scholarly journals Characteristics of ground reaction force and frontal body movement during failed trials of single-leg lateral drop jump-landing task

2021 ◽  
Vol 26 ◽  
pp. 8-14
Author(s):  
Kenji Hirohata ◽  
Junya Aizawa ◽  
Takehiro Ohmi ◽  
Shunsuke Ohji ◽  
Kazuyoshi Yagishita
Keyword(s):  
Ground Reaction Force ◽  
Body Movement ◽  
Reaction Force ◽  
Drop Jump ◽  
Jump Landing

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.

GROUND REACTION FORCE CHARACTERISTICS OF A DROP-JUMP PERFORMED BAREFOOT AND WITH SHOES

2001 ◽  
Vol 33 (5) ◽  
pp. S239
Author(s):  
M N. Reid ◽  
J A. Mercer ◽  
J S. Dufek ◽  
B C. Mangus
Keyword(s):  
Ground Reaction Force ◽  
Reaction Force ◽  
Drop Jump ◽  
Force Characteristics

Effects of drop jump height and technique on ground reaction force with possible implication for injury

2001 ◽  
Vol 10 (2) ◽  
pp. 83-93 ◽  
Author(s):  
Robert U. Newton ◽  
Warren B. Young ◽  
William J. Kraemer ◽  
Chris Byrne
Keyword(s):  
Ground Reaction Force ◽  
Reaction Force ◽  
Jump Height ◽  
Drop Jump

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 Utility of Kinetic and Kinematic Jumping and Landing Variables as Predictors of Injury Risk: A Systematic Review

2020 ◽  
Vol 2 (4) ◽  
pp. 287-304 ◽  
Author(s):  
Jason S. Pedley ◽  
Rhodri S. Lloyd ◽  
Paul J. Read ◽  
Isabel S. Moore ◽  
Mark De Ste Croix ◽  
...  
Keyword(s):  
Performance Measures ◽  
Injury Risk ◽  
Reaction Force ◽  
Separation Distance ◽  
Lower Extremity Injury ◽  
Ground Reaction Forces ◽  
Drop Jump ◽  
Jump Landing ◽  
Risk Of Injury ◽  
Reaction Forces

Abstract Purpose Jump-landing assessments provide a means to quantify an individual’s ability to attenuate ground reaction forces, generate lower limb explosive power and maintain joint alignment. In order to identify risk factors that can be targeted through appropriate training interventions, it is necessary to establish which (scalar) objective kinetic, kinematic, and performance measures are most associated with lower-extremity injury. Methods Online searches of MEDLINE, SCOPUS, EBSCOHost, SPORTDiscus and PubMed databases were completed for all articles published before March 2020 in accordance with PRISMA guidelines. Results 40 articles investigating nine jump-landing assessments were included in this review. The 79% of studies using drop jump (n = 14) observed an association with future injury, while only 8% of countermovement jump studies (n = 13) observed an association with injury risk. The 57% of studies using unilateral assessments found associations with risk of injury (n = 14). Studies using performance measures (jump height/distance) as outcome measure were only associated with injury risk in 30% of cases. However, those using kinetic and/or kinematic analyses (knee abduction moment, knee valgus angle, knee separation distance, peak ground reaction force) found associations with injury in 89% of studies. Conclusion The landing element of jump-landing assessments appears to be superior for identifying individuals at greater risk of injury; likely due to a closer representation of the injury mechanism. Consequently, jump-landing assessments that involve attenuation of impact forces such as the drop jump appear most suited for this purpose but should involve assessment of frontal plane knee motion and ground reaction forces.

scholarly journals Performance on a Single-Legged Drop-Jump Landing Test Is Related to Increased Risk of Lateral Ankle Sprains Among Male Elite Soccer Players: A 3-Year Prospective Cohort Study

2018 ◽  
Vol 46 (14) ◽  
pp. 3454-3462 ◽  
Author(s):  
Duncan P. Fransz ◽  
Arnold Huurnink ◽  
Idsart Kingma ◽  
Vosse A. de Boode ◽  
Ide C. Heyligers ◽  
...  
Keyword(s):  
Risk Factors ◽  
Ankle Sprain ◽  
Reaction Force ◽  
Soccer Players ◽  
Ankle Sprains ◽  
Drop Jump ◽  
Lateral Ankle ◽  
Jump Landing ◽  
Increased Risk

Background: Soccer has a high injury rate, with lateral ankle sprains being a common injury. Therefore, an approach to prevent or at least reduce the occurrence is warranted. Injury prevention can be improved by identifying specific risk factors and individuals at risk. Purpose: To assess drop-jump landing performance as a potential predictor of lateral ankle sprain within 3-year follow-up. Study Design: Case-control study; Level of evidence, 3. Methods: Single-legged drop-jump landing tests were performed by 190 elite soccer players. Based on ground-reaction forces, 6 outcome measures were calculated that aim to reflect the impact and stabilization phase. Lateral ankle sprains were registered during up to 3 years of follow-up. Following a z score correction for age, a multivariate regression analysis was performed. Results: During follow-up, 45 players (23.7%) suffered a primary lateral ankle sprain. Of those, 34 were regarded as severe (absence >7 days). Performance was related to increased risk of ankle sprain ( P = .005 for all sprains and P = .001 for severe sprains). Low mediolateral stability for the first 0.4 seconds after landing (a larger value indicates more force exerted in the mediolateral direction, resulting in rapid lateral stabilization) and high horizontal ground-reaction force between 3.0 and 5.0 seconds (a smaller value indicates less sway in the stabilization phase) were identified as risk factors. A player that scored 2 SD below average for both risk factors had a 4.4-times-higher chance of sustaining an ankle sprain than a player who scored average. Conclusion: The current study showed that following a single-legged drop-jump landing, mediolateral force over 0 to 0.4 seconds and/or mean resultant horizontal ground-reaction force over 3 to 5 seconds has predictive value with regard to the occurrence of an ankle sprain among male elite soccer players within 3 years.

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