determination of ball release, the calculation of instantaneous ball velocity, and the computation of joint kinetics. Ball velocity was calculated as an instantaneous velocity, utilizing a 3-point differentiation of the ball after it left the pitcher’s hand. The markers placed on the ball are known to decrease
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Lead Foot Progression Angle in Baseball Pitchers: Implications to Ball Velocity and Upper-Extremity Joint Moments
Matthew J. Solomito, Andrew D. Cohen, Erin J. Garibay, and Carl W. Nissen
The Effect of Cryotherapy Application to the Knee Joint on Dynamic Postural Stability
Karl Fullam, Brian Caulfield, Garrett F. Coughlan, Wayne McNulty, David Campbell, and Eamonn Delahunt
< .01 (2-tailed). The mean difference in COMP reach distance score was 2.81%MAXD with a 95% confidence interval ranging from 1.97 to 3.64. Kinetics There was no statistically significant difference in FD for the ANT reach direction from precryotherapy (1.50 [0.12]) to postcryotherapy (1.55 [0.13]), t
Relationships Between Arch Height Flexibility and Medial–Lateral Ground Reaction Forces in Rearfoot and Forefoot Strike Runners
Caleb D. Johnson and Irene S. Davis
patterns based on kinetics and kinematics . In: ISBS-Conference Proceedings Archive , Vol 1 ; 2007 : 252 – 255 . 11. Stearne SM , Alderson JA , Green BA , Donnelly CJ , Rubenson J . Joint kinetics in rearfoot versus forefoot running: implications of switching technique . Med Sci Sports
The Within-Subjects Effects of Practice on Performance of Drop Landing in Healthy, Young Adults
James Hackney, Jade McFarland, David Smith, and Clinton Wallis
alters lower extremity muscle activity and kinetics in drop jumps vs drop landings . The Journal of Strength & Conditioning Research, 25 ( 10 ), 2781 – 2788 . PubMed ID: 21873898 doi:10.1519/JSC.0b013e31820f50b6 10.1519/JSC.0b013e31820f50b6 Bartlett , R. , Wheat , J. , & Robins , M. ( 2007
Effect of Fatigue on Hip and Knee Joint Biomechanics in Anterior Cruciate Ligament Deficient Patients
Komeil Dashti Rostami and Abbey Thomas
to better design rehabilitation programs. Therefore, this study examined the effects of fatigue on hip and knee kinematics and kinetics in ACLD patients compared with healthy individuals during single-leg drop landing. We hypothesized the ACLD patients would display different hip and knee
Response of Knee Joint Biomechanics to Landing Under Internal and External Focus of Attention in Female Volleyball Players
Lukáš Slovák, David Zahradník, William M. Land, Javad Sarvestan, Joseph Hamill, and Reza Abdollahipour
ACL loading. Consequently, the aim of the present study was to investigate the effect of attentional focus instructions on the point-by-point changes in the kinematics (i.e., knee angles and angular velocities) and kinetics (i.e., force, moments, and knee energy absorption) of drop jump landings. In
Effectiveness of Augmented Feedback on Drop Landing Using Baseline Vertical Ground Reaction in Female Athletes
Becky Heinert, Drew Rutherford, and Thomas W. Kernozek
jumping. No current consensus exists regarding the optimal frequency and dosage of augmented feedback. However, more investigations appear warranted. Limitations Despite drop landing being widely used in studies to evaluate kinematics and kinetics that may be related to knee injury, this task may lack
Lower Limb Extension Power is Associated With Slope Walking Joint Loading Mechanics in Older Adults
Peter B. Thomsen, Jacob W. Aumeier, Chelsey A. Wilbur, Evan G. Oro, Hunter B. Carlson, and Jesse C. Christensen
of finding false positive predictors. 22 We obtained 1000 models using 1000 random bootstrap samples with replacement from the original data set. The initial BIF analysis included the kinematics (joint angles) and kinetics (joint moment and power) of the hip, knee, and ankle during the 2 phases of
Influence of Music Style and Rate on Repetitive Finger Tapping
Elizabeth L. Stegemöller, Joshua R. Tatz, Alison Warnecke, Paul Hibbing, Brandon Bates, and Andrew Zaman
kinematics and kinetics were recorded. Our primary hypothesis is that music, regardless of style, compared with the tone-only condition will increase movement amplitude and decrease movement variability at both movement rates. Methods Participants A total of 31 HYAs (16 women, 30 right-hand dominant, age [ M
Kinematic Correlates of Kinetic Outcomes Associated With Running-Related Injury
Christopher Napier, Christopher L. MacLean, Jessica Maurer, Jack E. Taunton, and Michael A. Hunt
conducted on a treadmill and while kinetics have been shown to be similar between treadmill and overground running, 40 , 41 some differences in kinematics have been documented (decreased step length and heel to center of mass distance, 42 more flexed knee at initial contact, 42 more midfoot
