Analysis of muscular fatigue and foot stability during high-heeled gait

Gefen, Amit; Megido-Ravid, M.; Itzchak, Y; Arcan, M.

doi:10.1016/s0966-6362(01)00180-1

Cited by 181 publications

(141 citation statements)

References 18 publications

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“…One explanation to account for the decreased ability to maintain body stability may be afforded by the reduction of the muscle capacity to generate fast and precise responses fit to generate the continuous adjustments of the CoP needed to maintain a stable posture. As a consequence, fatigue may have interfered with the muscle capacity to generate the torque required to control the oscillatory motions of the center of body mass 30,31 . Although the maintenance of posture demands a low joint torque, the slower speed of torque generation during the state of fatigue seems to play an important role.…”

Section: Discussionmentioning

confidence: 99%

“…Fatigue may also affect the function of such mechanoreceptors, through which late responses are transmitted to the higher brain centers, thus delaying the elaboration of a quick response for controlling oscillations of the body center of mass. Indeed, according to some studies, the proprioceptive function is altered under the state of fatigue, which in turn alters responsiveness by means of efferent impulses towards structures involved in the generation or stabilization of the body segments 37 , thereby interfering with postural control 31 . Therefore, such mechanisms most likely influence postural control, increase the latency of the muscle response, and impair the precision of the continuous adjustment of the CoP, which is required for the postural control system.…”

Section: Discussionmentioning

confidence: 99%

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Stabilometric response during single-leg stance after lower limb muscle fatigue

Bruniera¹,

Rogério²,

Rodacki³

2013

Braz. J. Phys. Ther.

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| Objective:This study sought to analyze the effect of muscle fatigue induced by active isotonic resistance training at a moderate intensity by measuring the knee extension motion during the stabilometric response in a single-leg stance among healthy university students who perform resistance training on a regular basis. Method: Eleven healthy university students were subjected to a one-repetition maximum (1RM) test. In addition, stabilometric assessment was performed before and after the intervention and consisted of a muscle fatiguing protocol, in which knee extension was selected as the fatiguing task. The Shapiro-Wilk test was used to investigate the normality of the data, and the Wilcoxon test was used to compare the stabilometric parameters before and after induction of muscle fatigue, at a significance level of p≤0.05. Descriptive statistics were used in the analysis of the volunteers' age, height, body mass, and body mass index (BMI). Results: The sample population was 23.1±2.7 years of age, averaged 1.79.2±0.07 m in height and 75.6±8.0 Kg in weight, and had a BMI of 23.27±3.71 Kg.m -2 . The volunteers performed exercises 3.36±1.12 days/week and achieved a load of 124.54±22.07 Kg on 1RM and 74.72±13.24 Kg on 60% 1RM. The center of pressure (CoP) oscillation on the mediolateral plane before and after fatigue induction was 2.89±0.89 mm and 4.09±0.59 mm, respectively, while the corresponding values on the anteroposterior plane were 2.5±2.2 mm and 4.09±2.26 mm, respectively. The CoP oscillation amplitude on the anteroposterior and mediolateral planes exhibited a significant difference before and after fatigue induction (p=0.04 and p=0.05, respectively). Conclusions: The present study showed that muscle fatigue affects postural control, particularly with the mediolateral and anteroposterior CoP excursion.Keywords: rehabilitation; muscle fatigue; exercise; postural balance. HOW TO CITE THIS ARTICLEBruniera CAV, Rogério FRPG, Rodacki ALF. Stabilometric response during single-leg stance after lower limb muscle fatigue. Braz J Phys Ther. 2013 Sept-Oct; 17(5):464-469. http://dx

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Stabilometric response during single-leg stance after lower limb muscle fatigue

Bruniera¹,

Rogério²,

Rodacki³

2013

Braz. J. Phys. Ther.

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“…Generally, the conventional cranks are separated at 180° and were reported to produce minimal power when one of the legs reaches Bottom Dead Centre (BDC) while the other leg is at Top Dead Centre (TDC) [2]. Those two points so called dead points because throughout the circular motion of cycling, TDC and BDC produce minimum tangential force [3]. Previous research found that by avoiding both leg to reach TDC and BDC simultaneously, the net cycling power will be increased and thus enhance the cyclist performance [4].…”

Section: Introductionmentioning

confidence: 99%

Influence of Synchronized Dead Point Elimination Crank on Cyclist Muscle Fatigue

et al. 2016

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Abstract. The aim of this study was to investigate the influence of newly proposed bicycle's crank to crank angle setting on the Vastus Lateralis (VL) and Bicep Femoris (BF) muscle activity during cycling. Procedures of Conconi Test were used throughout the experiment for the data collection purpose. The muscles activities were recorded using surface electromyography and software LabChart7. The raw data were further processed in time (Root-Mean-Square, RMS) and frequency (Mean Power Frequency, MPF) domain. It was found that 0° crank to crank setting (similar to conventional crank to crank angle setting) caused the prime mover VL (Normalized RMS = 0.119) to fatigue more than BF (Normalized RMS = 0.102). This setting is expected to decrease the cycling performance. In addition, -5° is the best crank to crank angle setting that causes least fatigue to both VL and BF. In short, to increase the cycling performance by avoiding the fatigue to the main muscles, -5° is the suggested as setting angle for the proposed crank design.

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“…Another characteristic of the fatigue is the fact that it depends on the task, that is, its causes vary in a very wide way and it behaves according to the way it is induced [3,7] . The muscular fatigue is considered as a predisposing factor to the appearance of injuries [8,9] , such as the ankle sprain. Lactic acid accumulation is one of the cases that can be interfering in fatigue protocol and subsequently decreasing the functional stability.…”

Section: Introductionmentioning

confidence: 99%

“…It can be concluded that knee muscle fatigue has an adverse effect on balance; however, this impairment was not correlated with the degree of lactic acid accumulation [11] . Several authors have been studying the effects of the muscular fatigue on the neuromuscular control [8,[14][15][16] , which is related to the proprioceptive afferents that are taken by the peripheral receptors to the upper centers and to the efferent (motor) responses generated with the purpose to keep the dynamic muscular stability [17] . Studies have shown that the muscular fatigue causes an adverse change in the proprioception [15,18] a sensorial modality comprising the sensations of the joint movement and positioning [12,38] , as well as the postural control [8,14,16,19] .…”

Section: Introductionmentioning

confidence: 99%

The Effect of Exhausting Exercise Induced Muscular Fatigue On Functional Stability

Letafatkar¹,

Alizadeh²,

Kordi³

2009

J. of Social Sciences

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Problem statement:To quantify the effect of exhausting exercise induced muscular fatigue on functional stability. Approach: About 30 male professional athletes with mean age 23±2.1 years old, mean weight 82±1.3 kg and mean height1 81±9.7 cm were selected for participation in this study. In this study Unstable Biodex platform (level 3) used for stability evaluation. Balance performance was quantified as a stability index and the mean deflection of the platform. Running Based Anaerobic Test (RAST test) used for fatigue execution. Results: Results showed no significant (p>0.05) main effect for exercise duration in the stability index, suggesting that balance performance was maintained throughout the competition. Hence there wasn't a significant relationship between lactate acid accumulation and variations of stability indices (r = -0/661, p<0.05). Conclusion: Therefore, the improvement of proprioception in the ankle and knee joint is recommended as a prevention role to the injuries in the abovementioned joints.

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Analysis of muscular fatigue and foot stability during high-heeled gait

Cited by 181 publications

References 18 publications

Stabilometric response during single-leg stance after lower limb muscle fatigue

Stabilometric response during single-leg stance after lower limb muscle fatigue

Influence of Synchronized Dead Point Elimination Crank on Cyclist Muscle Fatigue

The Effect of Exhausting Exercise Induced Muscular Fatigue On Functional Stability

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