Effects of knee and ankle muscle fatigue on postural control in the unipedal stance

被引：73

作者：

Bizid, Riadh ^{[1
]}

Margnes, Eric ^{[1
]}

Francois, Yrieix ^{[2
]}

Jully, Jean Louis ^{[2
]}

Gonzalez, Gerard ^{[2
]}

Dupui, Philippe ^{[3
]}

Paillard, Thierry ^{[1
]}

机构：

[1] Univ Pau, Dept Sport Sci, Tarbes, France

[2] Ctr Arbizon, Bagneres De Bigorre, France

[3] Univ Toulouse 3, Sch Med, F-31062 Toulouse, France

来源：

EUROPEAN JOURNAL OF APPLIED PHYSIOLOGY | 2009年 / 106卷 / 03期

关键词：

Fatigue; Postural control; Plantar flexor muscles; Knee extensor muscles; TREADMILL EXERCISE; STANDING BALANCE; MUSCULAR FATIGUE; BODY BALANCE; YOUNG-ADULTS; STABILITY; HUMANS; MOTONEURONS; INHIBITION;

D O I：

10.1007/s00421-009-1029-2

中图分类号：

Q4 [生理学];

学科分类号：

071003 ;

摘要：

The aim of this study was to compare the effects of acute muscle fatigue of the ankle and knee musculature on postural control by immediate measures after performing fatiguing tasks (POST condition). One group of subjects (n = 8) performed a fatiguing task by voluntary contractions of the triceps surae (group TRI) and the other (n = 9) performed a fatiguing task by voluntary contractions of the quadriceps femoris (group QUA). Each muscle group was exercised until the loss of maximal voluntary contraction torque reached 50% (isokinetic dynamometer). Posture was assessed by measuring the centre of foot pressure (COP) with a force platform during a test of unipedal quiet standing posture with eyes closed. Initially (in PRE condition), the mean COP velocity was not significantly different between group TRI and group QUA. In POST condition, the mean COP velocity increased more in group QUA than in group TRI. The postural control was more impaired by knee muscle fatigue than by ankle muscle fatigue.

引用

页码：375 / 380

页数：6

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