Effects of limiting anterior displacement of the center of foot pressure on anticipatory postural control during bilateral shoulder flexion

To confirm the 1994 findings of Okuzumi, Haishi, and Kokubun, the displacement of the center of foot pressure, one-foot balance and bead sway were measured in children with Down syndrome ( n = 11) compared to those with other types of mental retardation ( n = 17). The magnitudes of the displacement of the center of foot pressure and head sway were not significantly different between the Down group and other forms of mental retardation, whereas the performance of one-foot balance was significantly lower in the Down group. The mean frequencies of sway waves were generally higher in the Down group, and the differences between the two groups were significant except for sagittal head sway. The results generally supported the prior findings. We proposed that it was not the magnitude of the displacement of the center of foot pressure but rather the manner of the whole body's sway which might be related to postural control.

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Trends in the Analysis of Static Balance

Reabilitacijos mokslai slauga kineziterapija ergoterapija ◽

10.33607/rmske.v1i2.883 ◽

2020 ◽

Vol 1 (2) ◽

Author(s):

Vilma Juodžbalienė ◽

Kazimieras Muckus

Keyword(s):

Postural Control ◽

Physiological Parameters ◽

Quiet Standing ◽

Static Balance ◽

Foot Pressure ◽

Postural Control System ◽

Balance Disorders ◽

Dependent Variables ◽

Center Of Foot Pressure ◽

Anterior Posterior

The aim of the paper was to discuss the trends in the analysis of static balance and relation between physiological parameters and characteristics of posturograms. Static balance is ability to keep steady posture in certain stance [2, 3]. Posturography is one of most popular research methods of static balance [10, 11]. During the last decade it was maintained that the most informative dependent variables defining postural stability were the amplitude of the center of foot pressure (COP) sway in anterior-posterior and mediolateral directions, the length of the COP pathway and the area of the COP sway [9, 15]. The output of the posturograms registered during quiet standing is irregular and erratic [14]. Therefore, methods analyzing the structure of the posturograms are very topical for physiology and Rehabilitation science. The scientists attempt to determine certain noise and oscillation patterns in the posturogram [20]. According to researchers [14], the structure and roughness or smoothness of the posturogram could reflect the changes in postural control system. It is still questionable which of the methods analyzing the posturogram outcomes could be the most informative and useful for the diagnostics of postural control disorders. It is important to be able to repeat the scientific study, but it is still complicated to solve tasks related to postural control disorders diagnostics and the evaluation of the treatment means effectiveness. It is important to define the relation between physiological parameters and characteristics of posturograms in order to apply the posturography for balance disorders diagnostics. We suppose that methods of posturogram structure analysis could improve the differential balance disorders diagnostics essentially.Keywords: static balance, static posturography, center of foot pressure.

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Effects of Limb Dominance on Postural Balance in Sportsmen Practicing Symmetric and Asymmetric Sports: A Pilot Study

Symmetry ◽

10.3390/sym13112199 ◽

2021 ◽

Vol 13 (11) ◽

pp. 2199

Author(s):

Mohamed Abdelhafid Kadri ◽

Frédéric Noé ◽

Julien Maitre ◽

Nicola Maffulli ◽

Thierry Paillard

Keyword(s):

Postural Control ◽

Physiological State ◽

Frontal Plane ◽

Relative Increase ◽

Foot Pressure ◽

Before And After ◽

Center Of Foot Pressure ◽

Fatiguing Exercise ◽

Spatio Temporal ◽

The Difference

The current literature shows no consensus regarding the difference between the dominant leg (D-Leg) and the non-dominant leg (ND-Leg) in terms of postural control. This lack of consensus could stem from motor experience (i.e., symmetric or asymmetric motricity) and/or the physiological state induced by physical exercise. This study aimed to investigate the acute effects of fatiguing exercise on postural control when standing on the D-Leg and the ND-Leg, in athletes practicing symmetric (SYM) and asymmetric (ASYM) sports. Thirty healthy male participants were recruited and divided into two groups, (SYM n = 15) and (ASYM n = 15, on the basis of the motricity induced by the sport they practice. Monopedal postural control was assessed for the D-Leg and the ND-Leg before and after the fatigue period (which consisted of repeating squats until exhaustion). A force platform was used to calculate the spatio-temporal characteristics of the displacements of the center of foot pressure (COP). A significant fatigue effect was observed in both groups on the D-Leg and the ND-Leg for all the COP parameters. There was a tendency (p = 0.06) between the ASYM and SYM groups on the D-Leg, concerning the relative increase in the COP velocity in the frontal plane after the fatigue period. The fatigue condition disturbed postural control in both the SYM and ASYM groups on the D-Leg and ND-Leg. This disturbing effect related to fatigue tends to be more marked in athletes practicing asymmetric sports than in athletes practicing symmetric sports on the D-Leg.

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Treatment Resort Extended with Modern Feedback Exercises Using Virtual Reality to Improve Postural Control in Patients Aged 65+ with an Increased Risk of Falls. Preliminary Study

Acta Balneologica ◽

10.36740/abal201903102 ◽

2019 ◽

Vol 61 (3) ◽

pp. 163-170

Author(s):

Laura Piejko ◽

Krzysztof Cygoń ◽

Kamila Niewolak ◽

Dariusz Fielek ◽

Paula Pecyna ◽

...

Keyword(s):

Virtual Reality ◽

Postural Control ◽

Statistical Significance ◽

Spa Therapy ◽

Foot Pressure ◽

Increased Risk ◽

Standing Up ◽

Bowel Movements ◽

Risk Of Falls ◽

Center Of Foot Pressure

Introduction: The aim of the study was to learn the influence of treatment resort extended with modern exercises with feedback using virtual reality for postural control and reducing the risk of falls in people aged 65+. Material and Methods: Seventy four people (46 women, 28 men; aged 65-84) participated for three weeks in spa therapy, which was extended with physical exercises using feedback based on virtual reality to improve postural control and reduce the risk of falls. Postural control tests, “get up and go” test (TUG) and test standing up from the chair for 30 seconds were performed to assess the progress of the therapy. Results: After treatment in the Romberg trial performed on the stabilometric platform with open and closed eyes, a statistically significant improvement in most parameters indicating improved postural control was noted, including reduction of path length and surface area of center of foot pressure (COP), reduction of the length and speed of bowel movements COP in the frontal and sagittal planes. A statistically significant reduction in the time of the TUG test and increase the number of repetitions of standing up from the chair in 30 seconds were also noted. Statistical significance was assumed at the level of p≤0.05. Conclusions: Treatment resort enriched with exercises using virtual reality and feedback contributes to improving postural control and reducing the risk of falls in people aged 65+. The results of the study should be confirmed in high-quality therapeutic experiments, including control groups.

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SELECTION OF USEFUL PARAMETERS TO EVALUATE CENTER-OF-FOOT PRESSURE MOVEMENT

Perceptual and Motor Skills ◽

10.2466/pms.103.7.959-973 ◽

2006 ◽

Vol 103 (7) ◽

pp. 959 ◽

Cited By ~ 1

Author(s):

SHINICHI DEMURA

Keyword(s):

Foot Pressure ◽

Center Of Foot Pressure ◽

Selection Of

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Quantitative analysis of static equilibrium in women after mastectomy

International Journal on Disability and Human Development ◽

10.1515/ijdhd-2013-0041 ◽

2014 ◽

Vol 14 (1) ◽

pp. 81-87

Author(s):

Maciej Rachwał ◽

Justyna Drzał-Grabiec ◽

Katarzyna Walicka-Cupryś ◽

Aleksandra Truszczyńska

Keyword(s):

Mean Amplitude ◽

Control Group ◽

Foot Pressure ◽

Locomotor System ◽

Center Of Foot Pressure ◽

The Mean ◽

Almost All ◽

Posture Stability ◽

Mastectomy Group ◽

Better Than

Abstract Background: The post-mastectomy changes to the locomotor system are related to the scar and adhesion or to the lymphatic edema after amputation which, in turn, lead to local and global distraction of the work of the muscles. These changes lead to body statics disturbance that changes the projection of the center of gravity and worsens motor response due to changing of the muscle sensitivity. Objective: The aim of the study was to evaluate the static balance of women after undergoing mastectomy. Methods: The study included 150 women, including 75 who underwent mastectomy (mean age: 60±7.6) years, mean body mass index (BMI): 26 (±3.6) kg/m2) and 75 who were placed in the control group with matched age and BMI. The study was conducted using a tensometric platform. Results: Statistically significant differences were found for almost all parameters between the post-mastectomy group and group of healthy women, regarding center of foot pressure (COP) path length in the Y and X axes and the mean amplitude of COP. Conclusions: First, the findings revealed that balance in post-mastectomy women is significantly better than in the control group. Second, physiotherapeutic treatment of post-mastectomy women may have improved their posture stability compared with their peers.

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