The Effects of Sprinting Induced Fatigue on Ground Reaction Force Symmetry in Jump Landing Kinetics

2006 ◽  
Vol 38 (Supplement) ◽  
pp. S400
Author(s):  
Mindy Bennett ◽  
Kathy Berg ◽  
Chad Harris ◽  
Kristof Kipp ◽  
Mark DeBeliso ◽  
...  
Keyword(s):  
Ground Reaction Force ◽  
Reaction Force ◽  
Jump Landing

Patellar Tendon Straps Decrease Pain and May Alter Lower Extremity Kinetics in Those With Patellar Tendinopathy During Jump Landing

2017 ◽  
Vol 22 (4) ◽  
pp. 51-57 ◽  
Author(s):  
Adam B. Rosen ◽  
Jupil Ko ◽  
Kathy J. Simpson ◽  
Cathleen N. Brown
Keyword(s):  
Lower Extremity ◽  
Patellar Tendon ◽  
Ground Reaction Force ◽  
Reaction Force ◽  
Patellar Tendinopathy ◽  
Jump Landing ◽  
Drop Jumps ◽  
Kinetics Of

Patellar tendinopathy is often managed with a patellar tendon strap, however, their effectiveness is unsubstantiated. The purpose of this study was to determine if straps altered pain or lower extremity kinetics of individuals with patellar tendinopathy during landing. Thirty participants with patellar tendinopathy and 30 controls completed drop jumps with and without patellar tendon straps. Wearing the strap, tendinopathy participants demonstrated significantly decreased pain and reduced knee adductor moment; all participants displayed significantly decreased anterior ground reaction force while wearing a strap. Patellar tendon strapping may reduce pain due to alterations in direction and magnitude of loading.

scholarly journals Correlations between Pre-landing Sagittal Plane Kinematics and Posterior Ground Reaction Force during Single-leg Anterior Jump-landing

2017 ◽  
Vol 32 (6) ◽  
pp. 751-755
Author(s):  
Shunsuke OHJI ◽  
Junya AIZAWA ◽  
Kenji HIROHATA ◽  
Takehiro OHMI ◽  
Kazuyoshi YAGISHITA
Keyword(s):  
Ground Reaction Force ◽  
Sagittal Plane ◽  
Reaction Force ◽  
Jump Landing

scholarly journals Different Modes of Feedback and Peak Vertical Ground Reaction Force During Jump Landing: A Systematic Review

2013 ◽  
Vol 48 (5) ◽  
pp. 685-695 ◽  
Author(s):  
Hayley M. Ericksen ◽  
Phillip A. Gribble ◽  
Kate R. Pfile ◽  
Brian G. Pietrosimone
Keyword(s):  
Beneficial Effect ◽  
Ground Reaction Force ◽  
Injury Risk ◽  
Data Extraction ◽  
Reaction Force ◽  
Final Analysis ◽  
Vertical Ground Reaction Force ◽  
Lower Extremity Injuries ◽  
Jump Landing ◽  
Standardized Effect Sizes

Context: Excessive ground reaction force when landing from a jump may result in lower extremity injuries. It is important to better understand how feedback can influence ground reaction force (GRF) and potentially reduce injury risk. Objective: To determine the effect of expert-provided (EP), self-analysis (SA), and combination EP and SA (combo) feedback on reducing peak vertical GRF during a jump-landing task. Data Sources: We searched the Web of Science database on July 1, 2011; using the search terms ground reaction force, landing biomechanics, and feedback elicited 731 initial hits. Study Selection: Of the 731 initial hits, our final analysis included 7 studies that incorporated 32 separate data comparisons. Data Extraction: Standardized effect sizes and 95% confidence intervals (CIs) were calculated between pretest and posttest scores for each feedback condition. Data Synthesis: We found a homogeneous beneficial effect for combo feedback, indicating a reduction in GRF with no CIs crossing zero. We also found a homogeneous beneficial effect for EP feedback, but the CIs from 4 of the 10 data comparisons crossed zero. The SA feedback showed strong, definitive effects when the intervention included a videotape SA, with no CIs crossing zero. Conclusions: Of the 7 studies reviewed, combo feedback seemed to produce the greatest decrease in peak vertical GRF during a jump-landing task.

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