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Motion analysis in basketball

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https://www.readbyqxmd.com/read/29065078/biomechanical-differences-of-multidirectional-jump-landings-among-female-basketball-and-soccer-players
#1
Jeffrey B Taylor, Kevin R Ford, Randy J Schmitz, Scott E Ross, Terry A Ackerman, Sandra J Shultz
Taylor, JB, Ford, KR, Schmitz, RJ, Ross, SE, Ackerman, TA, and Shultz, SJ. Biomechanical differences of multidirectional jump landings among female basketball and soccer players. J Strength Cond Res 31(11): 3034-3045, 2017-Anterior cruciate ligament (ACL) injury prevention programs are less successful in basketball than soccer and may be due to distinct movement strategies that these athletes develop from sport-specific training. The purpose of this study was to identify biomechanical differences between female basketball and soccer players during multidirectional jump landings...
November 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28840276/two-dimensional-motion-analysis-of-dynamic-knee-valgus-identifies-female-high-school-athletes-at-risk-of-non-contact-anterior-cruciate-ligament-injury
#2
Hitoaki Numata, Junsuke Nakase, Katsuhiko Kitaoka, Yosuke Shima, Takeshi Oshima, Yasushi Takata, Kengo Shimozaki, Hiroyuki Tsuchiya
PURPOSE: Female athletes are at greater risk of non-contact ACL injury. Three-dimensional kinematic analyses have shown that at-risk female athletes have a greater knee valgus angle during drop jumping. The purpose of this study was to evaluate the relationship between knee valgus angle and non-contact ACL injury in young female athletes using coronal-plane two-dimensional (2D) kinematic analyses of single-leg landing. METHODS: Two hundred ninety-one female high school athletes newly enrolled in basketball and handball clubs were assessed...
August 24, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/28801751/activity-demands-during-multi-directional-team-sports-a-systematic-review
#3
REVIEW
Jeffrey B Taylor, Alexis A Wright, Steven L Dischiavi, M Allison Townsend, Adam R Marmon
BACKGROUND: Late-stage rehabilitation programs often incorporate 'sport-specific' demands, but may not optimally simulate the in-game volume or intensity of such activities as sprinting, cutting, jumping, and lateral movement. OBJECTIVE: The aim of this review was to characterize, quantify, and compare straight-line running and multi-directional demands during sport competition. DATA SOURCES: A systematic review of PubMed, CINAHL, SPORTDiscus, and Cochrane Central Register of Controlled Trials databases was conducted...
December 2017: Sports Medicine
https://www.readbyqxmd.com/read/28723822/biomechanical-differences-in-female-basketball-and-soccer-players-during-multi-directional-jump-landings
#4
Jeffrey B Taylor, Kevin R Ford, Randy J Schmitz, Scott E Ross, Terry A Ackerman, Sandra J Shultz
Anterior cruciate ligament injury prevention programs are less successful in basketball than soccer and may be due to distinct movement strategies that these athletes develop from sport-specific training. The purpose of this study was to identify biomechanical differences between female basketball and soccer players during multi-directional jump landings. Lower extremity biomechanics of eighty-nine female athletes who played competitive basketball (n=40) or soccer (n=49) at the middle- or high-school level were analyzed with three-dimensional motion analysis during a drop vertical jump (DVJ), double- (SAG-DL) and single-leg forward jump (SAG-SL), and double- (FRONT-DL) and single-leg (FRONT-SL) lateral jump...
July 14, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28445227/a-review-of-player-monitoring-approaches-in-basketball-current-trends-and-future-directions
#5
Jordan L Fox, Aaron T Scanlan, Robert Stanton
Fox, JL, Scanlan, AT, and Stanton, R. A review of player monitoring approaches in basketball: current trends and future directions. J Strength Cond Res 31(7): 2021-2029, 2017-Effective monitoring of players in team sports such as basketball requires an understanding of the external demands and internal responses, as they relate to training phases and competition. Monitoring of external demands and internal responses allows coaching staff to determine the dose-response associated with the imposed training load (TL), and subsequently, if players are adequately prepared for competition...
July 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28336150/effects-of-foot-rotation-positions-on-knee-valgus-during-single-leg-drop-landing-implications-for-acl-injury-risk-reduction
#6
P S P Teng, P W Kong, K F Leong
BACKGROUND: Non-contact anterior cruciate ligament (ACL) injuries commonly occur when athletes land in high risk positions such as knee valgus. The position of the foot at landing may influence the transmission of forces from the ankle to the knee. Using an experimental approach to manipulate foot rotation positions, this study aimed to provide new insights on how knee valgus during single-leg landing may be influenced by foot positions. METHODS: Eleven male recreational basketball players performed single-leg drop landings from a 30-cm high platform in three foot rotation positions (toe-in, toe-forward and toe-out) at initial contact...
March 20, 2017: Knee
https://www.readbyqxmd.com/read/28113142/court-reconstruction-for-camera-calibration-in-broadcast-basketball-videos
#7
Pei-Chih Wen, Wei-Chih Cheng, Yu-Shuen Wang, Hung-Kuo Chu, Nick C Tang, Hong-Yuan Mark Liao
We introduce a technique of calibrating camera motions in basketball videos. Our method particularly transforms player positions to standard basketball court coordinates and enables applications such as tactical analysis and semantic basketball video retrieval. To achieve a robust calibration, we reconstruct the panoramic basketball court from a video, followed by warping the panoramic court to a standard one. As opposed to previous approaches, which individually detect the court lines and corners of each video frame, our technique considers all video frames simultaneously to achieve calibration; hence, it is robust to illumination changes and player occlusions...
May 2016: IEEE Transactions on Visualization and Computer Graphics
https://www.readbyqxmd.com/read/27872123/effect-of-external-ankle-support-on-ankle-and-knee-biomechanics-during-the-cutting-maneuver-in-basketball-players
#8
Nardia-Rose Klem, Catherine Y Wild, Sian A Williams, Leo Ng
BACKGROUND: Despite the high prevalence of lower extremity injuries in female basketball players as well as a high proportion of athletes who wear ankle braces, there is a paucity of research pertaining to the effects of ankle bracing on ankle and knee biomechanics during basketball-specific tasks. PURPOSE: To compare the effects of a lace-up brace (ASO), a hinged brace (Active T2), and no ankle bracing (control) on ankle and knee joint kinematics and joint reaction forces in female basketball athletes during a cutting maneuver...
March 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/27637264/stiff-landings-are-associated-with-increased-acl-injury-risk-in-young-female-basketball-and-floorball-players
#9
Mari Leppänen, Kati Pasanen, Urho M Kujala, Tommi Vasankari, Pekka Kannus, Sami Äyrämö, Tron Krosshaug, Roald Bahr, Janne Avela, Jarmo Perttunen, Jari Parkkari
BACKGROUND: Few prospective studies have investigated the biomechanical risk factors of anterior cruciate ligament (ACL) injury. PURPOSE: To investigate the relationship between biomechanical characteristics of vertical drop jump (VDJ) performance and the risk of ACL injury in young female basketball and floorball players. STUDY DESIGN: Cohort study; Level of evidence, 3. METHODS: At baseline, a total of 171 female basketball and floorball players (age range, 12-21 years) participated in a VDJ test using 3-dimensional motion analysis...
February 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/27504515/court-reconstruction-for-camera-calibration-in-broadcast-basketball-videos
#10
Pei-Chih Wen, Wei-Chih Cheng, Yu-Shuen Wang, Hung-Kuo Chu, Nick C Tang, Hong-Yuan Mark Liao
We introduce a technique of calibrating camera motions in basketball videos. Our method particularly transforms player positions to standard basketball court coordinates and enables applications such as tactical analysis and semantic basketball video retrieval. To achieve a robust calibration, we reconstruct the panoramic basketball court from a video, followed by warping the panoramic court to a standard one. As opposed to previous approaches, which individually detect the court lines and corners of each video frame, our technique considers all video frames simultaneously to achieve calibration; hence, it is robust to illumination changes and player occlusions...
May 2016: IEEE Transactions on Visualization and Computer Graphics
https://www.readbyqxmd.com/read/27406469/application-of-force-length-curve-for-determination-of-leg-stiffness-during-a-vertical-jump
#11
Artur Struzik, Jerzy Zawadzki
PURPOSE: The aim of this study was to present the methodology for estimation of a leg stiffness during a countermovement jump. The question was asked whether leg stiffness in the countermovement and take-off phases are similar to each other as demonstrated in previous reports. It was also examined whether the stiffness in left lower limb is similar to the one in right lower limb. METHODS: The research was conducted on 35 basketball players. Each participant performed three countermovement jumps with arm swing to the maximum height...
2016: Acta of Bioengineering and Biomechanics
https://www.readbyqxmd.com/read/27274114/performance-profile-of-ncaa-division-i-men-s-basketball-games-and-training-sessions
#12
D Conte, A Tessitore, K Smiley, C Thomas, T G Favero
This study aimed to analyse live and stoppage time phases, their ratio, and action played on half and full court in college basketball games. Differences were assessed for the entire games and between halves. Moreover, differences of the live/stoppage time ratio were analysed between games and game-based conditioning drills. Ten games as well as fifteen defensive, fourteen offensive and six scrimmage-type drills of the same division I men's college team (13 players) were analysed using time-motion analysis technique...
June 2016: Biology of Sport
https://www.readbyqxmd.com/read/26868894/fitness-field-tests-correlation-with-game-performance-in-u-19-category-basketball-referees
#13
Mohamed Ali Nabli, Nidhal Ben Abdelkrim, Imed Jabri, Tahar Batikh, Carlo Castagna, Karim Chamari
PURPOSE: To examine the relation between game performance, physiological responses, and field-test results in Tunisian basketball referees. METHODS: Computerized time-motion analysis, heart rate (HR), and blood lactate concentration [La(-)] were measured in 15 referees during 8 competitive games (under-19-y-old Tunisian league). Referees also performed a repeated-sprint test (RSA), Yo-Yo Intermittent Recovery Test level 1 (YYIRTL1), agility T-test, and 30-m sprint with 10-m lap time...
November 2016: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/26855624/young-females-exhibit-decreased-coronal-plane-postural-stability-compared-to-young-males
#14
Robert H Brophy, Jonathon R Staples, John Motley, Ryan Blalock, Karen Steger-May, Mark Halstead
BACKGROUND: Female athletes are at significantly higher risk of noncontact ACL injury than males, particularly in pivoting sports such as soccer and basketball. Sex-based differences in proprioception and core stability may contribute to this elevated risk. QUESTIONS/PURPOSE: This study evaluates a novel method of assessing dynamic stability to test the hypothesis that healthy adolescent controls have sex-based differences in postural stability. METHODS: Seventy-nine male and 72 female subjects completed three rounds of dynamic postural stability testing...
February 2016: HSS Journal: the Musculoskeletal Journal of Hospital for Special Surgery
https://www.readbyqxmd.com/read/26701826/knee-control-and-jump-landing-technique-in-young-basketball-and-floorball-players
#15
COMPARATIVE STUDY
M Leppänen, K Pasanen, J-P Kulmala, U M Kujala, T Krosshaug, P Kannus, J Perttunen, T Vasankari, J Parkkari
Poor knee alignment is associated with increased loading of the joints, ligaments and tendons, and may increase the risk of injury. The study purpose was to compare differences in knee kinematics between basketball and floorball players during a vertical drop jump (VDJ) task. We wanted to investigate whether basketball players, whose sport includes frequent jump-landings, exhibited better knee control compared with floorball players, whose sport involves less jumping. Complete data was obtained from 173 basketball and 141 floorball players...
April 2016: International Journal of Sports Medicine
https://www.readbyqxmd.com/read/26491609/the-influence-of-hip-strength-on-knee-kinematics-during-a-single-legged-medial-drop-landing-among-competitive-collegiate-basketball-players
#16
Hidetomo Suzuki, Go Omori, Daisuke Uematsu, Katsutoshi Nishino, Naoto Endo
BACKGROUND: A smaller knee flexion angle and larger knee valgus angle during weight-bearing activities have been identified as risk factors for non-contact anterior cruciate ligament (ACL) injuries. To prevent such injuries, attention has been focused on the role of hip strength in knee motion control. However, gender differences in the relationship between hip strength and knee kinematics during weight-bearing activities in the frontal plane have not been evaluated. HYPOTHESIS/PURPOSE: The purpose of this study was to determine the influence of hip strength on knee kinematics in both genders during a single-legged landing task in the frontal plane...
October 2015: International Journal of Sports Physical Therapy
https://www.readbyqxmd.com/read/26284807/position-dependent-cardiovascular-response-and-time-motion-analysis-during-training-drills-and-friendly-matches-in-elite-male-basketball-players
#17
Lorena Torres-Ronda, Angel Ric, Ivan Llabres-Torres, Bernat de Las Heras, Xavi Schelling I Del Alcazar
The purpose of this study was to measure differences in the cardiovascular workload (heart rate [HR]) and time-motion demands between positional groups, during numerous basketball training drills, and compare the results with in-game competition demands. A convenience sample of 14 top-level professional basketball players from the same club (Spanish First Division, ACB) participated in the study. A total of 146 basketball exercises per player (performed over an 8-week period in 32 team training sessions throughout the competitive season) and 7 friendly matches (FM) played during the preparatory phase were analyzed...
January 2016: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/26141162/opportunities-for-measuring-wheelchair-kinematics-in-match-settings-reliability-of-a-three-inertial-sensor-configuration
#18
R M A van der Slikke, M A M Berger, D J J Bregman, A H Lagerberg, H E J Veeger
Knowledge of wheelchair kinematics during a match is prerequisite for performance improvement in wheelchair basketball. Unfortunately, no measurement system providing key kinematic outcomes proved to be reliable in competition. In this study, the reliability of estimated wheelchair kinematics based on a three inertial measurement unit (IMU) configuration was assessed in wheelchair basketball match-like conditions. Twenty participants performed a series of tests reflecting different motion aspects of wheelchair basketball...
September 18, 2015: Journal of Biomechanics
https://www.readbyqxmd.com/read/25970663/longitudinal-increases-in-knee-abduction-moments-in-females-during-adolescent-growth
#19
Timothy E Hewett, Gregory D Myer, Adam W Kiefer, Kevin R Ford
PURPOSE: Knee abduction moment (KAM) is an injury risk factor for anterior cruciate ligament (ACL) injury that shows divergent incidence between males and females during adolescence. The objective of this study was to determine the relation between skeletal growth and increased KAM. The hypotheses tested were that females would demonstrate peak KAM during landing at peak height velocity (PHV) and that they would diverge from males at PHV. METHODS: The subject pool consisted of 674 females and 218 males (1387 female and 376 male assessments) who participated in a preseason testing session before their basketball or soccer seasons...
December 2015: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/25932983/fluctuations-in-activity-demands-across-game-quarters-in-professional-and-semiprofessional-male-basketball
#20
Aaron T Scanlan, Patrick S Tucker, Ben J Dascombe, Daniel M Berkelmans, Matthew I Hiskens, Vincent J Dalbo
Examination of activity demands and stoppage durations across game periods provides useful insight concerning fatigue, tactical strategies, and playing pace in team sports such as basketball. Therefore, the aims of this study were to quantify and compare game activity fluctuations across quarters in professional and semiprofessional basketball players. Video-based time-motion analyses were conducted across multiple games. Frequencies, total durations (in seconds), total distances (in meters), and mean velocities (in meters per second) were calculated for low-intensity movement (≤3 m·s), high-intensity movement (>3 m·s), shuffling, and dribbling activity...
November 2015: Journal of Strength and Conditioning Research
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