Professional Basketball Players Research Articles

Examining the Influence of Season Phase, Age, and Anthropometrics on Body Composition Trends in National Basketball Association Athletes.

Russell, JL, Baker, BS, Mercer, RA, and McLean, BD. Examining the influence of season phase, age, and anthropometrics on body composition trends in NBA athletes. J Strength Cond Res XX(X): 000-000, 2024-This study aimed to describe seasonal body composition changes in NBA athletes using Dual-energy X-ray Absorptiometry (DXA) and to explore the relationship between these changes and factors such as age and anthropometrics. A retrospective analysis was conducted using 402 DXA scans from 62 professional male basketball players, obtained from one NBA team between 2012 and 2023. Seasonal phases were defined as preseason, pre all-star, post all-star, and offseason. A custom region of interest (ROI) method was used to ensure consistent scan areas for taller athletes who exceeded the DXA bed length. Linear mixed models analyzed the influence of seasonal phases, age, and height on lean mass (LM), fat mass (FM), and bone mineral content (BMC). In-season phases (pre all-star and post all-star) showed small increases in LM and decreases in FM compared with the preseason, with no significant BMC changes. Chronological age was associated with increases in LM but not FM. Taller athletes exhibited increases in LM, FM, and BMC. Significant random variance across players and seasons indicated that additional unmeasured factors might influence body composition. NBA athletes generally gain LM and lose FM during the season, with older players showing increased LM gain. The study's novel ROI method provide reliable data for athletes exceeding standard DXA limits, highlighting the importance of tailored body composition assessments in professional basketball. These findings can inform strength and conditioning, nutrition, and player development strategies across different seasonal phases and ages.

Relationship between Body Composition and Physical Performance by Sex in Professional Basketball Players

Relationship between Body Composition and Physical Performance by Sex in Professional Basketball Players

Effects of stopped and reduced training on irisin and metabolic parameters in professional female basketball players

Effects of stopped and reduced training on irisin and metabolic parameters in professional female basketball players

The “three-point shooting paradox”: An artifact or a real phenomenon? Replication with large-scale National Basketball Association (NBA) data

Psychological science is often being criticized for failing to reproduce some of its findings. Considering this critique, Iso-Ahola (2024) argues that it is important to establish a demarcation line between artifact and a real phenomenon, recognizing that psychological phenomena are not constant particles that can be definitively declared to exist or not exist upon discovery. In this brief paper, we utilize newly available large-scale data to replicate a finding by Lidor et al. (2022), who reported a psychological effect wherein professional basketball players shoot better under tight defensive pressure rather than free of it. The current analysis of 781,663 three-point shots over 11 seasons in NBA (as compared to 382 shots taken by 12 players during 12 games in the original study) failed to support the idea of the three-point shooting paradox but instead strongly supports the commonsense hypothesis that tight defense hinders shooting performance.

Differences in Player Performance and Longevity After Achilles Tendon Rupture Between Professional Basketball Players in the NBA and WNBA.

Prior studies in the National Basketball Association (NBA) and Women's National Basketball Association (WNBA) reported worse player performance after Achilles tendon rupture (ATR). The purpose of this study was to compare time to return to play (RTP) and performance after ATR between NBA and WNBA athletes. It was hypothesized that there would be no relative difference between the NBA and WNBA players. Cohort study; Level of evidence, 3. ATRs in the NBA between 1987 and 2017 and WNBA between 2006 and 2017 were identified through a rigorous online search of articles. Included athletes had no prior leg injuries and had played ≥3 seasons before and after ATR. Sex, age, position, body mass index, height, years of experience, time to RTP, and player efficiency rating (PER) were recorded. Relative performance was measured by matching injured athletes to uninjured controls in the same league in a 1:2 ratio. Relative differences were compared between leagues, with adjustment for baseline features. Multiple regression analysis was employed to identify variables correlating with RTP and PER. Included were 102 professional basketball players, of whom 34 sustained ATR (21 male, 13 female). Sex/league correlated with differences in RTP (P < .001). There was a significant difference between the WNBA and NBA in PER when comparing 1 year pre- and 1 year postinjury (1.49 ± 0.25 vs 3.87 ± 0.43, respectively; mean ± SD P < .001). Compared with intraleague controls, the relative difference in PER postinjury was 0.81 ± 0.11 (WNBA) and 3.9 ± 0.89 (NBA) (P < .001). Multiple regression analysis indicated that when controlling for years of experience, player position, and age, NBA players took 126 days longer than WNBA players to RTP (P < .001) and NBA players had 9.96 times increased odds of taking >200 days to RTP compared with WNBA players (P = .006). Sex/league was a significant predictor of RTP after ATR. When compared with their respective controls, NBA players saw a greater decrease in postinjury performance than WNBA players. NBA players took longer to RTP than WNBA players. ATRs appear to more negatively affect NBA players than WNBA players.

Relationship between Physical Demands and Player Performance in Professional Female Basketball Players Using Inertial Movement Units

Load monitoring has been identified as a valuable tool for optimizing training planning and minimizing injury risk. This study’s aim was divided into two main objectives: (1) to describe the physical demands during official competition through IMU (inertial movement unit) metrics and (2) to investigate the relationship between basketball statistics and these physical demands. Twelve female highly trained basketballers (26.5 ± 5.3 years, 180 ± 7.1 cm, and 73.6 ± 10.3 kg) were monitored during four official games. Our results indicate that games with more frequent possession changes, particularly those driven by steals and turnovers, exhibit higher physical demands. Additionally, longer game durations were associated with longer recovery time while maintaining similar active time and physical load. Players who assume prominent shooting roles face greater conditional demands, such as increased jumps and impacts, even with equal playing time. These findings suggest that IMUs provide valuable insights into high-intensity actions and patterns, indicating a direct association between physical load and player performance in professional female basketball. This study also highlights the potential for professionals to better manage workload and understand player demands using these insights, even in the absence of in-game sensor data. Our research underscores the importance of contextual analysis in sports performance studies, encouraging future investigations into game phases and their specific physical demands.

The Acute:Chronic Workload Ratio in professional basketball players – is it a useful tool to load control?

The increasing number of competitions in professional basketball has increased the interest in controlling player loads. The Acute:Chronic Workload Ratio is a very common tool for controlling load variation in professional teams. However, there are specific situations in which the ACWR is limited if no historical load values are available. The objective of this intervention was to analyze the workload of a professional basketball team through the ACWR, including a retrospective review of its curve for those scenarios in which it is desired to obtain accurate values of injury risk without players’ previous load values. A ten-player professional men’s team participated in this study. WIMU Pro brand inertial devices were used to quantify player load during training. The variables in this study were objective and subjective external load, acute load and chronic load. The results show the existence of injuries when the load is disproportionately increased and enters very high risk values. The incidence of injury is 20% when the risk values are exceeded. The study corroborates that the Acute:Chronic Workload Ratio is a practical and useful tool to monitor the load and its evolution throughout the mesocycle without further statistical analysis. In addition, it is useful to know when to control the players' loads from an eminently practical point of view, finding non-causal relationships with the appearance of injuries. A retrospective review of the values is recommended if it is desired to refine the injury risk value in those measurements where pre-intervention load rates are not available. El incremento de competiciones en baloncesto profesional ha generado un creciente interés en el control de la carga de los jugadores. El Ratio Agudo: Crónico es una herramienta muy común para controlar la variación de la carga en equipos profesionales. Sin embargo, se dan situaciones específicas en las que el RA:C está limitado si no se dispone de un histórico de los valores de carga. El objetivo de esta intervención fue analizar la carga de un equipo profesional a través del RA:C, incluyendo una revisión retrospectiva de su curva en aquellos escenarios en los que se desea obtener valores precisos de carga sin disponer de un histórico de las cargas de los jugadores. Un equipo profesional de diez jugadores participó en el estudio. Los dispositivos inerciales WIMU Pro fueron utilizados para cuantificar la carga de los jugadores durante el entrenamiento. Las variables de este estudio fueron la carga externa objetiva y subjetiva, la carga aguda y la carga crónica. Los resultados muestran la existencia de lesiones cuando la carga incrementa de manera desproporcional y figuran valores de riesgo de lesión en los jugadores. La incidencia lesional es del 20% cuando se superan los valores de riesgo. El estudio corrobora que el Ratio Agudo: Crónico es una herramienta práctica y útil para monitorizar la carga y su evolución durante el mesociclo sin realizar posteriores análisis estadísticos. Además, es útil para conocer las cargas de manera eminentemente práctica, encontrando asociaciones no causales con la apariencia de lesiones. Se recomienda una revisión retrospectiva de la curva cuando se desea conocer los valores de riesgo lesional y no se dispone de datos de una preintervención. O crescente número de competições no basquetebol profissional tem aumentado o interesse no controlo das cargas dos jogadores. O rácio de carga de trabalho aguda:crónica é uma ferramenta muito comum para controlar a variação de carga nas equipas profissionais. No entanto, existem situações específicas em que o ACWR é limitado se não existirem valores históricos de carga disponíveis. O objetivo desta intervenção foi analisar a carga de trabalho de uma equipa profissional de basquetebol através do ACWR, incluindo uma revisão retrospetiva da sua curva para aqueles cenários em que se pretende obter valores precisos de risco de lesão sem os valores de carga anteriores dos jogadores. Participou neste estudo uma equipa profissional masculina de dez jogadores. Foram utilizados dispositivos inerciais da marca WIMU Pro para quantificar a carga dos jogadores durante o treino. As variáveis deste estudo foram a carga externa objetiva e subjectiva, a carga aguda e a carga crónica. Os resultados mostram a existência de lesões quando a carga é aumentada de forma desproporcionada e entra em valores de risco muito elevados. A incidência de lesões é de 20% quando os valores de risco são ultrapassados. O estudo corrobora que o rácio carga de trabalho aguda:crónica é uma ferramenta prática e útil para monitorizar a carga e a sua evolução ao longo do mesociclo sem uma análise estatística mais aprofundada. Além disso, é útil para saber quando controlar as cargas dos jogadores de um ponto de vista eminentemente prático, encontrando relações não causais com o aparecimento de lesões. Recomenda-se uma revisão retrospetiva dos valores se se pretender aperfeiçoar o valor do risco de lesão nas medições em que não se dispõe de taxas de carga pré-intervenção.

The impact of internal and external loads on player performance in Chinese basketball association

BackgroundLimited research has investigated the association between training load and performance of basketball players during games. Little is known about how different indicators of player performance are affected by internal and external loads. The purpose of this study was to determine whether external and internal loads influence basketball players’ performance during games.MethodThis longitudinal study involved 20 professional male basketball players from a single team, classified as first-level athletes by the Chinese Basketball Association. During 34 games, external load was measured as PlayerLoad using micro-sensors, while internal load was assessed using session rating of perceived exertion (sRPE). Player performance was quantified using three metrics: Efficiency, Player Index Rating (PIR), and Plus-Minus (PM). Pearson correlation coefficients were calculated to assess the strength of the relationships between training loads and performance metrics. Linear mixed-effects models were applied to further analyze the influence of internal and external loads on basketball performance.ResultsPearson correlation analysis revealed moderate positive correlations between both sRPE and PlayerLoad with Efficiency and PIR. Specifically, sRPE (r = 0.52) and PlayerLoad (r = 0.54) were both significantly correlated with Efficiency. For PIR, sRPE (r = 0.50) and PlayerLoad (r = 0.56) also demonstrated moderate correlations. These correlations were further substantiated by linear mixed-effects models, which showed that sRPE (β = 2.21, p < 0.001) and PlayerLoad (β = 1.87, p = 0.004) had significant independent effects on Efficiency. Similarly, sRPE (β = 2.15, p < 0.001) and PlayerLoad (β = 2.36, p < 0.001) significantly predicted PIR. Additionally, a significant interaction effect between PlayerLoad and sRPE was found on Plus-Minus (β = -2.49, p < 0.001), indicating that the combination of high physical and psychological loads negatively impacted overall team performance. However, the correlation strengths for Plus-Minus were relatively low (sRPE: r = 0.16; PlayerLoad: r = 0.10).ConclusionBoth external and internal loads positively contribute to performance, the integration of objective (accelerometry) and subjective (sRPE) measures of load provides a comprehensive understanding of the physiological and psychological demands on athletes, contributing to more effective training regimens and performance optimization.

Are made and missed different? An analysis of field goal attempts of professional basketball players via depth based testing procedure

Are made and missed different? An analysis of field goal attempts of professional basketball players via depth based testing procedure

Comparison of physical fitness level among different competition categories in women's basketball

Acquiring good levels of physical fitness in women's basketball is crucial for success in this complex sport. Thus, the objective of the research is to compare the level of physical fitness in women's basketball between different competitive categories through a systematic review. For this purpose, four databases were consulted (Google Scholar, PubMed, Scielo and LILACS) in Portuguese, Spanish and/or English, in which 32 primary scientific articles were found on physical fitness in women's basketball in the competitive categories and 51 manuscripts complementary secondary about the theme. Physical fitness indicators are divided into anthropometric, metabolic and neuromuscular. Each indicator has a series of variables whose sum will allow us to understand the athlete's actual physical fitness status. The physical training of female players follows the same guidelines as male athletes, but three aspects deserve attention when prescribing programs: menstrual cycle, eating disorders and bone mineral loss. In addition, cardiovascular and neuromuscular characteristics distinguish genders and interfere with physical fitness gains. In general results, professional basketball players presented better averages in the group of indicators (63.1%), followed by formative (21.0%), college (10.5%) and semi-professional (5.26%) players. Finally, it was evident that as female players progress in chronological age, they mature biologically and acquire training support, advancing between the competitive categories. In this way, your physical fitness comes to denote improvement. However, there is a large individual biological variability that impacts the average numbers between the indicators.

Male National Basketball Association G-League and Collegiate Basketball Athletes Have a High Prevalence of Radiographic Ankle Abnormalities

PurposeThe purposes of this study were to characterize radiographic foot/ankle bony abnormalities in elite-level, asymptomatic male basketball athletes, and to investigate the association between anthropometric (age, height, weight) or sport-specific characteristics (total exposures, player position, pregame ankle taping) and the prevalence of abnormal radiographic findings in asymptomatic basketball athletes MethodsElite-level basketball players who underwent routine, pre-season static radiographic imaging, including antero-posterior, lateral, and mortise views of the ankle were included. Radiographs were collected from asymptomatic athletes participating in pre-season history and physical with negative anterior drawer/talar tilt test. Radiographs were evaluated by a musculoskeletal radiologist and board-certified orthopedic surgeon; kappa statistics were used to evaluate agreement. ResultsFifty-four basketball players (34 collegiate, 20 professional; mean age 21.5 years) were included, totaling 5,148 player exposures from 2017-2019. 106 ankles presented with radiographic findings (98.15%). The most prevalent radiographic finding was pes planus (47.22%), followed by degenerative joint disease (DJD) (33.33%), talonavicular sclerosis (28.70%), prominent stieda process (25.93%), os trigonum (20.93%), os subfibulare (11.11%), pes cavus (5.56%), subtalar coalition (2.78%), and cavovarus (0.93%). Height ≥ 80” was significantly associated with talonavicular sclerosis and Kellgren-Lawrence 1 changes. ConclusionsThis study demonstrated a strong association between height and talonavicular sclerosis and DJD, as well as a relatively high prevalence of pes planus and DJD in asymptomatic collegiate and professional basketball players.

Monitoring training load and perceived recovery indicators during the preseason and in-season phases in professional female basketball players.

During the basketball season, it is essential to carefully plan training and recovery activities to optimize players' performance. This study monitored training load and perceived recovery indicators in professional female basketball players across the preseason and in-season phases. Seventeen professional female basketball players (age: 19.6±3.1 years; height: 180.2±5.9 cm; playing position: 8 backcourt, 9 frontcourt) were monitored for eleven consecutive weeks. Each morning, players reported their perceived recovery using a 10-point Total Quality of Recovery (TQR) Scale. After each training session or game, players reported their perceived exertion using the CR-10 Scale, which was multiplied by the duration of the training or game to obtain the session load. Weekly load, monotony, strain, TQR<inf>AM</inf> (morning recovery) and TQR<inf>fw</inf> (recovery at the start of the following week) were calculated. Linear mixed models were performed to assess the effects of season phase (preseason; in-season), playing position (backcourt; frontcourt) and group (senior; under) on load and recovery variables. Weekly load, monotony and strain were higher in the preseason than the in-season phase (all P<0.001, ES: moderate-large). Strain was higher in senior players compared to under (P=0.045, ES: small). Regarding recovery variables, no effects were found for TQR<inf>AM</inf>, while TQR<inf>fw</inf> was higher in the preseason than in-season (P<0.001, ES: moderate) phase. Professional female basketball players experience lower internal loads but poorer perceived recovery during the in-season phase. Practitioners should carefully consider the stress of competition and the cumulative fatigue from high preseason loads during the transition from the preseason to the regular season.

Do Elite Basketball Players Maintain Peak External Demands throughout the Entire Game?

Consideration of workload intensity and peak demands across different periods of basketball games contributes to understanding the external physical requirements of elite basketball players. Therefore, the aim of this study was to investigate the average intensity and peak demands encountered by players throughout game quarters. PlayerLoad per minute and PlayerLoad at three different time samples (30 s, 1 min, and 3 min) were used as workload metrics. A total of 14 professional elite male basketball players were monitored during 30 official games to investigate this. A linear mixed model and Cohen's d were employed to identify significant differences and quantify the effect sizes among game quarters. The results showed a significant, moderate effect in PlayerLoad per minute between Q1 vs. Q4, and a small effect between Q2 and Q3 vs. Q4. Furthermore, a small to moderate decline was observed in external peak values for PlayerLoad across game quarters. Specifically,, a significant decrease was found for the 3 min time window between Q1 and other quarters. The findings from the present study suggest that professional basketball players tend to experience fatigue or reduced physical output as the game progresses.

Changes in Countermovement Vertical Jump Force-Time Metrics During a Game in Professional Male Basketball Players.

Cabarkapa, D, Johnson, QR, Cabarkapa, DV, Philipp, NM, Eserhaut, DA, and Fry, AC. Changes in countermovement vertical jump force-time metrics during a game in professional male basketball players. J Strength Cond Res 38(7): 1326-1329, 2024-As technology within elite basketball advances and is more available to sporting organizations, novel approaches for assessing and addressing athletic performance during practice or competition are being continuously explored. The aim of this investigation was to examine changes in neuromuscular performance during live basketball play. Eight professional male basketball players volunteered to participate in this study. The testing procedures were conducted during a pre-tournament camp over a span of 2 days. During the first day, the athletes were familiarized with the testing procedures, and baseline measurements were obtained. Using a uni-axial force plate system sampling at 1,000 Hz, each athlete performed 3 countermovement vertical jumps (CVJ) without an arm swing before proceeding with their regular training activities. During the second day of the pre-tournament camp, the athletes repeated identical CVJ testing procedures before the start of the first quarter and post-first, second, third, and fourth quarter of a simulated 5-on-5 basketball game. Repeated-measures testing design was used to examine statistically significant differences in various force-time metrics of interest in comparison to the baseline levels (p < 0.05). Besides a trivial decrease in eccentric mean force, the findings of this study revealed no statistically significant changes in any force-time metrics of interest within both eccentric and concentric phases of the CVJ (i.e., mean and peak force and power, jump height, impulse, velocity, and contraction time). Thus, we can conclude that these variables were not sensitive to acute fatigue, suggesting that the neuromuscular performances of professional male basketball players tend to remain unchanged throughout a 5-on-5 simulated game.

Correlation of the Score Obtained Through The “Functional Movement Screen” (FMS) Test with The Incidence of Musculoskeletal Injuries in Players of The Mexican Professional Basketball League (LNBP) During The 2023 Season

Background. The assessment of mobility is important to determine the degree of functionality inherent in the ability to move and, therefore, sports performance. Likewise, mobility is related to the development of musculoskeletal injuries, but this is little known in professional basketball players. Objective. Correlation of the FMS score with the incidence of musculoskeletal injuries in LNBP players during the 2023 season. Methodology. An observational, cross-sectional, analytical, prospective study was conducted on professional basketball players from the Mexican League who played during the 2023 season. Before the start of the 2023 season, the FMS test was performed on the players. Other useful information for the study was recorded: history of musculoskeletal injuries, presence of pain, or limitation to movement at the time of the test. After that, a follow-up was carried out throughout the 2023 season to identify if the players had any musculoskeletal injury, including fracture, muscle injury, connective tissue injury (meniscal, capsular, fascial, etc.), ligamentous injury, tendinopathy, and low back pain. A musculoskeletal injury was defined as physical damage to the body secondary to athletic activity or an event for which the athlete sought medical attention and resulted in modified training or required splitting or protective taping. The affected joint or body site (knee, ankle, elbows, shoulders, wrist, other) and the number of injuries during the season were also recorded. Finally, the information was captured in the SPSS v.26 statistical program to determine if there were significant correlations between the scores obtained from the FMS test and the incidence of musculoskeletal injuries. Results. Among the 27 players, the average age was 29.4±3.7 years (range 21-39 years). The overall incidence of musculoskeletal injuries throughout the season was 88.9%, only 3 players did not present musculoskeletal injuries (11.1%). The average was 2.7±1.4 injuries per player throughout the season. First-time injuries represented 69.2% of the cases and recurrent injuries represented 30.8%. 41.5% of the players had a minor injury, 36.9% mild, 10.8% moderate, and 10.8% severe. The mean FMS score was 14.5±1.8. The Pearson correlation between the FMS score and the number of lesions was r=0.084 (p=0.900). There were no significant differences in games lost, days out, and number of injuries, but there was a trend toward fewer games lost and days out in players with more than 14 points on the FMS scale. No significant differences were found in the FMS score by injury severity (p=0.472). The area under the curve for predicting moderate-severe musculoskeletal injuries based on the FMS score was 0.581 (0.419-0.742, p=0.359). In those over 30 years of age, a significant correlation of the FMS score with age was found (r=-0.406), but not in those under 30 years. Conclusion. The incidence of musculoskeletal injuries was high. Although the FMS score was not a determining predictor for its development, our study suggests its potential usefulness in identifying players with a higher risk of severe injuries, especially individuals over 30 years.

Quarterly fluctuations in external and internal loads among professional basketball players.

This study aims to explore the variations in external and internal loads on a quarter-by-quarter basis among professional Chinese basketball players. It emphasizes the crucial impact of these variations on optimizing athletic performance and match strategies. An observational longitudinal study design was employed, involving sixteen male players from the National Basketball League during the 2024 season in China. Data collection was facilitated through the use of Catapult S7 devices for measuring external loads and session ratings of perceived exertion (sRPE) for assessing internal loads. Linear mixed-effects models were utilized for the statistical analysis to identify differences in workload intensities across game quarters based on player positions. The Pearson correlation coefficient was used to examine the relationship between external and internal load throughout the game. The analysis uncovered significant positional differences in workload intensities across game quarters. Guards were found to have a higher PlayerLoad™ (PL) per minute in the first quarter, while centers demonstrated an increase in high-intensity accelerations and jumps in the fourth quarter. Furthermore, a significant moderate correlation between sRPE and PL was observed across all game quarters, indicating a link between physical exertion and athletes' perceptions of effort. The study offers new insights into the dynamic physical demands faced by basketball players and the importance of using both objective and subjective measures for a comprehensive assessment of athlete performance and wellbeing. The findings underscore the interconnectedness of physical exertion and athlete perception, providing a foundation for future research and practical applications in the field of basketball science.

Relationship between vertical jump performance and playing time and efficiency in professional male basketball players.

With innovative force plate technology being available to many sports organizations worldwide that allow for time-efficient in-depth neuromuscular performance assessment, the purpose of the present study was to examine the relationship between some of the most commonly analyzed countermovement vertical jump (CVJ) force-time metrics and basketball playing time and efficiency. Twenty-four professional male basketball players volunteered to participate in the present study. The CVJ testing procedures were conducted within the first quarter of the competitive season span. Following a standardized warm-up protocol, each athlete stepped on a dual uni-axial force plate system sampling at 1,000 Hz and performed three maximum-effort CVJs with no arm swing. To minimize the possible influence of fatigue, each jump trial was separated by a 10-15 s rest interval and the average value across three jumps was used for performance analysis purposes. Basketball playing efficiency and average playing time were obtained at the end of the regular season competitive period from the coaching staff records and the official team records. Pearson product-moment correlation coefficients (r) were used to examine the strength of the relationships between force-time metrics and basketball playing time and efficiency, separately for each dependent variable (p < 0.05). A significant positive association was observed between playing efficiency and eccentric mean force and eccentric mean and peak power (r = 0.406-0.552). Similarly, an increase in eccentric mean power was positively correlated with the number of minutes played during the competitive season (r = 0.464). Moreover, the aforementioned relationship remained present even when eccentric mean power was expressed relative to the player's body mass (r = 0.406). Thus, the findings of the present study indicate that, at the professional level of men's basketball competition, CVJ eccentric strength and power have a positive impact on both playing time and efficiency.

Video analysis of anterior cruciate ligament tears of professional basketball players in the National Basketball Association.

Anterior cruciate ligament (ACL) tears are devastating for elite athletes, including those in the National Basketball Association (NBA). The purpose of this study was to describe common in-game mechanisms of injury, playing situations, and anatomic positioning of players who sustained an ACL injury in the NBA. ACL tears which occurred in NBA games during the previous 16 seasons (2007-2022) and had accessible video clips were identified through publicly available reports. Thirty-one ACL tears were identified with quality videos available. Nearly all players were on offense (93.5%, 29/31). Most ACL tears (29/31, 93.5%) did not involve direct contact to the injured extremity. The most common physical activity at the time of injury was landing from any type of jump (45.2%, 14/31). Anatomically, the knee was frequently in early flexion (58.8%, 10/17) and abducted (77.4%, 24/31); the foot was commonly abducted (87.1%, 27/31); and the hip was usually abducted (64.5%, 20/31) and flexed (80.6%, 25/31). Almost all players had another individual near them at the time of injury, with 90.3% (28/31) and 96.8% (30/31) having someone within 2ft and 5ft. Most ACL tears occurred inside the lane, regardless of mechanism of injury (26/31, 83.9%). ACL tears in the NBA were primarily not due to direct contact of the injured extremity but did have common anatomic patterns. The findings of this study can be used in the future to help reduce the risk of injury through the adaptation of current training activities.

Relative Age Effect on basketball. The case of Chinese professional basketball players

Relative Age Effect on basketball. The case of Chinese professional basketball players

Isokinetic Ankle Inversion and Eversion Muscle Strength in Korean Men’s Professional Basketball Players

PURPOSE: In this study, the isokinetic strength of ankle inversion and eversion in Korean professional basketball players (KBL) was assessed, distinguishing between their dominant and non-dominant legs, as well as across different positions.METHODS: A meticulously designed study was conducted involving 25 KBL players (12 guards, 11 forwards, and 2 centers) with an average age of 27.8 ± 5.3 years. The CSMI Norm isokinetic dynamometer, a highly accurate instrument, was used to measure bilateral isokinetic concentric strength at 60°·s-¹ and 150°·s-¹. The study measured peak torque (Nm), body mass normalized peak torque (Nm·kg-¹), bilateral strength asymmetry, and the eversion-to-inversion strength ratio in both dominant and non-dominant legs.RESULTS: Peak torques, normalized peak torques, and eversion-to-inversion strength ratios were not significantly different between the dominant and non-dominant legs at the two angular speeds. There was also less than a 10% asymmetry in strength between the two legs. However, a position-specific analysis revealed that guards had a significantly higher normalized peak torque (0.35 vs. 0.30 Nm·kg-1, p = .048) for ankle inversion of the dominant leg at 150°·s-¹ compared to forwards.CONCLUSIONS: The results suggest that healthy KBL players exhibit symmetrical ankle inversion and eversion muscle strength between their dominant and non-dominant sides, with possible positional differences in strength. These findings serve as a reference for the assessment of inversion and eversion strength in basketball players.