Analysing an Optimal Angle in Basketball Free Throw Nor-Al-Din, Siti Musliha; Shamsuddin, Nik Nur Sharina; Noor Khairiah, Razali ...
Journal of physics. Conference series,
11/2021, Volume:
2084, Issue:
1
Journal Article
Peer reviewed
Open access
Abstract
Basketball is a sport, played worldwide by people of all ages, from young to old. The most important skill that a football player should have is shooting. Shooting the ball into the hoop ...involves projectile motion. The ability of a player to shoot will determine the scores of his/her team. The angle and initial velocity taken during the shooting, plays a vital role, so that a perfect shooting could be achieved. This work has been conducted to determine the optimal throwing angle and initial velocity that a player should take in order to get the best shooting. The relationship of these factors were investigated: the throwing angle and player’s height, initial velocity with the player’s height, as well as the throwing angles versus time taken for the ball to reach the hoop. Our focus is to maximize the height of the ball, before it is thrown. Newton’s law and the concept of projectile motion were applied using a calculus-based model. Relationship between the player’s height with the initial velocity, optimal throwing angle and time taken for the ball to reach the hoop were discussed. Perfect optimal release angle were determined for thirty data of NBA players. It shows that the player’s height is inversely proportional to the initial velocity and the optimal throwing angle. The obtained results also concluded that the optimal throwing angle is directly proportional to the time taken for a ball to reach its maximum height.
The increasingly frequent use of computers in analyzing the game of basketball, offers the advantage of a fast analysis of a player’s or a team’s performance, one free of mathematical errors. The ...following study focuses on analyzing the free throws in the Men’s National League of Basketball, emphasizing those features that can make the difference between the champion team and the other participants.Thus, starting from the hypothesis that the team on the first place must be the team with the lowest average of the free throws of the visiting teams, this study would like to point out the number of free throws that were given to the host teams and to the guest teams. Other aspects that have been analyzed in this paper include the percentage of scored points in free throws, the percentage of free throws for teams participating in the LNBM (Men’s National Basketball League) and the teams that have benefited from the most free throws, so that the data obtained can provide coaches with a series of useful information for future preparation.
Interaction between the shooting hand and ball at the moment a basketball is released generates a three-dimensional backspin of the ball. This study is the first to investigate how characteristics of ...the backspin alignment and variability contribute to lateral shooting accuracy. Spin axis (SA) direction and backspin magnitude were measured on 25 shot attempts for 26 collegiate basketball players (male: n = 16, female: n = 10). The mean SA alignment, as viewed from the shooting hand side, was found to be tipped down and towards the target (p < 0.001). Standard deviations (SD) in the SA alignment were strong predictors of lateral accuracy (vertical SD: r = 0.80, p < 0.001, forward-backward SD: r = 0.51, p = 0.01), with variation in the vertical alignment being the best predictor. No significant correlation between mean SA misalignment and lateral accuracy was observed. However, intra-individual relationships between SA misalignment and lateral error revealed that individuals tended to have 0.17 degrees more misalignment for each cm of lateral error (p < 0.001, 95% CI: 0.24-0.09). These indicate that while an individual's mean alignment may not predict lateral accuracy, improving one's SA alignment and reducing alignment variability may increase lateral accuracy.
Penelitian ini bertujuan untuk mengetahui apakah ada pengaruh yang signifikan pada latihan dengan konsep BEEF (balance, eyes, elbow, follow through) terhadap kemampuan shooting free throw bola basket ...pada siswa ekstrakurikuler SMA Negeri 2 Karawang. Penelitian ini berupa penelitian eksperimen untuk mencari apakah berpengaruh latihan dengan konsep BEEF terhadap kemampuan shooting free throw siswa dalam permainan bola basket. Jumlah populasi adalah 30 orang siswa yang diambil dengan teknik purposive sampling dimana kriteria sampel berdasarkan yang diinginkan untuk diberikan treatment berjumlah 20 siswa. Data penelitian ini dilakukan dengan one group pretest-posttest design dengan menggunakan instrumen tes shooting free throw. Hasil penelitian diperoleh melalui uji normalitas data dengan hasil yang menyatakan bahwa data pretest 0,867 > 0,05 dan posttest 0,938 > 0,05 dari hasil penelitian menunjukan data berdistribusi normal serta melalui perhitungan uji homogenitas yang menunjukan nilai Sig. 0,253 > dari 0,05 bahwa data hasil pretest-posttest menyatakan data berdistribusi homogen dan perhitungan uji-t yang didapatkan nilai Sig. (two-tilled) 0,000 < 0,05 menunjukan adanya perbedaan signifikan antara hasil sebelum dan sesudah diberikan treatment, didapat simpulan dari hasil penelitian yang dilakukan dapat dinyatakan adanya pengaruh latihan dengan konsep BEEF terhadap kemampuan shooting free throw bola basket pada siswa ekstrakurikuler SMA Negeri 2 Karawang.
In a basketball game, shooting is an element that determines a team's victory. One of the shooting techniques in basketball is the free-throw technique. Purpose: This study aimed to assess the ...improvement of free-throw processes in basketball games using the ring modification method. Methods and Material: This study uses a quantitative approach with experimental methods with the pre-test post-test control group design. Statistical analysis used: the pre-test and post-test were carried out using a shooting skill assessment scale instrument in basketball games, and then treatment is given. Result: The average increase in the experimental group is better than the control group after treatment is delivered. Conclusion: the results of the study show that ring modification can affect improving shooting techniques from the free-throw line on basketball extracurricular activities at SMP Negeri 5 Bandung.
We investigated the relationship between basketball free-throw accuracy and anthropometry, physical fitness tests, and performance variables among 16 collegiate female basketball players. Each ...participant performed 20 basketball free throws. Anthropometric measures were height and weight; physical fitness tests were sit-and-reach, back strength, and grip strengths; other basketball performance variables were the phases of the pre-shoot routine: (a) time taken, (b) minimum angle when taking the ball back, (c) angle at ball release, (d) angular displacement during the forward arm swing, and (e) angular velocity at ball release on the elbow, shoulder, hip, knee, and ankle. We analyzed the correlation between free-throw accuracy and data on anthropometry and physical fitness, the time period and variability of the pre-shot routine, and kinematic data. There were negative correlations between free-throw accuracy and mean pre-shot time, and variability of the pre-shot time, indicating that participants with a shorter and less variable pre-shot time showed a higher free-throw accuracy. Angular displacement of the shoulder during the forward swing and angular velocity of the knee at ball release showed positive correlations with free-throw accuracy. There was also a negative correlation between free-throw accuracy and variability of angular displacement during the forward swing at the elbow, indicating that participants with smaller variability of angular displacement of the elbow showed higher free-throw accuracy. Some performance variables, including routine duration, angular displacement of the shoulder and elbow, and angular velocity of the knee, were related to free-throw accuracy.
This study aimed to investigate the single and combined effects of sleep restriction (SR) and mental fatigue (MF) on free-throw (FT) performance among adult male basketball players.
A total of 19 ...amateur male basketball players performed, in a randomized, counterbalanced, and crossover order, 2 identical experimental sessions separated by an interval of 1 week. The difference between the 2 sessions was in the quantity of sleep the night before the sessions, as follows: in one case, the participants followed their habitual sleep-wake routines; in the other session, they were forced to sleep not more than 5 hours. During the experimental sessions, the participants performed 60 basketball FTs on 2 occasions, separated by watching a basketball tactical video for 30 minutes designed to induce MF. As such, the FT test was completed in 4 different conditions: control, MF, SR, and SR and MF combined.
The participants registered a significantly lower total sleep time in acute SR (P < .001). The subjective rating of MF was lower in the control than in MF, SR, and SR and MF combined (P < .001). There were no differences between conditions for the subjective ratings of motivation. FT accuracy was higher in the control than in MF, SR, and SR and MF combined (P = .010), while no differences were observed between the 3 experimental conditions (all P > .05).
The results indicate that a combined effect of MF and SR induces a small reduction in basketball FT performance, similar to MF or SR alone.
Attentional focus is an area that has garnered considerable attention in the sport psychology and motor performance literature. This is unsurprising given that attentional focus has been directly ...linked to performance outcomes and is susceptible to coaching input. While research has amassed supporting benefits of an external focus of attention (EFA) on motor performance using verbal instruction, other studies have challenged the notion that an EFA is more beneficial than an internal focus of attention (IFA) for sport-related performance. Further, it is unclear what type of instructions may serve to direct an athlete to an EFA and, in particular, if coaching can utilize imagery to orient an athlete toward an EFA. In the present exploratory study, we evaluate the effectiveness of instruction to improve free-throw shooting performance with an emphasis on an EFA brought about by implementing techniques borrowed from the imagery literature. This was tested relative to an alternate approach with an IFA induced through an emphasis on technique, devised to more closely resemble input typical of coach-to-athlete instruction. Twenty-five male and female university basketball players completed both conditions in a fully counterbalanced within-subject design. Results confirmed that participants in the EFA imagery condition had greater shooting accuracy than in the IFA technique condition. The study provides initial evidence that EFA coaching can borrow from imagery techniques, though future research should elucidate the underlying mechanisms of the effect.
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