Dynamic single-leg control of the lower limb during running and related sports, such as football and field hockey, may contribute to the development and persistence of lower limb pain and injury. 1 One of the most prominent features of poor single-leg control is dynamic (or apparent) knee valgus
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Athletes Rated as Poor Single-Leg Squat Performers Display Measurable Differences in Single-Leg Squat Biomechanics Compared With Good Performers
Lachlan E. Garrick, Bryce C. Alexander, Anthony G. Schache, Marcus G. Pandy, Kay M. Crossley, and Natalie J. Collins
Load Accommodation Strategies and Movement Variability in Single-Leg Landing
Andrew D. Nordin and Janet S. Dufek
PCA. 16 Our purpose was therefore to examine changes in participant-specific single-leg landing strategies and intra-individual movement variability following alterations in mechanical task demands via external load and landing height. We used the Load Accommodation Strategies Model 17 , 21 – 23 to
Patellofemoral Joint Loading During Single-Leg Hopping Exercises
Abbigail Ristow, Matthew Besch, Drew Rutherford, and Thomas W. Kernozek
descending stairs, 12 , 13 single-leg squatting, 14 , 15 single-leg drop landings, 5 and single-leg vertical jumps 2 compared with those without PFP. Treatment for PFP commonly involves interventions to alter lower-extremity biomechanics either proximal or distal to the patellofemoral joint (PFJ) itself
The Development and Reliability of 4 Clinical Neurocognitive Single-Leg Hop Tests: Implications for Return to Activity Decision-Making
Nathan Millikan, Dustin R. Grooms, Brett Hoffman, and Janet E. Simon
4 new neurocognitive single-leg hop tests based on the 4 original single-leg hop tests proposed by Noyes et al 8 who incorporate measurable reaction time components that mimic sport demands and (2) determine the test–retest reliability of the new neurocognitive hop tests. Methods Design This study
Single-Leg Squat Delicacies—The Position of the Nonstance Limb is an Important Consideration
Benita Olivier, Samantha-Lynn Quinn, Natalie Benjamin, Andrew Craig Green, Jessica Chiu, and Weijie Wang
The single-leg squat task is used as a rehabilitative exercise 1 , 2 or as a screening tool 3 , 4 for the functional movement of the lower limb. The presence of pathology influences the way in which the single-leg squat is performed. On performing the single-leg squat, individuals with
Weak Hip Strength Increases Dynamic Knee Valgus in Single-Leg Tasks of Collegiate Female Athletes
Kyndell R. Crowell, Ryan D. Nokes, and Nicole L. Cosby
alterations to balance. 2 – 11 The improper movement pattern associated with DKV is further emphasized during dynamic movements, especially in single-leg tasks when balance is incorporated into the movement, such as in single-leg landing and single-leg jumping maneuvers. 2 The most recent literature on
Profiling Single-Leg Balance by Leg Preference and Position in Rugby Union Athletes
Scott R. Brown, Matt Brughelli, and Seth Lenetsky
scores. In this sporting context, it has been suggested ( Emery, 2003 ; McKeon & Hertel, 2008 ) that the single-leg balance most accurately replicates sporting movements and may better encompass an athlete’s potential to maintain balance as opposed to bilateral (two-legged) balance. Further, as athletes
Single-Leg Hop Stabilization Throughout Concussion Recovery: A Preliminary Biomechanical Assessment
Landon B. Lempke, Matthew C. Hoch, Jarrod A. Call, Julianne D. Schmidt, and Robert C. Lynall
neuromuscular demands during sport activities likely exceed those required to complete the current multidimensional concussion assessment battery. 3 , 4 For example, previous work has identified that reaction time from jumping, cutting, and single-leg hop tasks do not correlate with reaction time from clinical
Effect of Cognitive Loading on Single-Leg Jump Landing Biomechanics of Elite Male Volleyball Players
Sima Mohammad Amoli, Peyman Aghaie Ataabadi, Amir Letafatkar, Gary B. Wilkerson, and Misagh B. Mansouri
Anterior cruciate ligament (ACL) injury is common among athletes who participate in sports that require cutting movements and single-leg landings, 1 – 3 with high incidence of ACL injuries in sports such as basketball, netball, handball, and volleyball. 4 – 6 Kinematics analyses have demonstrated
Asymmetries in Two-Dimensional Trunk and Knee Kinematics During a Single-Leg Drop Landing Post Anterior Cruciate Ligament Reconstruction
Mark Vorensky, Daniel Peredo, Wil Colón, Smita Rao, and Rumit Singh Kakar
) testing helps to inform return to play decision making, 9 typically assessing strength, single-leg hopping ability, and self-reported function. 9 , 10 A potentially critical criteria underrepresented in RTS testing 9 , 10 is the assessment of single-leg landing mechanics. Single-leg landing mechanics
