more efficiently maximizing their resources. The purposes of this study were to (a) examine specific factors which influence why DIII basketball players made their choice to attend a particular school, (b) determine if there were differences based upon the type of school attended, and (c) examine whether there were categorical factors that differed on the basis of a players recruitment, year in school, race/ethnicity, playing status, or financial aid status.   Using the revised Influential Factors Survey for Student Athletes (IFSSA-R; Pauline, 2010), 503 DIII men’s basketball players were surveyed. Participant responses indicated that ‘career opportunities’ was the most vital item affecting college selection. With regard to the five categorical factors (academic, athletic, coaching staff, financial aid, and social atmosphere) academic factors were also found to be important.   Analyses revealed significant (p < .05) differences as determined by type of school for the athletic, academic, and financial aid subscales.  Results of the study will provide useful information for DIII men’s basketball coaches and college administrators throughout various points in the recruiting and college selection process.  Keywords: coaching, recruiting, basketball, NCAA Division III, college selection

scholarly journals Impact of Low Volume Velocity-Controlled vs. Repetition to Failure Resistance Training Session on Measures of Explosive Performance in a Team of Adolescents Basketball Players

Sports ◽  
2021 ◽  
Vol 9 (8) ◽  
pp. 115
Author(s):  
Ott-Erik Kalmus ◽  
Mehis Viru ◽  
Brent Alvar ◽  
Fernando Naclerio
Keyword(s):  
Vertical Jump ◽  
Training Session ◽  
Maximum Velocity ◽  
Adolescent Male ◽  
Velocity Control ◽  
Basketball Players ◽  
Explosive Performance ◽  
Volume Resistance ◽  
Low Volume ◽  
Medicine Ball

This study examined the short-term effects (post 6 h and 24 h) of two equated (70% of 1 repetition maximum (1-RM)) low volume resistance exercise protocols: (i) velocity-controlled (VC) and (ii) repetition to failure (RTF) on upper and lower body performance in competitive adolescent male basketball players. Following a randomized, counterbalanced design, ten participants (age: 16 ± 0.5 years) completed either VC or RTF separated by 72 h. VC consisted of 4 sets of 5 explosive repetitions (≥90% of the maximum velocity). RTF involved 2 sets of 10-RM (with no velocity control). Measurements of 20-m sprint, countermovement jump (CMJ) and medicine ball toss (MBT) were collected before (baseline), post 6 h and 24 h after either VC or RTF. Increases of CMJ post 6 h (VC, +6.7%; RTF, +2.4%) and MBT post 24 h (VC, +4.6%; RTF, +4.2%) were observed after both VC and RTF. Only VC potentiated CMJ after 24 h (+2.0 ± 2.3%). No other changes or differences between protocols were observed. Performing a low volume exercise protocol, either VC or RTF, induced similar potentiation effects on the vertical jump (post 6 h) and medicine ball toss (post 24 h) in adolescent basketball players. Only the VC protocol was still effective to potentiate CMJ performance after 24 h.

scholarly journals 3D MODELING, SIMULATION AND ANALYSIS OF ANTI-VIBRATION BORING BAR

2021 ◽  
Vol 3 ◽  
pp. 310-313
Author(s):  
Sabi Sabev ◽  
Plamen Kasabov
Keyword(s):  
Finite Elements ◽  
Dynamic Analysis ◽  
3D Modeling ◽  
Virtual Prototype ◽  
Finite Elements Method ◽  
Design Stage ◽  
Boring Bar ◽  
Modeling Simulation ◽  
Cae System

This study presents the capabilities of the engineering dynamic analysis according to the Finite Elements Method (FEM), demonstrated on a 3D virtual prototype of a part "Anti-vibration boring bar" for lathe. The analysis is performed with help of CAE system Ansys. The modal frequencies are determined which are necessary for optimizing the constructive parameters of the product during the design stage.

scholarly journals Contributions of body fat, fat free mass and arm muscle area in athletic performance of wheelchair basketball players

Motricidade ◽  
2017 ◽  
Vol 13 (2) ◽  
pp. 36 ◽  
Author(s):  
Lúcia Oliveira ◽  
Saulo Oliveira ◽  
Fernando Guimarães ◽  
Manoel Costa
Keyword(s):  
Body Fat ◽  
Athletic Performance ◽  
Anaerobic Power ◽  
Fat Free Mass ◽  
Muscular Tissue ◽  
Wheelchair Basketball ◽  
Basketball Players ◽  
Muscle Area ◽  
Anthropometric Measures ◽  
Medicine Ball

The aims of this study were: to verify the relationship (1) and dependency (2) between body fat (BF), fat free mass (FFM) and the arm muscle area (AMA) with athletic performance of wheelchair basketball players. Twenty-two subjects were evaluated according to the following order, in 24-hour intervals: a) anthropometric measurements and the Wingate anaerobic test (day 1); b) assessment of VO2peak and threshold (2); and c) specific tests (3). The results showed satisfactory relationships of AMA with handgrip left (r=.36; p=.08), VO2peak (r=.59; p=.03), medicine ball throwing (r=.54; p=.00), absolute (r=.61; p=.00) and relative anaerobic power (r=.67; p=.00). BF with handgrip left (r= .43; p=.03), medicine ball throwing (r=.50; p=.01), absolute (r=.77; p=.00) and relative (r=.82; p=.00) anaerobic power. And FFM with handgrip (r=.44; p=.03), medicine ball throwing (r=.43; p=.03), absolute (r=.64; p=.00) and relative (r=.69; p= .00) anaerobic power. The regression analyses revealed that only predictive models by AMA presented good determination coefficients to VO2peak (r2=.35; p=.00), medicine ball throwing (r2=.29; p=.00), absolute (r2=.37; p=.00) and relative (r2=.46; p=.00) anaerobic Power. The results indicated the importance to consider some anthropometric measures, in particular muscular tissue, to sport training and athletic performance evaluation of wheelchair basketball players.

scholarly journals Correlations Between Medicine Ball Throw With Wheelchair Mobility and Isokinetic Tests in Basketball Para-Athletes

2021 ◽  
pp. 1-5
Author(s):  
Frederico Ribeiro Neto ◽  
Irineu Loturco ◽  
Guilherme Henrique Lopes ◽  
Jefferson Rodrigues Dorneles ◽  
José Irineu Gorla ◽  
...  
Keyword(s):  
Female Athletes ◽  
Field Tests ◽  
Peak Torque ◽  
Cross Sectional Study ◽  
Wheelchair Basketball ◽  
Basketball Players ◽  
Cross Sectional ◽  
Male And Female ◽  
Mobility Performance ◽  
Medicine Ball

Context: A detailed analysis of wheelchair basketball skills in beginner wheelchair basketball players (WBP) can provide practitioners with important indications regarding the selection and prospective development of potential sports talents. A comprehensive WBP evaluation can be very time consuming, mainly during the initial phases of the training processes, which could be a barrier in clinical and practical settings. Moreover, the large number and the turnover of beginner WBP attending rehabilitation centers make the applicability of field and strength tests unfeasible. Objective: To verify the relationships between the medicine ball throw (MBT) and wheelchair basketball mobility performance field tests and the shoulder and trunk peak torque in male and female beginner WBP. Design: Cross-sectional study. Setting: Rehabilitation Hospital Network, Paralympic Program. Participants: Thirty-seven female and male beginner WBP. Main Outcomes Measures: Participants performed wheelchair basketball field tests (speed, agility, strength, and power tests) and the maximum strength test in the isokinetic dynamometer. The outcomes were correlated with the MBT results. Results: The MBT presented significantly very high and perfect correlations with all wheelchair basketball field tests assessed (5-m sprint, 20-m sprint, and zig-zag agility test with and without a ball), and peak torque (R2 ranging from .810 to .995; P ≤ .05) for male and female athletes. Conclusions: The MBT, a simple and feasible test, can be used for estimating and determining the wheelchair mobility performance of female and male beginner WBP. It is suggested to measure the distance of a 5-kg medicine ball thrown by athletes during training and testing routines to follow the players’ progression.

Esearch of basketball coaches’ opinion about young players’ annual sports planning

2019 ◽  
Vol 27 (1) ◽  
Author(s):  
Mariana Borukova ◽  
◽  
Yavor Asparuhov
Keyword(s):  
Organizational Characteristics ◽  
Age Group ◽  
Training Process ◽  
Basketball Players ◽  
Percentage Distribution ◽  
Basketball Coaches ◽  
Training Control ◽  
Different Parts

The continuous young basketball players’ sports preparation undergoes several stages, featuring their own specific methodological and organizational characteristics. Young players’ development is related to the dynamics of training influences and their planning in the course of sports preparation. Each stage of sports preparation requires a proper distribution of the number of hours aimed at development of motor qualities (general and special), of technical and tactical skills and habits, as well as play preparation (the play during training, control and calendar games). Their distribution is subjected to certain regularities such as age, stage of preparation, qualification of the players. The aim of the present study is to survey the opinion of sports specialists in the field of basketball about planning the training process and the proportion of the different parts of the preparation when working with young basketball players. The results were processed with analysis of frequencies. According to the general conclusions drawn, in the majority of the responses the coaches’ opinions coincide. There are certain dubieties and differences regarding their knowledge about the percentage distribution and proportion of the different parts of the sports preparation during each stage. However, we believe that every coach’s responses were based on the age group they are working with and this is the reason for the differences in the obtained results.

Analysis of technical preparedness of basketball students

2021 ◽  
pp. 23-25
Author(s):  
Anna Bondar ◽  
Sergey Dus ◽  
Lyudmyla Piliganchuk ◽  
Yevheniya Ivanova
Keyword(s):  
Female Students ◽  
Expert Assessment ◽  
Training Process ◽  
Long Distance ◽  
Basketball Players ◽  
The Face ◽  
Close Range ◽  
Basketball Coaches ◽  
The University ◽  
Technical Readiness

The article analyzes the technical readiness of female students who play basketball as part of the university team. Achieving high sports results in the face of growing competition in basketball competitions. They draw the attention of scientists to the problems associated with the search for effective and methodologically sound approaches to solving problems of improving various types of training of athletes, including technical. The study involved 12 basketball players who are part of the university team. 5 basketball coaches took part in the expert assessment and questionnaire. After analyzing the literature and Internet data, we found the main indicators of technical readiness in basketball, namely: catching the ball, passing the ball, driving the ball, throws in the basket at close range, throws in the basket from the middle distance, throws in the basket from a long distance, moving the player, selecting the ball. Our survey of experts with the subsequent completion of questionnaires allowed us to obtain an assessment of the technical readiness of basketball players. After studying the data, we found that the worst indicators were: throws in the basket from the middle distance, throws in the basket from a long distance, moving the player. The best technical element that the team has is catching the ball, throwing in the basket at close range, driving the ball. Our research will help coaches to choose sets of exercises aimed at improving the worst indicators of technical readiness of basketball players and apply them in the training process to improve the results of the game.

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