keyword
MENU ▼
Read by QxMD icon Read
search

Fleisig

keyword
https://www.readbyqxmd.com/read/29882722/effect-of-a-6-week-weighted-baseball-throwing-program-on-pitch-velocity-pitching-arm-biomechanics-passive-range-of-motion-and-injury-rates
#1
Michael M Reinold, Leonard C Macrina, Glenn S Fleisig, Kyle Aune, James R Andrews
BACKGROUND: Emphasis on enhancing baseball pitch velocity has become popular, especially through weighted-ball throwing. However, little is known about the physical effects or safety of these programs. The purpose of this study was to examine the effects of training with weighted baseballs on pitch velocity, passive range of motion (PROM), muscle strength, elbow torque, and injury rates. HYPOTHESIS: A 6-week weighted ball training program would result in a change in pitching biomechanical and physical characteristics...
June 1, 2018: Sports Health
https://www.readbyqxmd.com/read/29759988/transient-telomerase-inhibition-with-imetelstat-impacts-dna-damage-signals-and-cell-cycle-kinetics
#2
Connor Ah Thompson, Alice Gu, Sunny Yang, Veena Mathew, Helen B Fleisig, Judy My Wong
Telomerase is the ribonucleoprotein reverse transcriptase that catalyzes the synthesis of telomeres at the ends of linear chromosomes and contributes to proper telomere-loop (T-loop) formation. Formation of the T-loop, an obligate step before cell division can proceed, requires the generation of a 3'-overhang on the G-rich strand of telomeric DNA via telomerase or C-strand specific nucleases. Here, it is discovered that telomerase activity is critical for efficient cell cycle progression using transient chemical inhibition by the telomerase inhibitor, imetelstat...
May 14, 2018: Molecular Cancer Research: MCR
https://www.readbyqxmd.com/read/29687011/incidence-of-elbow-ulnar-collateral-ligament-surgery-in-collegiate-baseball-players
#3
Marcus A Rothermich, Stan A Conte, Kyle T Aune, Glenn S Fleisig, E Lyle Cain, Jeffrey R Dugas
Background: Recent reports have highlighted the progressive increase in the incidence of ulnar collateral ligament (UCL) injuries to the elbow in baseball players of all levels. However, knowledge of the incidence and other epidemiological factors regarding UCL injuries, specifically in college baseball players, is currently lacking. Purpose: To evaluate, over a period of 1 year, the incidence of UCL injuries requiring surgery in National Collegiate Athletic Association (NCAA) Division I baseball programs...
April 2018: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/29651893/differences-among-overhand-three-quarter-and-sidearm-pitching-biomechanics-in-professional-baseball-players
#4
Rafael F Escamilla, Jonathan S Slowik, Alek Z Diffendaffer, Glenn S Fleisig
The purpose of this study was to assess biomechanical differences among overhand, three-quarter, and sidearm arm-slot professional baseball pitchers. It was hypothesized that kinematic-and-kinetic differences would be found among the three groups, with sidearm pitchers demonstrating greater movement along the transverse plane, and overhead pitchers demonstrating greater movement along the sagittal plane. Based upon arm-slot-angle at ball-release, 30-overhand, 156-three-quarter, and 21-sidearm pitchers were tested using a 240-Hz-motion-analysis-system, and 37 kinematic-and-kinetic parameters were calculated...
April 13, 2018: Journal of Applied Biomechanics
https://www.readbyqxmd.com/read/29562832/kinematic-and-kinetic-differences-between-left-and-right-handed-professional-baseball-pitchers
#5
Alek Z Diffendaffer, Glenn S Fleisig, Brett Ivey, Kyle T Aune
While 10% of the general population is left-handed, 27% of professional baseball pitchers are left-handed. Biomechanical differences between left- and right-handed college pitchers have been previously reported, but these differences have yet to be examined at the professional level. Therefore, the purpose of this study was to compare pitching biomechanics between left- and right-handed professional pitchers. It was hypothesised that there would be significant kinematic and kinetic differences between these two groups...
March 21, 2018: Sports Biomechanics
https://www.readbyqxmd.com/read/29502701/editorial-commentary-changing-times-in-sports-biomechanics-baseball-pitching-injuries-and-emerging-wearable-technology
#6
EDITORIAL
Glenn S Fleisig
Research has shown relations between amount of baseball pitching and overuse injuries, as well as between poor mechanics and high loads on the elbow and shoulder. However, overuse injuries continue to be a problem from youth to professional sports. Emerging wearable technology may enable players, parents, coaches, leagues, and clinicians to monitor biomechanics during competition and training, reducing the risk of serious injury.
March 2018: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/28968146/changes-in-youth-baseball-pitching-biomechanics-a-7-year-longitudinal-study
#7
Glenn S Fleisig, Alek Z Diffendaffer, Brett Ivey, Kyle T Aune, Tony Laughlin, Dave Fortenbaugh, Becky Bolt, Wendy Lucas, Kevin D Moore, Jeffrey R Dugas
BACKGROUND: Pitching biomechanics are associated with performance and risk of injury in baseball. Previous studies have identified biomechanical differences between youth and adult pitchers but have not investigated changes within individual young pitchers as they mature. HYPOTHESIS: Pitching kinematics and kinetics will change significantly during a youth pitcher's career. STUDY DESIGN: Descriptive laboratory study. METHODS: Pitching biomechanics were captured in an indoor laboratory with a 12-camera, 240-Hz motion analysis system for 51 youth pitchers who were in their first season of organized baseball with pitching...
January 2018: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28968139/biomechanical-comparisons-among-fastball-slider-curveball-and-changeup-pitch-types-and-between-balls-and-strikes-in-professional-baseball-pitchers
#8
Rafael F Escamilla, Glenn S Fleisig, Dave Groeschner, Ken Akizuki
BACKGROUND: In professional baseball pitchers, pitching biomechanics have not been examined for the slider, and the only known study for the curveball and changeup examined limited kinetics. Moreover, no known studies have investigated pitching biomechanics between strikes and balls. Purpose/Hypothesis: The purpose was to compare pitching biomechanics in professional baseball pitchers among the fastball, slider, curveball, and changeup and between balls and strikes. It was hypothesized that pitching kinematics and kinetics would be similar among the slider, fastball, and curveball; shoulder and elbow forces and torques would be significantly lower in the changeup; and pitching biomechanics would be similar between balls and strikes...
December 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28942657/return-to-play-and-outcomes-in-baseball-players-after-superior-labral-anterior-posterior-repairs
#9
Brad D Gilliam, Lonnie Douglas, Glenn S Fleisig, Kyle T Aune, Kylie A Mason, Jeffrey R Dugas, E Lyle Cain, Roger V Ostrander, James R Andrews
BACKGROUND: Few studies have documented the outcomes of superior labral anterior-posterior (SLAP) repairs in baseball players. Furthermore, the results of these previous studies varied widely and were based on small numbers of patients. Hypothesis/Purpose: The purpose was to report return-to-play (RTP) rates and validated subjective outcome scores for baseball players after SLAP repair. It was hypothesized that RTP rates and outcomes would be significantly different between pitchers and nonpitchers, as well as among baseball levels...
January 2018: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28806094/the-relationship-of-throwing-arm-mechanics-and-elbow-varus-torque-within-subject-variation-for-professional-baseball-pitchers-across-82-000-throws
#10
Christopher L Camp, Travis G Tubbs, Glenn S Fleisig, Joshua S Dines, David M Dines, David W Altchek, Brittany Dowling
BACKGROUND: Likely due to the high level of strain exerted across the elbow during the throwing motion, elbow injuries are on the rise in baseball. To identify at-risk athletes and guide postinjury return-to-throw programs, a better understanding of the variables that influence elbow varus torque is desired. PURPOSE: To describe the within-subject relationship between elbow varus torque and arm slot and arm rotation in professional baseball pitchers. STUDY DESIGN: Descriptive laboratory study...
November 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28743205/do-baseball-pitchers-improve-mechanics-after-biomechanical-evaluations
#11
Glenn S Fleisig, Alek Z Diffendaffer, Brett Ivey, Kyle T Aune
The purpose of this study was to determine how often flaws in pitching mechanics identified from biomechanical analysis are corrected. The biomechanics of 46 baseball pitchers were evaluated twice, with an average of 12 months (range 2-48 months) between evaluations. Pitchers were healthy at the time of both evaluations, competing at the high school, college, minor league or Major League level. After warming up, each participant pitched 10 full-effort fastballs. Automated three-dimensional motion analysis was used to compute eight kinematic parameters which were compared with a database of elite professional pitchers...
July 25, 2017: Sports Biomechanics
https://www.readbyqxmd.com/read/28500954/finger-forces-in-fastball-baseball-pitching
#12
Hiroshi Kinoshita, Satoshi Obata, Daiki Nasu, Koji Kadota, Tomoyuki Matsuo, Glenn S Fleisig
Forces imparted by the fingers onto a baseball are the final, critical aspects for pitching, however these forces have not been quantified previously as no biomechanical technology was available. In this study, an instrumented baseball was developed for direct measurement of ball reaction force by individual fingers and used to provide fundamental information on the forces during a fastball pitch. A tri-axial force transducer with a cable having an easily-detachable connector were installed in an official baseball...
August 2017: Human Movement Science
https://www.readbyqxmd.com/read/28467122/return-to-play-and-decreased-performance-after-anterior-cruciate-ligament-reconstruction-in-national-football-league-defensive-players
#13
Connor R Read, Kyle T Aune, E Lyle Cain, Glenn S Fleisig
BACKGROUND: Anterior cruciate ligament (ACL) injuries occur commonly in football. Recent work has reported ACL reconstruction (ACLR) as one of several orthopaedic procedures with unfavorable outcomes for professional athletes. The performance impact to defensive players after surgery has not been quantified. PURPOSE: To quantify the effect of ACLR on the performance of defensive players by comparing them to a cohort of matched controls as well as to measure the effect of ACLR on athletes' career length in the National Football League (NFL)...
July 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28466375/impressive-and-durable-response-to-nivolumab-in-a-patient-with-metastatic-type-2-papillary-renal-cell-carcinoma-on-label-but-without-evidence
#14
Diego A Adrianzen Herrera, Sarah B Fleisig, Benjamin A Gartrell
Nivolumab is a treatment option for patients with metastatic renal cell carcinoma (RCC) previously treated with targeted antiangiogenic therapy. Papillary renal cell carcinoma (PRCC) comprises 10-15% of RCC cases but non-clear cell subtypes were excluded from the immunotherapy trials. We report the case of a woman with recurrent metastatic PRCC who had an impressive therapeutic response to nivolumab with no significant adverse events. She had previously been treated with sunitinib and pazopanib with no response...
October 2017: Investigational New Drugs
https://www.readbyqxmd.com/read/28443311/nivolumab-related-cutaneous-sarcoidosis-in-a-patient-with-lung-adenocarcinoma
#15
Mathew R Birnbaum, Michelle W Ma, Sarah Fleisig, Stuart Packer, Bijal D Amin, Mark Jacobson, Beth N McLellan
No abstract text is available yet for this article.
May 2017: JAAD Case Reports
https://www.readbyqxmd.com/read/27894146/variables-associated-with-chondral-and-meniscal-injuries-in-anterior-cruciate-ligament-surgery
#16
E Lyle Cain, Glenn S Fleisig, Brent A Ponce, Hikel A Boohaker, Martha P George, Gerald McGwin, James R Andrews, Lawrence J Lemak, William G Clancy, Jeffrey R Dugas
This article aims to evaluate factors associated with chondral and meniscal lesions in primary and revision anterior cruciate ligament (ACL) reconstructions. ACL reconstructions from 2001 to 2008 at a single institution were retrospectively analyzed. Logistic regression was used to estimate the association between chondral and meniscal injuries and age, gender, tear chronicity, additional ligamentous injuries, sport type, and participation level. Of the 3,040 ACL reconstructions analyzed, 90.4% were primary reconstructions and 9...
September 2017: Journal of Knee Surgery
https://www.readbyqxmd.com/read/27872403/biomechanical-analysis-of-weighted-ball-exercises-for-baseball-pitchers
#17
Glenn S Fleisig, Alek Z Diffendaffer, Kyle T Aune, Brett Ivey, Walter A Laughlin
BACKGROUND: Weighted-ball throwing programs are commonly used in training baseball pitchers to increase ball velocity. The purpose of this study was to compare kinematics and kinetics among weighted-ball exercises with values from standard pitching (ie, pitching standard 5-oz baseballs from a mound). HYPOTHESIS: Ball and arm velocities would be greater with lighter balls and joint kinetics would be greater with heavier balls. STUDY DESIGN: Controlled laboratory study...
May 2017: Sports Health
https://www.readbyqxmd.com/read/27278749/kinematic-comparison-of-baseball-batting-off-of-a-tee-among-various-competition-levels
#18
COMPARATIVE STUDY
Brittany Dowling, Glenn S Fleisig
Determining and understanding baseball batting mechanics at various competition levels may help players and coaches identify key kinematics crucial to being a successful hitter. The purpose of this study was to compare batting kinematics across competition levels. Kinematic and temporal data were analysed for 170 male batters (youth n = 33; high school n = 69; college n = 22; professional n = 46) using 3D motion capture (480 Hz). The results showed differences in angular positions between competition levels during the five phases of the swing, with the greatest differences seen between the youth and professional batters...
September 2016: Sports Biomechanics
https://www.readbyqxmd.com/read/27160462/anterior-cruciate-ligament-injuries-in-baseball-players
#19
Jeffrey R Dugas, Benjamin B Bedford, John S Andrachuk, Anthony J Scillia, Kyle T Aune, E Lyle Cain, James R Andrews, Glenn S Fleisig
PURPOSE: To determine common mechanisms of anterior cruciate ligament (ACL) injury in baseball players and to quantify the rate of return to play after primary surgical reconstruction and review intermediate clinical outcomes. METHODS: Surgical injuries involving the ACL in youth, high school, collegiate, and professional baseball players were queried for an 11-year period (2001 to 2011). Over the study period, 42 baseball players were identified who had undergone arthroscopically assisted primary ACL reconstruction by 1 of 3 attending surgeons...
November 2016: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/27110899/differences-among-fastball-curveball-and-change-up-pitching-biomechanics-across-various-levels-of-baseball
#20
Glenn S Fleisig, Walter A Laughlin, Kyle T Aune, E Lyle Cain, Jeffrey R Dugas, James R Andrews
Controversy continues whether curveballs are stressful for young baseball pitchers. Furthermore, it is unproven whether professional baseball pitchers have fewer kinematic differences between fastballs and off-speed pitches than lower level pitchers. Kinematic and kinetic data were measured for 111 healthy baseball pitchers (26 youth, 21 high school, 20 collegiate, 26 minor league, and 18 major league level) throwing fastballs, curveballs, and change-ups in an indoor biomechanics laboratory with a high-speed, automated digitising system...
June 2016: Sports Biomechanics
keyword
keyword
14381
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"