Open Access. Powered by Scholars. Published by Universities.®
Articles 1 - 3 of 3
Full-Text Articles in Medicine and Health Sciences
Fatigue Does Not Increase Limb Asymmetry Or Induce Proximal Joint Power Shift In Habitual, Multi-Speed Runners, Shayne Vial, Jodie Cochrane Wilkie, Mitchell Turner, Anthony J. Blazevich
Fatigue Does Not Increase Limb Asymmetry Or Induce Proximal Joint Power Shift In Habitual, Multi-Speed Runners, Shayne Vial, Jodie Cochrane Wilkie, Mitchell Turner, Anthony J. Blazevich
Research outputs 2022 to 2026
During prolonged jogging, joint moment and work tend to decrease in the distal (ankle) joint but increase at proximal (hip/knee) joints as performance fatigue manifests, and such adaptations might be expected to occur in sprinting. Fatigue is also thought to increase inter-limb asymmetries, which is speculated to influence injury risk. However, the effects of fatigue on sprint running gait have been incompletely studied, so these hypotheses remain untested. Using statistical parametric mapping, we compared 3-D kinematics and ground reaction force production between the dominant (DL) and non-dominant (NDL) legs of 13 soccer players during both non-fatigued and fatigued sprint running. …
Does Fatigue Influence Joint-Specific Work And Ground Force Production During The First Steps Of Maximal Acceleration?, Shayne Vial, Jodie C. Wilkie, Mitchell Turner, Mark Scanlan, Anthony J. Blazevich
Does Fatigue Influence Joint-Specific Work And Ground Force Production During The First Steps Of Maximal Acceleration?, Shayne Vial, Jodie C. Wilkie, Mitchell Turner, Mark Scanlan, Anthony J. Blazevich
Research outputs 2022 to 2026
During initial acceleration, the first steps of a maximal-effort (sprint) run often determine success or failure in the capture and evasion of an opponent, and is therefore a vital factor of success in many modern sports. However, accelerative events are commonly performed after having already run considerable distances, and the associated fatigue should impair muscle force production and thus reduce acceleration. Despite this, the effects of running-induced fatigue on our ability to accelerate as well as the running technique used to achieve it have received little attention. We recorded 3-D kinematics and ground reaction forces during the first three steps …
Differing Hypertrophy Patterns From Open And Closed Kinetic Chain Training Affect Quadriceps Femoris Center Of Mass And Moment Of Inertia, Jacob E. Earp, Domenic Angelino, Disa L. Hatfield, Vincent Colantuono, Euan R. Jackson, Kristin D. Morgan, Alessandra Adami, Kathleen J. Melanson, Anthony J. Blazevich
Differing Hypertrophy Patterns From Open And Closed Kinetic Chain Training Affect Quadriceps Femoris Center Of Mass And Moment Of Inertia, Jacob E. Earp, Domenic Angelino, Disa L. Hatfield, Vincent Colantuono, Euan R. Jackson, Kristin D. Morgan, Alessandra Adami, Kathleen J. Melanson, Anthony J. Blazevich
Research outputs 2022 to 2026
Purpose: To determine whether kinetic chain pattern during knee extensor strength training influences quadriceps femoris center of mass and moment of inertia about the hip in a predictable manner as such changes can affect running economy. Methods: Twelve participants completed 8 weeks of both unilateral open (OKC) and closed (CKC) kinetic chain resistance training on opposing legs. Changes in quadriceps femoris muscle volume (VOLQF), center of mass location (CoMQF), and moment of inertia (IQF) about the hip were determined from magnetic resonance images scans. Regional hemodynamics of the vastus lateralis taken at 30% and 70% of muscle length during OKC …