Prolonged running increases knee moments in sidestepping and cutting manoeuvres in sport

Robert J. Savage, Brendan S. Lay, Jodie A. Wills, David G. Lloyd, Tim L. A. Doyle

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

Objectives: To investigate how knee kinematics, kinetics and loading changes during sidestepping tasks following a prolonged running protocol performed in a laboratory setting.

Design: All participants performed sidestepping, and crossover cutting tasks in a randomised order before and after a 60 min running protocol on a non-motorised treadmill that simulated an AF game.

Methods: Eight healthy male participants who partook in semi-professional and amateur Australian Football undertook a series of straight line runs, sidestepping (SS), and crossover cutting (XO) tasks before and after a simulated game of Australian football. Kinematic data were analysed at initial foot contact of the SS and XO manoeuvres and kinetic data were analysed during the weight acceptance phase of the stance.

Results: The knee was significantly more flexed at foot contact following fatigue compared to pre-fatigue states. Fatigue was also a factor contributing to significant increases in internal knee extension moments. Significant differences were also observed between SS and XO trials with flexion/extension moments, with notable differences in varus/valgus and internal/external rotation moments.

Conclusions: Acute angles of knee flexion at foot strike in a fatigued state may place the joint at an increased risk of injury. Increases in knee extension moments in the fatigued state suggests the knee joint must withstand significantly high stresses once fatigued. (C) 2017 Sports Medicine Australia. Published by Elsevier Ltd. All rights reserved.

Original languageEnglish
Pages (from-to)508-512
Number of pages5
JournalJournal of Science and Medicine in Sport
Volume21
Issue number5
DOIs
Publication statusPublished - May 2018

Cite this

Savage, Robert J. ; Lay, Brendan S. ; Wills, Jodie A. ; Lloyd, David G. ; Doyle, Tim L. A. / Prolonged running increases knee moments in sidestepping and cutting manoeuvres in sport. In: Journal of Science and Medicine in Sport. 2018 ; Vol. 21, No. 5. pp. 508-512.
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abstract = "Objectives: To investigate how knee kinematics, kinetics and loading changes during sidestepping tasks following a prolonged running protocol performed in a laboratory setting.Design: All participants performed sidestepping, and crossover cutting tasks in a randomised order before and after a 60 min running protocol on a non-motorised treadmill that simulated an AF game.Methods: Eight healthy male participants who partook in semi-professional and amateur Australian Football undertook a series of straight line runs, sidestepping (SS), and crossover cutting (XO) tasks before and after a simulated game of Australian football. Kinematic data were analysed at initial foot contact of the SS and XO manoeuvres and kinetic data were analysed during the weight acceptance phase of the stance.Results: The knee was significantly more flexed at foot contact following fatigue compared to pre-fatigue states. Fatigue was also a factor contributing to significant increases in internal knee extension moments. Significant differences were also observed between SS and XO trials with flexion/extension moments, with notable differences in varus/valgus and internal/external rotation moments.Conclusions: Acute angles of knee flexion at foot strike in a fatigued state may place the joint at an increased risk of injury. Increases in knee extension moments in the fatigued state suggests the knee joint must withstand significantly high stresses once fatigued. (C) 2017 Sports Medicine Australia. Published by Elsevier Ltd. All rights reserved.",
keywords = "Biomechanics, Muscle contraction, Knee loading, Injury, Fatigue, CRUCIATE LIGAMENT INJURY, STOP-JUMP TASK, AUSTRALIAN FOOTBALL, MUSCLE ACTIVATION, FATIGUE, JOINT, KINEMATICS, PERFORMANCE, QUADRICEPS, TREADMILL",
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Prolonged running increases knee moments in sidestepping and cutting manoeuvres in sport. / Savage, Robert J.; Lay, Brendan S.; Wills, Jodie A.; Lloyd, David G.; Doyle, Tim L. A.

In: Journal of Science and Medicine in Sport, Vol. 21, No. 5, 05.2018, p. 508-512.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Prolonged running increases knee moments in sidestepping and cutting manoeuvres in sport

AU - Savage, Robert J.

AU - Lay, Brendan S.

AU - Wills, Jodie A.

AU - Lloyd, David G.

AU - Doyle, Tim L. A.

PY - 2018/5

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N2 - Objectives: To investigate how knee kinematics, kinetics and loading changes during sidestepping tasks following a prolonged running protocol performed in a laboratory setting.Design: All participants performed sidestepping, and crossover cutting tasks in a randomised order before and after a 60 min running protocol on a non-motorised treadmill that simulated an AF game.Methods: Eight healthy male participants who partook in semi-professional and amateur Australian Football undertook a series of straight line runs, sidestepping (SS), and crossover cutting (XO) tasks before and after a simulated game of Australian football. Kinematic data were analysed at initial foot contact of the SS and XO manoeuvres and kinetic data were analysed during the weight acceptance phase of the stance.Results: The knee was significantly more flexed at foot contact following fatigue compared to pre-fatigue states. Fatigue was also a factor contributing to significant increases in internal knee extension moments. Significant differences were also observed between SS and XO trials with flexion/extension moments, with notable differences in varus/valgus and internal/external rotation moments.Conclusions: Acute angles of knee flexion at foot strike in a fatigued state may place the joint at an increased risk of injury. Increases in knee extension moments in the fatigued state suggests the knee joint must withstand significantly high stresses once fatigued. (C) 2017 Sports Medicine Australia. Published by Elsevier Ltd. All rights reserved.

AB - Objectives: To investigate how knee kinematics, kinetics and loading changes during sidestepping tasks following a prolonged running protocol performed in a laboratory setting.Design: All participants performed sidestepping, and crossover cutting tasks in a randomised order before and after a 60 min running protocol on a non-motorised treadmill that simulated an AF game.Methods: Eight healthy male participants who partook in semi-professional and amateur Australian Football undertook a series of straight line runs, sidestepping (SS), and crossover cutting (XO) tasks before and after a simulated game of Australian football. Kinematic data were analysed at initial foot contact of the SS and XO manoeuvres and kinetic data were analysed during the weight acceptance phase of the stance.Results: The knee was significantly more flexed at foot contact following fatigue compared to pre-fatigue states. Fatigue was also a factor contributing to significant increases in internal knee extension moments. Significant differences were also observed between SS and XO trials with flexion/extension moments, with notable differences in varus/valgus and internal/external rotation moments.Conclusions: Acute angles of knee flexion at foot strike in a fatigued state may place the joint at an increased risk of injury. Increases in knee extension moments in the fatigued state suggests the knee joint must withstand significantly high stresses once fatigued. (C) 2017 Sports Medicine Australia. Published by Elsevier Ltd. All rights reserved.

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KW - STOP-JUMP TASK

KW - AUSTRALIAN FOOTBALL

KW - MUSCLE ACTIVATION

KW - FATIGUE

KW - JOINT

KW - KINEMATICS

KW - PERFORMANCE

KW - QUADRICEPS

KW - TREADMILL

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DO - 10.1016/j.jsams.2017.07.007

M3 - Article

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EP - 512

JO - Journal of Science and Medicine in Sport

JF - Journal of Science and Medicine in Sport

SN - 1440-2440

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ER -