Attentional demands and postural sway: the effect of the calf muscles fatigue

Vuillerme, Nicolas; Forestier, Nicolas; Nougier, Vincent

doi:10.1097/00005768-200212000-00008

Cited by 117 publications

(118 citation statements)

References 23 publications

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“…[1][2][3][4]). A study investigating the relationship between ankle proprioceptive acuity and balance ability during quiet standing following exercise-induced plantar-flexor muscles fatigue is planned to address this issue.…”

Section: Discussionmentioning

confidence: 99%

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Muscle fatigue degrades force sense at the ankle joint

Vuillerme

Boisgontier

2008

Gait & Posture

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To investigate the effects of muscle fatigue on force sense at the ankle joint, ten young healthy adults were asked to perform an isometric contra-lateral force ankle-matching task in two experimental conditions of (1) No-fatigue and (2) Fatigue of the plantar-flexor muscles.Measures of the overall accuracy and the variability of the force matching performances were determined using the absolute error and the variable error, respectively. Results showed less accurate and less consistent force matching performances in the Fatigue than No fatigue condition, as indicated by decreased absolute and variable errors, respectively. The present findings evidence that muscle fatigue degrades force sense at the ankle joint.

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Section: Discussionmentioning

confidence: 99%

“…[1][2][3][4]). These observations have been suggested to stem from a decreased ankle proprioception and an inability to produce or sustain required force output with the fatigued plantar-flexor muscles.…”

Section: Introductionmentioning

confidence: 99%

Muscle fatigue degrades force sense at the ankle joint

Vuillerme

Boisgontier

2008

Gait & Posture

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“…However, this type of error can largely be compensated for visually (27,43), and there is indeed a proportionate enhancement of central motor effort during short-term (18) and long-term (6) fatigue. In addition, there is a slower reaction time to auditory stimulus during postexercise balance control (42), suggesting an additional attentional demand during fatigue.…”

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confidence: 99%

Fatigue and functional performance of human biceps muscle following concentric or eccentric contractions

Smith¹,

Newham²

2007

Journal of Applied Physiology

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Smith ICH, Newham DJ. Fatigue and functional performance of human biceps muscle following concentric or eccentric contractions. J Appl Physiol 102: 207-213, 2007. First published September 21, 2006; doi:10.1152/japplphysiol.00571.2006.-A long-lasting fatigue was measured in human biceps muscle, following 40 maximal isokinetic concentric or eccentric contractions of the forearm, as the response to single-shock stimuli every minute for 4 h. This protocol allowed new observations on the early time course of long-lasting fatigue. Concentric contractions induced a novel progressive decline to 30.2% (SE 7.8, n ϭ 7) of control at 23 min with complete recovery by 120 min. Eccentric contractions lead initially to a smaller force reduction of similar time course followed by a slower decline to 40.0% (SE 5.1, n ϭ 7) control at 120 min with recovery less than half complete at 4 h. A 50-Hz test stimuli overcame both fatigues, identifying low-frequency fatigue. EMG recordings from the biceps muscle showed moderate (Ͻ20%) changes during the fatigue. A visual-tracking task showed no decrement in performance at the time of maximal fatigue of the single-shock response. Because the eccentric contractions have a similar activation, a larger force, but much smaller metabolic usage than concentric contractions, it is concluded that the initial decline is related to the effects of metabolites, whereas the slower phase after eccentric contractions is associated with higher mechanical stress. skeletal muscle; motor control; skill PERIPHERAL MUSCLE FATIGUE can be both short term, with a simultaneous recovery of force and phosphocreatine largely complete within 1 min (36, 37), and long-lasting, remaining for at least 0.5 h after exercise (13). This later failure to develop tension is seen most clearly using low-frequency test stimuli, thus the nomenclature of low-frequency fatigue (19). It remains long after metabolic recovery and is associated with reduced calcium release per action potential (8, 9). In addition, it has long been recognized that high-intensity eccentric contractions give rise to further force reduction that lasts several days and is associated with muscle damage (30,29,35), although the mechanisms for the initial decline in force are still uncertain (2, 31). In this paper, which studies force reduction for up to 4 h after brief but intense fatiguing concentric or eccentric exercise, we refer to the force reduction by either protocol as fatigue. The time scale of the development of long-lasting fatigue remains unclear because it has been experimentally lost either by using a long period of fatiguing exercise or through infrequent test measurements of the degree of fatigue. Normally, the fatigue is shown as having developed by the first measurement point, leading to the assumption that it develops during the fatiguing exercise. However, it was recently found that, in response to short maximal isometric contractions, low-frequency fatigue developed between 3 and 9 min after the exercise (11). Thus, to achieve a faster time...

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“…Especially in the condition of fatigue, it can be said that having regression on AP axis is because of delay on neurologic transfer of ankle joint. Briefly, decreased motor outputs affect the sensibility of proprioceptors negatively (26). Post fatigue protocol in the CoPsway measurements that they applied in unipedal posture; they observed the greatest differences on AP axis.…”

Section: Discussionmentioning

confidence: 96%

The effects of vibration frequency variation on volleyball players’ drop jump ability and postural control performance

Kırkaya¹,

Simsek²,

Ertan³

2015

Turk J Sport Exe

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The aim of the performed study is to present the acute effect of the whole body vibration (WBV) stimuli on drop jump (DJ) and postural control performance. 13 athletes who play in Turkish Women Volleyball Second League voluntarily attended to the study (22.3±2.6 age; 60.72kg ±1.74kg; 1.79cm±6.4cm). Athletes were randomly divided into three groups (group 1: n=4: 30Hz; group 2: n=5: 35; group 3: n=4: 40Hz). Before fatigue protocol, every participant's rest center of pressure-sway (CoP-sway) and DJ measurements on force plate were taken. Statistical whole body vibration measurements were practiced on Compex WINPLATE on different frequency (30-35-40Hz), on high amplitude, in the manner that knee flexion angle is 120 0 in 60 seconds. DJ breaking point which is determined for each athlete was applied as DJ jump height after vibration. Just after the fatigue protocol was completed, athletes' CoP-sway measurements after fatigue were practiced on force plate. Different frequency measurements taken to analyse the effects on DJ height of frequency at specific amplitudes were evaluated by ANOVA analysis. Based on variance homogeneity test, the Tukey or Tamhane methods were used for multiple comparisons. A statistical analysis with a paired Student's t test was used to compare pre-vibration and post-vibration treatment values of jumping height at the DJ test. DJ performance is affected by WBV stimuli in different frequency, CoP-sway values and especially fatigue situation in AP direction (p<0.05). In conclusion, 30Hz-35Hz and 40Hz WBV stimuli has an acute effect on DJ performance beside that 35 Hz WBV definitely has the greatest effect.

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Attentional demands and postural sway: the effect of the calf muscles fatigue

Abstract: These results suggest that muscular fatigue may put the individuals at higher risk of falling, especially when engaging in concurrent tasks.

Cited by 117 publications

References 23 publications

Muscle fatigue degrades force sense at the ankle joint

Muscle fatigue degrades force sense at the ankle joint

Fatigue and functional performance of human biceps muscle following concentric or eccentric contractions

The effects of vibration frequency variation on volleyball players’ drop jump ability and postural control performance

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