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The effect of six weeks endurance training on dynamic muscular control of the knee following fatiguing exercise.

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Title: The effect of six weeks endurance training on dynamic muscular control of the knee following fatiguing exercise.
Authors: Hassanlouei, H.1, Falla, D.2,3, Arendt-Nielsen, L.1, Kersting, U.G.1 uwek@hst.aau.dk
Source: Journal of Electromyography & Kinesiology. Oct2014, Vol. 24 Issue 5, p682-688. 7p.
Subjects: Physical fitness, Motor ability, Knee anatomy, Muscles, Fatigue (Physiology), Muscle contraction, Dynamometer
Abstract: The aim of the study was to examine whether six weeks of endurance training minimizes the effects of fatigue on postural control during dynamic postural perturbations. Eighteen healthy volunteers were assigned to either a 6-week progressive endurance training program on a cycle ergometer or a control group. At week 0 and 7, dynamic exercise was performed on an ergometer until exhaustion and immediately after, the anterior–posterior centre of pressure (COP) sway was analyzed during full body perturbations. Maximal voluntary contractions (MVC) of the knee flexors and extensors, muscle fiber conduction velocity (MFCV) of the vastus lateralis and medialis during sustained isometric knee extension contractions, and power output were measured. Following the training protocol, maximum knee extensor and flexor force and power output increased significantly for the training group with no changes observed for the control group. Moreover, the reduction of MFCV due to fatigue changed for the training group only (from 8.6% to 3.4%). At baseline, the fatiguing exercise induced an increase in the centre of pressure sway during the perturbations in both groups (>10%). The fatiguing protocol also impaired postural control in the control group when measured at week 7. However, for the training group, sway was not altered after the fatiguing exercise when assessed at week 7. In summary, six weeks of endurance training delayed the onset of muscle fatigue and improved the ability to control balance in response to postural perturbations in the presence of muscle fatigue. Results implicate that endurance training should be included in any injury prevention program. [ABSTRACT FROM AUTHOR]
Copyright of Journal of Electromyography & Kinesiology is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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DbLabel: Engineering Source
An: 97845480
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
PreciseRelevancyScore: 0
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  Data: The effect of six weeks endurance training on dynamic muscular control of the knee following fatiguing exercise.
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  Data: <searchLink fieldCode="AR" term="%22Hassanlouei%2C+H%2E%22">Hassanlouei, H.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Falla%2C+D%2E%22">Falla, D.</searchLink><relatesTo>2,3</relatesTo><br /><searchLink fieldCode="AR" term="%22Arendt-Nielsen%2C+L%2E%22">Arendt-Nielsen, L.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Kersting%2C+U%2EG%2E%22">Kersting, U.G.</searchLink><relatesTo>1</relatesTo><i> uwek@hst.aau.dk</i>
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  Data: <searchLink fieldCode="DE" term="%22Physical+fitness%22">Physical fitness</searchLink><br /><searchLink fieldCode="DE" term="%22Motor+ability%22">Motor ability</searchLink><br /><searchLink fieldCode="DE" term="%22Knee+anatomy%22">Knee anatomy</searchLink><br /><searchLink fieldCode="DE" term="%22Muscles%22">Muscles</searchLink><br /><searchLink fieldCode="DE" term="%22Fatigue+%28Physiology%29%22">Fatigue (Physiology)</searchLink><br /><searchLink fieldCode="DE" term="%22Muscle+contraction%22">Muscle contraction</searchLink><br /><searchLink fieldCode="DE" term="%22Dynamometer%22">Dynamometer</searchLink>
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  Data: The aim of the study was to examine whether six weeks of endurance training minimizes the effects of fatigue on postural control during dynamic postural perturbations. Eighteen healthy volunteers were assigned to either a 6-week progressive endurance training program on a cycle ergometer or a control group. At week 0 and 7, dynamic exercise was performed on an ergometer until exhaustion and immediately after, the anterior–posterior centre of pressure (COP) sway was analyzed during full body perturbations. Maximal voluntary contractions (MVC) of the knee flexors and extensors, muscle fiber conduction velocity (MFCV) of the vastus lateralis and medialis during sustained isometric knee extension contractions, and power output were measured. Following the training protocol, maximum knee extensor and flexor force and power output increased significantly for the training group with no changes observed for the control group. Moreover, the reduction of MFCV due to fatigue changed for the training group only (from 8.6% to 3.4%). At baseline, the fatiguing exercise induced an increase in the centre of pressure sway during the perturbations in both groups (>10%). The fatiguing protocol also impaired postural control in the control group when measured at week 7. However, for the training group, sway was not altered after the fatiguing exercise when assessed at week 7. In summary, six weeks of endurance training delayed the onset of muscle fatigue and improved the ability to control balance in response to postural perturbations in the presence of muscle fatigue. Results implicate that endurance training should be included in any injury prevention program. [ABSTRACT FROM AUTHOR]
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  Data: <i>Copyright of Journal of Electromyography & Kinesiology is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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RecordInfo BibRecord:
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      – Type: doi
        Value: 10.1016/j.jelekin.2014.06.004
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      – Code: eng
        Text: English
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        PageCount: 7
        StartPage: 682
    Subjects:
      – SubjectFull: Physical fitness
        Type: general
      – SubjectFull: Motor ability
        Type: general
      – SubjectFull: Knee anatomy
        Type: general
      – SubjectFull: Muscles
        Type: general
      – SubjectFull: Fatigue (Physiology)
        Type: general
      – SubjectFull: Muscle contraction
        Type: general
      – SubjectFull: Dynamometer
        Type: general
    Titles:
      – TitleFull: The effect of six weeks endurance training on dynamic muscular control of the knee following fatiguing exercise.
        Type: main
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            NameFull: Hassanlouei, H.
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            NameFull: Falla, D.
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            NameFull: Arendt-Nielsen, L.
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            NameFull: Kersting, U.G.
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            – D: 01
              M: 10
              Text: Oct2014
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              Y: 2014
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