scholarly journals Offseason Fitness Tests a Collegiate Basketball Strength Coach Should Choose to Predict In-Season Perfomance Based on Sex

2021 ◽  
Vol 20 (2) ◽  
pp. 164-174
Author(s):  
A. Stamatis ◽  
Z. Papadakis ◽  
G. B. Morgan ◽  
A. Boolani
Keyword(s):  
National Collegiate Athletic Association ◽  
Performance Metrics ◽  
Vertical Jump ◽  
Efficiency Index ◽  
Strongly Correlated ◽  
Strength And Conditioning ◽  
Basketball Players ◽  
Fitness Tests ◽  
The Us ◽  
Strength Coach

Abstract Quantification of athletic performance via analysis of scores of off-season fitness tests has become an essential part of the modern strength and conditioning coach (SCC). Player Efficiency Rating (PER) and Efficiency index (EFF) are two of the most used in-season basketball performance metrics in the US. We collected data from male and female basketball players of a National Collegiate Athletic Association (NCAA) program. Based on sex, we examined a) if unadjusted PER (uPER) and EFF reflect different amounts of information and b) which fitness tests predict those two indices more accurately. Our results showed lower means and less variability of the fitness tests scores in women than men. The correlation between uPER and EFF in men was moderate and strong in women. In men, no strong correlation was found between any fitness test and EFF, while full court sprint was strongly correlated with uPER. In women, strong correlations were detected between a) the T-drill and EFF and b) the foul court sprint, the vertical jump, and the T-drill and uPER. The collegiate SCCs should consider that off-season scores of a) the foul court drill may predict uPER more accurately in both men and women and b) the T-drill may predict both EFF and uPER more precisely in women.

scholarly journals Effect of Achilles Tendon Repair on Performance Outcomes After Return to Play in National Collegiate Athletic Association Division I Basketball Athletes

2021 ◽  
Vol 9 (6) ◽  
pp. 232596712110152
Author(s):  
Rafael Sanchez ◽  
Blake H. Hodgens ◽  
Joseph S. Geller ◽  
Samuel Huntley ◽  
Jonathan Kaplan ◽  
...  
Keyword(s):  
Ncaa Division I ◽  
National Collegiate Athletic Association ◽  
Performance Metrics ◽  
Female Athletes ◽  
Surgical Repair ◽  
National Basketball Association ◽  
Division I ◽  
Return To Play ◽  
Basketball Players ◽  
Significant Drop

Background: Achilles tendon (AT) ruptures are devastating injuries that are highly prevalent among athletes. Despite our understanding of the effect of AT rupture and in particular its relationship to basketball, no study has examined the effects of AT rupture and repair on performance metrics in collegiate basketball players. Purpose: To evaluate the effect of AT rupture and subsequent surgical repair on performance metrics in National Collegiate Athletic Association (NCAA) Division I basketball players who return to play after injury. Study Design: Descriptive epidemiology study. Methods: NCAA Division I basketball players who sustained an AT rupture and underwent subsequent surgical repair between 2000 and 2019 were identified by systematically evaluating individual injury reports from databases comprising NCAA career statistics and individual school statistics; 65 male and 41 female players were identified. Athletes were included if they participated in at least one-half of the games of 1 collegiate season before tearing the AT and at least 1 season after operative repair. A total of 50 male and 30 female athletes were included. Each injured athlete was matched to a healthy control by conference, position, starter status at time of injury, class year, and number of games played. Matched controls were healthy players and experienced no significant injuries during their NCAA careers. Results: After AT repair, male athletes had significantly more minutes per game, points per game, and compared with before injury. Total blocks significantly decreased after injury. Female athletes scored significantly more points per game but demonstrated a significantly lower 3-point shooting percentage after return to play. Despite undergoing AT rupture and repair, 14% of male players played in the National Basketball Association, and 20% of injured female athletes played in the Women’s National Basketball Association. Conclusion: After returning to play, men demonstrated a significant drop-off in performance only in regard to total blocks. Female athletes after AT repair demonstrated a significant improvement in points per game but had a significant drop-off in 3-point shooting percentage.

scholarly journals IDENTIFICATION OF PHYSICAL FITNESS TESTS FOR BASKETBALL PLAYERS

2020 ◽  
Vol 20 (S1) ◽  
pp. 46-54
Author(s):  
A Vavilov ◽  
O Anfilatova ◽  
A Laptev ◽  
Ya Sirakovskaya
Keyword(s):  
Physical Fitness ◽  
Vertical Jump ◽  
Practical Interest ◽  
Educational Process ◽  
State University ◽  
Training Process ◽  
Basketball Players ◽  
Fitness Tests ◽  
Explosive Force ◽  
And Training

Aim. The paper aims to study the factor structure of physical fitness in basketball players and identify tests for a qualitative and quantitative assessment of their skills. Materials and methods. The study was conducted from September 2017 to May 2018 at Vyatka State University, Kirov. Fifty-three students were examined, all of them participated in the University Basketball Championship. A theoretical analysis of scientific literature sources and a pedagogical experiment were conducted. Mathematical statistics and pedagogical testing were used as methods. Results. Twelve tests were selected and checked for reliability that influenced most the physical fitness of basketball players in terms of strength, speed, jumping ability. Three hypothetical latent factors were identified that optimally determined the combination of these tests: “jumping ability / speed”, “explosive force/endurance”, and “strength”. Using factor analysis and an intercorrelation matrix, the most informative physical fitness tests were identified: standing vertical jump, 20 m shuttle run, pull-ups, which are used in the educational and training process of basketball players. Conclusion. The data obtained from the pedagogical experiment are of practical interest, primarily for trainers and university teachers. These tests do not require expensive equipment and can be performed in a gym, at the same time being the most informative in a limited time, which is typical for the educational and training process of students. This approach increases the efficiency of classes and optimizes the educational process. A comprehensive assessment of students will make it possible to track their health and physical fitness. Such data will allow adjusting the training process in the most effective way.

scholarly journals Effects of Kettlebell Swing vs. Explosive Deadlift Training on Strength and Power

2017 ◽  
Vol 5 (1) ◽  
pp. 1 ◽  
Author(s):  
Matthew R. Maulit ◽  
David C. Archer ◽  
Whitney D. Leyva ◽  
Cameron N. Munger ◽  
Megan A. Wong ◽  
...  
Keyword(s):  
Vertical Jump ◽  
Jump Height ◽  
Strength And Conditioning ◽  
Vertical Jump Height ◽  
Jump Power

Background: Recent research has compared explosive deadlift to kettlebell training observing their effects on strength. The kettlebell swing is a popular practical exercise as it shares share a hip hinge movement with the explosive deadlift, but the two have not been compared. Objectives: The purpose of this study was to compare the effects of kettlebell swing vs. explosive deadlift training on strength and power. Methods: Thirty-one recreationally resistance-trained men (age = 23.1 ± 2.3 years, height = 175.5 ± 6.6 cm, mass = 83.9 ± 13.8 kg, 1RM deadlift = 159.9 ± 31.7 kg) were randomly assigned to one of two groups [kettlebell swing group (KBG) n = 15, or explosive deadlift group (EDLG) n = 16]. Vertical jump height, isometric mid-thigh pull (MTP), and 1RM deadlift were measured pre and post training. Both groups trained twice per week for 4 weeks. Volume and load were increased after the first 2 weeks of training. Results: A 2 (time) x 2 (group) mixed factor ANOVA revealed a significant (P<0.05) increase in deadlift 1RM (pre: 159.9 ± 31.7 kg, post: 168.9 ± 31.8 kg) and vertical jump height (pre: 56.6 ± 9.9 cm, post: 57.9 ± 9.7 cm) for both groups, but were not significantly different between groups. There were no significant changes in MTP. Conclusions: Strength and conditioning professionals may use both kettlebell swings and explosive deadlifts to increase deadlift strength and vertical jump power.

scholarly journals Effects of Plyometric vs. Combined Plyometric Training on Vertical Jump Biomechanics in Female Basketball Players

2021 ◽  
Vol 77 (1) ◽  
pp. 25-35
Author(s):  
Alberto Sánchez-Sixto ◽  
Andrew J Harrison ◽  
Pablo Floría
Keyword(s):  
Vertical Velocity ◽  
Vertical Jump ◽  
Center Of Mass ◽  
Height Velocity ◽  
Moderate Increase ◽  
Training Methods ◽  
Plyometric Training ◽  
Basketball Players ◽  
Jump Performance ◽  
Combined Training

Abstract The purpose of this study was to assess and compare the effects of plyometric training and combined training programs on vertical jump kinematics and kinetics of female basketball players. Thirty-six female basketball players were included in the study and further divided into three groups: plyometric training, n = 11; combined training n =13; and a control group, n =12. Combined training comprised full squat exercise with low resistance (50-65% 1RM) and low volume (3-6 repetitions/set) combined with repeated jumps. Plyometric training included drop jumps and repeated jumps. Both training methods showed a moderate increase in jump performance, although combined training achieved substantially higher values than plyometric training alone. After plyometric training, the vertical velocity and displacement of the center of mass of the countermovement jump increased, while force variables decreased. Combined training increased power, vertical velocity and displacement of the center of mass, but force variables remained unchanged. Both training methods improved jump height, velocity and displacement of the center of mass. Combined training maintained force measures while plyometric training decreased them. These results indicate that combined training might provide better outcomes on jump performance than plyometric training alone. It also appears important to measure biomechanical variables to appropriately interpret the effects of different training methods.

scholarly journals Comparison of Culture- and Quantitative PCR-Based Indicators of Antibiotic Resistance in Wastewater, Recycled Water, and Tap Water

2019 ◽  
Vol 16 (21) ◽  
pp. 4217 ◽  
Author(s):  
Jaqueline Rocha ◽  
Telma Fernandes ◽  
Maria V. Riquelme ◽  
Ni Zhu ◽  
Amy Pruden ◽  
...  
Keyword(s):  
Antibiotic Resistance ◽  
Tap Water ◽  
Quantitative Polymerase Chain Reaction ◽  
Antibiotic Resistance Genes ◽  
Fecal Coliforms ◽  
Future Application ◽  
Strongly Correlated ◽  
Recycled Water ◽  
The Us ◽  
Genes Encoding

Standardized methods are needed to support monitoring of antibiotic resistance in environmental samples. Culture-based methods target species of human-health relevance, while the direct quantification of antibiotic resistance genes (ARGs) measures the antibiotic resistance potential in the microbial community. This study compared measurements of tetracycline-, sulphonamide-, and cefotaxime-resistant presumptive total and fecal coliforms and presumptive enterococci versus a suite of ARGs quantified by quantitative polymerase chain reaction (qPCR) across waste-, recycled-, tap-, and freshwater. Cross-laboratory comparison of results involved measurements on samples collected and analysed in the US and Portugal. The same DNA extracts analysed in the US and Portugal produced comparable qPCR results (variation <28%), except for blaOXA-1 gene (0%–57%). Presumptive total and fecal coliforms and cefotaxime-resistant total coliforms strongly correlated with blaCTX-M and intI1 (0.725 ≤ R2 ≤ 0.762; p < 0.0001). Further, presumptive total and fecal coliforms correlated with the Escherichia coli-specific biomarkers, gadAB, and uidA, suggesting that both methods captured fecal-sourced bacteria. The genes encoding resistance to sulphonamides (sul1 and sul2) were the most abundant, followed by genes encoding resistance to tetracyclines (tet(A) and tet(O)) and β-lactams (blaOXA-1 and, blaCTX-M), which was in agreement with the culture-based enumerations. The findings can help inform future application of methods being considered for international antibiotic resistance surveillance in the environment.

scholarly journals The Relationship Between Muscle Strength, Anaerobic Performance, Agility, Sprint Ability and Vertical Jump Performance in Professional Basketball Players

2012 ◽  
Vol 31 (1) ◽  
pp. 149-158 ◽  
Author(s):  
Utku Alemdaroğlu
Keyword(s):  
Muscle Strength ◽  
Vertical Jump ◽  
Body Height ◽  
Field Tests ◽  
Anaerobic Performance ◽  
Basketball Players ◽  
Jump Performance ◽  
Professional Basketball ◽  
The Relationship ◽  
Sprint Ability

The Relationship Between Muscle Strength, Anaerobic Performance, Agility, Sprint Ability and Vertical Jump Performance in Professional Basketball PlayersThe purpose of this study was to investigate the relationship between isokinetic knee strength, anaerobic performance, sprinting ability, agility and vertical jump performance in first division basketball players. Twelve male first division basketball players participated in this study. The mean age was 25.1 ± 1.7 yrs; mean body height 194.8 ± 5.7 cm; mean body mass 92.3± 9.8 kg; mean PBF 10.1± 5.1; and mean VO2max50.55 ± 6.7 ml/kg/min. Quadriceps and hamstrings were measured at 60° and 180°/s, anaerobic performance was evaluated using the Wingate anaerobic power test, sprint ability was determined by single sprint performance (10-30 m), jump performance was evaluated by countermovement (CMJ) and squat jump (SJ) tests and agility performance was measured using the T drill agility test. Quadriceps strength was significantly correlated with peak power at all contraction velocities. However, for mean power, significant correlation was only found between the 60° left and 180° right knee quadriceps measurements. No measure of strength was significantly related to the measurements from/results of field tests. Moreover, strong relations were found between the performance of athletes in different field tests (p< 0.05). The use of correlation analysis is the limitation of the this study.

scholarly journals Hand and Wrist Injuries in Men’s and Women’s National Collegiate Athletic Association Basketball

2020 ◽  
Vol 8 (9) ◽  
pp. 232596712095307
Author(s):  
David G. Deckey ◽  
Kelly L. Scott ◽  
Nathaniel B. Hinckley ◽  
Justin L. Makovicka ◽  
Jeffrey D. Hassebrock ◽  
...  
Keyword(s):  
National Collegiate Athletic Association ◽  
Future Research ◽  
Surveillance Program ◽  
Wrist Injuries ◽  
Descriptive Epidemiology ◽  
Prevention Strategies ◽  
Basketball Players ◽  
Men's Basketball ◽  
Women's Basketball ◽  
Injury Recurrence

Background: Hand and wrist injuries (HWIs) are common in National Collegiate Athletic Association (NCAA) basketball players and can negatively affect performance. There is limited literature available on this topic. Purpose: To open a discussion on prevention strategies and encourage future research on HWIs in basketball athletes. Study Design: Descriptive epidemiology study. Methods: HWIs sustained by male and female NCAA basketball players during the 2009-2010 through 2013-2014 academic years and reported to the NCAA Injury Surveillance Program (NCAA-ISP) database were utilized to characterize the epidemiology thereof. Rates and distributions of HWIs were identified within the context of mechanism of injury, injury recurrence, and time lost from sport. Results: Over the 5-year period, 81 HWIs in women and 171 HWIs in men were identified through the NCAA-ISP database. These were used to estimate 3515 HWIs nationally in women’s basketball athletes and 7574 HWIs nationally in men’s basketball athletes. The rate of HWIs in women was 4.20 per 10,000 athlete-exposures (AEs) and in men was 7.76 per 10,000 AEs, making men 1.85 times more likely to sustain HWIs compared with women. In men, HWIs were 3.31 times more likely to occur in competition compared with practice, while in women, HWIs were 2.40 times more likely to occur in competition than in practice. Based on position, guards, both men and women, were the most likely to suffer HWIs. Conclusion: HWIs were common in collegiate basketball players. Most injuries were new, and the majority of players were restricted from participation for less than 24 hours. Men were more likely to be injured compared with women, and injuries were most common in the setting of competition for both sexes. The majority of injuries was considered minor and did not extensively limit participation; however, prevention and detection remain important for optimal performance.

scholarly journals Estimation of Vertical Jump Height Using Nintendo Wii Remote IR Camera

2018 ◽  
Vol 72 ◽  
pp. 02004
Author(s):  
Bhanupol Klongratog ◽  
Warit Pengto ◽  
Todsaporn Wornkert ◽  
Anupong Srongprapa
Keyword(s):  
Coordinate System ◽  
Vertical Jump ◽  
Infrared Camera ◽  
Slow Motion ◽  
Basketball Players ◽  
Nintendo Wii ◽  
Ir Camera ◽  
Conservation Of Energy ◽  
Vertical Jump Height ◽  
Vertical Leap

In this article, we proposed to measure the heights of countermovement jumps which are recorded in term of vertical leap by using the Wii Remote infrared camera. According to the physical principles, positions of the movement were detected based on the rules regarding conservation of energy, motion under gravity, and coordinate system. The obtained results were compared with that of the slow-motion measurements. The experiment involved 30 basketball players whose jump results were slightly deviated from the vertical measurement of the coordinate system. Therefore, the results should be calibrated each time the new system is installed.

scholarly journals Epidemiology of Lumbar Spine Injuries in Men’s and Women’s National Collegiate Athletic Association Basketball Athletes

2019 ◽  
Vol 7 (10) ◽  
pp. 232596711987910
Author(s):  
Justin L. Makovicka ◽  
David G. Deckey ◽  
Karan A. Patel ◽  
Jeffrey D. Hassebrock ◽  
Andrew S. Chung ◽  
...  
Keyword(s):  
Lumbar Spine ◽  
National Collegiate Athletic Association ◽  
Surveillance Program ◽  
Basketball Players ◽  
Injury Rates ◽  
Needed Information ◽  
Women's Basketball ◽  
Spine Injuries ◽  
Rate Ratios ◽  
Injury Recurrence

Background: Lumbar spine injuries (LSIs) are common in both men’s and women’s National Collegiate Athletic Association (NCAA) basketball players and can frequently lead to reinjuries and persistent pain. Purpose: To describe the epidemiology of an LSI in collegiate men’s and women’s basketball during the 2009-2010 through 2013-2014 academic years. Study Design: Descriptive epidemiology study. Methods: The incidence and characteristics of LSIs were identified utilizing the NCAA Injury Surveillance Program (ISP). Rates of injury were calculated as the number of injuries divided by the total number of athlete-exposures (AEs). AEs were defined as any student participation in 1 NCAA-sanctioned practice or competition. Incidence rate ratios (IRRs) were then calculated to compare the rates of injury between season, event type, mechanism, injury recurrence, and time lost from sport. Results: The NCAA ISP reported 124 LSIs from an average of 28 and 29 men’s and women’s teams, respectively. These were used via validated weighting methodology to estimate a total of 5197 LSIs nationally. The rate of LSIs in women was 2.16 per 10,000 AEs, while men suffered LSIs at a rate of 3.47 per 10,000 AEs. Men were 1.61 times more likely to suffer an LSI compared with women. In men, an LSI was 3.48 times more likely to occur in competition when compared with practice, while in women, an LSI was 1.36 times more likely to occur in competition than in practice. Women suffered the highest LSI rate during the postseason, while the highest rate in men was during the regular season. The majority of both female (58.9%; n = 1004) and male (73.1%; n = 2353) athletes returned to play within 24 hours of injury. Conclusion: To date, this is the largest study to characterize LSIs in NCAA basketball and provides needed information on the prevalence and timing of these injuries. The majority of injuries in both sexes were new, and most athletes returned to play in less than 24 hours. Injury rates were highest during competition in both sexes.

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