Experimental calf muscle pain attenuates the postural stability during quiet stance and perturbation

2010 ◽  
Vol 25 (9) ◽  
pp. 931-937 ◽  
Author(s):  
Rogério Pessoto Hirata ◽  
Lars Arendt-Nielsen ◽  
Thomas Graven-Nielsen
2011 ◽  
Vol 12 (8) ◽  
pp. 911-919 ◽  
Author(s):  
Rogério Pessoto Hirata ◽  
Ulysses Fernandes Ervilha ◽  
Lars Arendt-Nielsen ◽  
Thomas Graven-Nielsen

Author(s):  
Pilwon Hur ◽  
K. Alex Shorter ◽  
Elizabeth T. Hsiao-Wecksler

Posturographic data collected during quiet stance using force plates is widely used to assess postural stability [1]. Center of pressure (COP) is a commonly used experimental variable for several types of analyses. Traditionally, COP data have been analyzed using measures that describe the shape or speed of the trajectory [1]. Unfortunately, these parameters do not provide insight into the physiological system as a whole and have been shown to have questionable reliability [2].


2018 ◽  
Vol 40 ◽  
pp. 378-384 ◽  
Author(s):  
Barbora Adamová ◽  
Patrik Kutilek ◽  
Ondrej Cakrt ◽  
Zdenek Svoboda ◽  
Slavka Viteckova ◽  
...  

2006 ◽  
Vol 22 (2) ◽  
pp. 155-161 ◽  
Author(s):  
Jeffrey M. Haddad ◽  
Jeff L. Gagnon ◽  
Christopher J. Hasson ◽  
Richard E.A. Van Emmerik ◽  
Joseph Hamill

Postural stability has traditionally been examined through spatial measures of the center of mass (CoM) or center of pressure (CoP), where larger amounts of CoM or CoP movements are considered signs of postural instability. However, for stabilization, the postural control system may utilize additional information about the CoM or CoP such as velocity, acceleration, and the temporal margin to a stability boundary. Postural time-to-contact (TtC) is a variable that can take into account this additional information about the CoM or CoP. Postural TtC is the time it would take the CoM or CoP, given its instantaneous trajectory, to contact a stability boundary. This is essentially the time the system has to reverse any perturbation before stance is threatened. Although this measure shows promise in assessing postural stability, the TtC values derived between studies are highly ambiguous due to major differences in how they are calculated. In this study, various methodologies used to assess postural TtC were compared during quiet stance and induced-sway conditions. The effects of the different methodologies on TtC values will be assessed, and issues regarding the interpretation of TtC data will also be discussed.


1965 ◽  
Vol 208 (6) ◽  
pp. 1047-1057 ◽  
Author(s):  
J. M. Brookhart ◽  
P. L. Parmeggiani ◽  
W. A. Petersen ◽  
S. A. Stone

Positional stability in quietly standing dogs has been evaluated in terms of force records from individual feet and the position of the center of gravity. All four dogs carried approximately 60% of their total weight on their anterior feet and roughly 50% of their weight on each side. Within-trial variations from the mean of the fraction of total weight borne on any one foot ranged from 0.3 to 4.5% with a mean of 1.4%; between-trial variability ranged from 1.1 to 2.7%. Continuous movement of the center of gravity occurred within an area measuring approximately 1.5 cm on a side. Shifts in weight distribution within and between trials occurred in a variety of patterns which could be described in terms of the behavior of pairs of transverse, longitudinal, and diagonal couples. Preliminary observations of the reactions to a sudden disturbance confirm the hypothesis that quiet stance is accomplished through central nervous regulation. It is concluded that the trained dog behaves with a sufficient level of predictability to permit its use as a subject in a further examination of the postural control system.


2011 ◽  
Vol 112 (5) ◽  
pp. 1807-1815 ◽  
Author(s):  
Katerina Stambolieva ◽  
Vassilis Diafas ◽  
Vichren Bachev ◽  
Lilia Christova ◽  
Plamen Gatev

2000 ◽  
Vol 529 (3) ◽  
pp. 849-861 ◽  
Author(s):  
Simon Green ◽  
Henning Langberg ◽  
Dorthe Skovgaard ◽  
Jens Bülow ◽  
Michael Kjær

Author(s):  
I.A. Pascha Paramurthi ◽  
Luh Made Indah Sri Handari Adiputra ◽  
M.Ali Imron ◽  
Desak Made Wihandani ◽  
Made Muliarta ◽  
...  

Background: Calf Muscle Pain is discomfort and pain feeling in the gastrocnemius and soleus muscles, a result of constantly receiving the loading due to excessive wear. Purpose: This study was to determine hold relax exercise and auto myofascial release technique was more effective to reduce calf muscle pain than hold relax and auto stretching on SPG at Lippo Mall Kuta Bali. Methods: This research was an experimental study with pre and post test control group design. Total sample of this study were 22 SPGs, which divided into 2 groups. Group 1 (n = 11) was given hold relax exercise and auto stretching while the group 2 (n = 11) was given intervention hold relax exercise and auto myofascial release technique. Do exercise 3 times a week for 4 weeks. Sampling techniques with random sampling. Calf muscle pain was measured with modification sphygmomanometer to provoked pain. Result: Group 1 result obtained p value = 0,001 (p <0.05) and in Group 2 got result obtained p value = 0.001 (p<0.05) for Paired Sample T-test. Different test of mean value with independent sample t-test after treatment found that the decrease of calf muscle pain in group 2 was 232.73 mmHg better than group 1 was 199.09 mmHg with p value = 0.035 (p <0.05). Conclusion: Hold relax exercise and auto myofascial release technique more effective to reduce calf muscle pain than hold relax exercise and auto stretching on SPGs in Lippo Mall Kuta Bali. Suggestion: For the next researcher can do follow up research to see long-term result of hold relax and auto stretching exercise as well hold relax and auto myofascial release technique for SPGs.


2018 ◽  
Vol 6 (1) ◽  
pp. 39
Author(s):  
Ni Putu Ayu Sasmita Sari ◽  
I Made Niko Winaya ◽  
I Putu Adiartha Griadhi ◽  
I Putu Gede Adiatmika

ABSTRACT Stands work attitude in a long time cause muscle complaints on fabric cutters worker. The purpose of this studyis knowing whether effect of pedal exercise and stretching calf muscles more effective to increase threshold of calfmuscle pain on the fabric cutters worker. Measurement of the value of pain was measured using a sphygmomanometerThis study is experimental research using Pre Test and Post Test Control Group Design. These samples included 20people who were divided into group treatment and group control. Group treatment was given pedal exercise andstretching calf muscles, while Group control without treatment. Hypothesis test by paired sample t-test in group treatmentis p=0.000 with a mean difference 30.00±16.99, that mean is it can increase threshold of calf muscle pain, while incontrol group is p=0.758 with a mean difference 1.00±9.94, that mean is it can’t increase threshold of calf muscle pain.At different test between treatment group and control group using independent sample t-test was obtained p=0.000(p<0.05). Based on these results, it can be concluded that pedal exercise and stretching calf muscles more effective toincrease threshold of calf muscle pain. Keywords: pedal exercise, stretching, calf muscle pain, fabric cutter


Author(s):  
Anne Beuter ◽  
Roberto Hernández ◽  
Robert Rigal ◽  
Julien Modolo ◽  
Pierre J. Blanchet

Objective:To characterize postural stability control and levodopa responsiveness in early Parkinson's disease (PD).Methods:Postural sway was studied during quiet stance in ten patients within six years of PD onset, both before (OFF) and after (ON) regular oral levodopa dosing. Postural sway was recorded using a force platform during 30 sec with eyes open, and six dependent variables were examined.Results:Mild baseline subclinical changes in postural sway were recorded in our patients. Clear benefit was observed in five out of six characteristics (mean sway, transversal sway, sagittal sway, sway intensity, and sway area) in the ON condition.Conclusion:Postural control mechanisms are affected early in PD and modulated by dopamine.


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