scholarly journals Bipedal and unipedal stance in Brazilian football 7-a-side athletes with cerebral palsy

2018 ◽  
Vol 25 (3) ◽  
pp. 303-308
Author(s):  
Guilherme Lopes ◽  
Ana Cristina de David
Keyword(s):  
Cerebral Palsy ◽  
Postural Control ◽  
Center Of Pressure ◽  
Musculoskeletal Injury ◽  
Force Platform ◽  
Confidence Ellipse ◽  
Bipedal Stance ◽  
Football Team ◽  
Ellipse Area

ABSTRACT To compare postural control between Football 7-a-side players with cerebral palsy (CP) and active non-athletes without neurologic impairments, 28 individuals (15 to 35 years old) were selected and divided into the Non-Athletes Group (NAG), consisting of 14 individuals without neurologic or musculoskeletal injury; and the CP Group (CPG), composed of 14 athletes from the regional football team. A force platform was used to measure anteroposterior displacement of center of pressure (COPap), velocity (COPvel), mediolateral displacement (COPml), and 95% confidence ellipse area (AREA95) on bipedal and unipedal stance. On bipedal stance, there was no difference between groups in anteroposterior displacement of center of pressure (COPap) and velocity (COPvel). On unipedal stance with the dominant leg, the NAG presented better postural control, statistically significant in mediolateral displacement (COPml), 95% confidence ellipse area (AREA95) and COPap (p = 0.003; p = 0.001; p = 0.018, respectively). Our results showed that both groups have similar postural control on bipedal stance, but NAG demonstrated better postural control with unipedal stance than Football 7-a-side players with CP.

scholarly journals The effect of floor reaction ankle foot orthosis on postural control in children with spastic cerebral palsy

2011 ◽  
Vol 36 (1) ◽  
pp. 71-76 ◽  
Author(s):  
Mahmood Bahramizadeh ◽  
Mohammad Ebrahim Mousavi ◽  
Mehdi Rassafiani ◽  
Gholamreza Aminian ◽  
Ismail Ebrahimi ◽  
...  
Keyword(s):  
Cerebral Palsy ◽  
Postural Control ◽  
Sagittal Plane ◽  
Standing Position ◽  
Force Platform ◽  
Spastic Cerebral Palsy ◽  
Phase Plate ◽  
Ankle Foot Orthosis ◽  
Objective Evidence ◽  
Foot Orthosis

Background: Children with cerebral palsy (CP) often demonstrate postural control difficulties. Orthotic management may assist in improving postural control in these children.Objective: The purpose of this investigation was to examine the influence of floor reaction ankle foot orthosis (FRAFO) on postural flexion called the crouch position in children with CP.Study Design: Quasi-experimental.Methods: Eight children with spastic diplegic CP and eight matched typically developing children participated in this study. Postural control of children with CP was assessed in a static standing position on a force platform with/without a FRAFO. The parameters used were centre of pressure (CoP) measures, calculated from force platform signals including the standard deviation (SD) of excursion; phase plate portrait and SD of velocity in anteroposterior (AP) and mediolateral (ML) directions.Results: The maximum knee extension was statistically significant in children with CP when barefoot compared to wearing braced footwear ( p < 0.05, t = 10.01). AP and ML displacement, AP velocity and AP phase plate portrait of CoP were not statistically significant between children with CP with/without a FRAFO ( p < 0.05).Conclusion: FRAFO can improve the alignment of the knee, but may not be helpful in improving postural control in children with CP in a short time period.Clinical relevanceThis article will provide objective evidence about the effect of FRAFO on the postural control in children with CP. Therapists can use FRAFO to effectively decrease the knee joint angle in the sagittal plane in children with spastic CP, but cannot use it to improve the postural control.

scholarly journals Reliability of Center of Pressure Measures for Assessing the Development of Sitting Postural Control in Infants With or at Risk of Cerebral Palsy

2010 ◽  
Vol 91 (10) ◽  
pp. 1593-1601 ◽  
Author(s):  
Anastasia Kyvelidou ◽  
Regina T. Harbourne ◽  
Valerie K. Shostrom ◽  
Nicholas Stergiou
Keyword(s):  
At Risk ◽  
Cerebral Palsy ◽  
Postural Control ◽  
Center Of Pressure

scholarly journals A Comparison of Interventions for Children With Cerebral Palsy to Improve Sitting Postural Control: A Clinical Trial

2010 ◽  
Vol 90 (12) ◽  
pp. 1881-1898 ◽  
Author(s):  
Regina T. Harbourne ◽  
Sandra Willett ◽  
Anastasia Kyvelidou ◽  
Joan Deffeyes ◽  
Nicholas Stergiou
Keyword(s):  
Cerebral Palsy ◽  
Postural Control ◽  
Outcome Measure ◽  
Center Of Pressure ◽  
Time Factors ◽  
Primary Outcome Measure ◽  
Gross Motor Function Measure ◽  
Main Effect ◽  
To Receive ◽  
Function Measure

Background The ability to sit independently is fundamental for function but delayed in infants with cerebral palsy (CP). Studies of interventions directed specifically toward sitting in infants with CP have not been reported. Objective The purpose of this study was to compare 2 interventions for improving sitting postural control in infants with CP. Design For this randomized longitudinal study, infants under 2 years of age and at risk for CP were recruited for intervention directed toward sitting independence. Setting The intervention was conducted at home or at an outpatient facility. Patients and Intervention Fifteen infants with typical development (mean age at entry=5 months, SD=0.5) were followed longitudinally as a comparison for postural variables. Thirty-five infants with delays in achieving sitting were recruited. Infants with delays were randomly assigned to receive a home program (1 time per week for 8 weeks; mean age=15.5 months, SD=7) or a perceptual-motor intervention (2 times per week for 8 weeks; mean age=14.3 months, SD=3). Measurements The primary outcome measure was center-of-pressure (COP) data, from which linear and nonlinear variables were extracted. The Gross Motor Function Measure (GMFM) sitting subsection was the clinical outcome measure. Results There was a main effect of time for the GMFM sitting subscale and for 2 of the COP variables. Interaction of group × time factors indicated significant differences between intervention groups on 2 COP measures, in favor of the group with perceptual-motor intervention. Limitations The small number of infants limits the ability to generalize the findings. Conclusions Although both groups made progress on the GMFM, the COP measures indicated an advantage for the group with perceptual-motor intervention. The COP measures appear sensitive for assessment of infant posture control and quantifying intervention response.

scholarly journals Short- and Mid-Term Improvement of Postural Balance after a Neurorehabilitation Program via Hippotherapy in Patients with Sensorimotor Impairment after Cerebral Palsy: A Preliminary Kinetic Approach

2019 ◽  
Vol 9 (10) ◽  
pp. 261 ◽  
Author(s):  
Hélène Viruega ◽  
Inès Gaillard ◽  
John Carr ◽  
Bill Greenwood ◽  
Manuel Gaviria
Keyword(s):  
Cerebral Palsy ◽  
Postural Control ◽  
Postural Balance ◽  
Center Of Pressure ◽  
Muscle Tone ◽  
Dynamic Balance ◽  
Therapeutic Modalities ◽  
Horse Riding ◽  
Sensorimotor Impairment

There is still a lack of studies focused on trunk neurorehabilitation. Accordingly, it is unclear which therapeutic modalities are the most effective in improving static/dynamic balance after brain damage. We designed a pilot study on hippotherapy to assess its short- and mid-term effect on dynamic postural balance in patients with moderate-to-severe sensorimotor impairment secondary to cerebral palsy. Five patients aged 15.4 ± 6.1 years old were recruited. All of them had moderate-to-severe alterations of the muscle tone with associated postural balance impairment. Standing and walking were also impaired. Ten minutes horse riding simulator followed by twenty minutes hippotherapy session were conducted during five session days separated by one week each. We analyzed the displacement of the Center of Pressure (COP) on the sitting surface of the simulator’s saddle by means of a customized pressure pad. We measured the general behavior of the COP displacement as well as the postural adjustments when pace changed from walk to trot to walk during the sessions and among sessions. Statistical analysis revealed an improved postural control both by the end of the session and from session 1 to session 5. These results suggest that hippotherapy might support regularization of postural control in a long-term neurorehabilitation context.

scholarly journals Vibration of the Whole Foot Soles Surface Using an Inexpensive Portable Device to Investigate Age-Related Alterations of Postural Control

2021 ◽  
Vol 15 ◽  
Author(s):  
Lydiane Lauzier ◽  
Mohamed Abdelhafid Kadri ◽  
Emilie Bouchard ◽  
Kevin Bouchard ◽  
Sébastien Gaboury ◽  
...  
Keyword(s):  
Postural Control ◽  
Center Of Pressure ◽  
Aging Population ◽  
Force Platform ◽  
Portable Device ◽  
Postural Adjustments ◽  
Age Related ◽  
Combined Use ◽  
Postural Performance ◽  
Related Increase

Background: Standing on a foam surface is used to investigate how aging affect the ability to keep balance when somatosensory inputs from feet soles become unreliable. However, since standing on foam also affects the efficacy of postural adjustments, the respective contributions of sensory and motor components are impossible to separate. This study tested the hypothesis that these components can be untangled by comparing changes of center of pressure (CoP) parameters induced by standing on a foam pad vs. a novel vibration (VIB) platform developed by our team and targeting feet soles’ mechanoreceptors.Methods: Bipedal postural control of young (n = 20) and healthy elders (n = 20) was assessed while standing barefoot on a force platform through 3 randomized conditions: (1) Baseline (BL); (2) VIB; and (3) Foam. CoP Amplitude and Velocity in the antero-posterior/medio-lateral (AP/ML) directions and COP Surface were compared between conditions and groups.Findings: Both VIB and Foam increased CoP parameters compared to BL, but Foam had a significantly greater impact than VIB for both groups. Young and Old participants significantly differed for all three Conditions. However, when correcting for BL levels of postural performance, VIB-related increase of COP parameters was no longer different between groups, conversely to Foam.Interpretation: Although both VIB and Foam highlighted age-related differences of postural control, their combined use revealed that “motor” and “sensory” components are differently affected by aging, the latter being relatively unaltered, at least in healthy/active elders. The combined used of these methods could provide relevant knowledge to better understand and manage postural impairments in the aging population.

scholarly journals Postural Control of Healthy Elderly Individuals Compared to Elderly Individuals with Stroke Sequelae

2016 ◽  
Vol 10 (1) ◽  
pp. 1-8 ◽  
Author(s):  
Fábio Marcon Alfieri ◽  
Marcelo Riberto ◽  
José Augusto Fernandes Lopes ◽  
Thais Raquel Filippo ◽  
Marta Imamura ◽  
...  
Keyword(s):  
Postural Control ◽  
Center Of Pressure ◽  
Force Platform ◽  
Control Group ◽  
Timed Up And Go ◽  
Cross Sectional ◽  
Elderly Individuals ◽  
Eyes Closed ◽  
Healthy Elderly ◽  
Elderly Control

A stroke and aging process can modify the postural control. We aimed to compare the postural control of health elderly individuals to that of individuals with stroke sequelae. This cross-sectional transversal study was made with individuals capable of walking without any assistance and that were considered clinically stable. The study had 18 individuals in the group with stroke sequelae (SG) and 34 in the healthy elderly control group (CG). The participants were evaluated for the timed up and go test (TUG) and force platform. The SG showed the worst results in relation to the time of execution of the TUG and the force platform evaluation. The displacement of center of pressure was worse for both groups in the eyes-closed situation, especially in the anteroposterior direction for the CG. The GS showed worse results in the static and dynamic postural control. The healthy elderly showed more dependence on sight to maintain their static balance and there was no difference in the balance tests in relation to the side affected by the stroke.

The Effect of Footrest on Standing Postural Control

Motor Control ◽  
2015 ◽  
Vol 19 (3) ◽  
pp. 207-222 ◽  
Author(s):  
Mohan Ganesan ◽  
Yun-Ju Lee ◽  
Alexander S. Aruin
Keyword(s):  
Postural Control ◽  
Postural Stability ◽  
Center Of Pressure ◽  
Well Being ◽  
Force Platform ◽  
Experimental Conditions ◽  
Additional Information ◽  
Eyes Closed ◽  
Mean Square Distance

The use of a footrest while performing activity in standing is frequently associated with improvement of a user’s well-being however no information exists on the role of a footrest in improving postural stability. The aim of the study was to evaluate the effects of using a footrest in postural control. Twenty healthy young volunteers were tested using three experimental conditions: standing with two feet on the force platform and standing on the force platform when one foot was placed on a 15 cm footrest positioned in front or laterally. The mean and root mean square distance, range and velocity of the center of pressure (COP) were calculated in the anterior-posterior (AP) and medio-lateral (ML) directions using the force platform data. The COP displacements in AP and ML directions increased in conditions of standing with one foot placed on the footrest regardless of its location. Standing with eyes closed increased COP displacements further. The outcome of the study suggests the importance of using COP measures for evaluation of postural stability and provides additional information needed for optimization of working conditions involving standing with a footrest.

scholarly journals Reliability of center of pressure excursion as a measure of postural control in bipedal stance of individuals with intellectual disability: A pilot study

PLoS ONE ◽  
2020 ◽  
Vol 15 (10) ◽  
pp. e0240702
Author(s):  
Roi Charles Pineda ◽  
Ralf Th Krampe ◽  
Yves Vanlandewijck ◽  
Debbie Van Biesen
Keyword(s):  
Intellectual Disability ◽  
Pilot Study ◽  
Postural Control ◽  
Center Of Pressure ◽  
Bipedal Stance

scholarly journals Comparison of two methods of postural control analysis during upright and quiet stance

2009 ◽  
Vol 4 (1) ◽  
pp. 30-36
Author(s):  
Ana Maria Forti Barela ◽  
Diego Alveno ◽  
Claudia Garcia ◽  
Cássio A. Pereira
Keyword(s):  
Young Adults ◽  
Postural Control ◽  
Center Of Pressure ◽  
Force Platform ◽  
Control Analysis ◽  
Quiet Stance ◽  
Mean Velocity ◽  
Methods Of Analysis ◽  
Strong Relation ◽  
Base Of Support

The goal of this study was to compare two methods of analysis, the use of force platform and based on video system, to investigate the postural control of young adults during upright stance on three bases of support. Fifteen young adults (30±4.96 years old) were asked to maintain an upright and quiet stance on a force platform for 30 s on bipedal, semi-tandem stance, and reduced bipedal bases of support. One reflective marker was placed on their back to acquire the space coordinates. Mean sway amplitude and mean velocity in anterior-posterior (AP) and medial-lateral (ML) directions and the area of stabilogram were calculated and used to compare the two methods of analysis and the effects of bases of support. Coefficient of correlation values indicated strong relation between trajectories of center of pressure and reflective marker in both directions (AP and ML), and statistical analysis of both methods indicated similar results in terms of effects of base of support. According to these results it might be suggested that both methods of analysis to investigate the control of upright and quiet stance in young adults can be used.  

scholarly journals The presence of corticomuscular coherence during unipedal stance

2021 ◽  
Author(s):  
Sylmina Dalily Alkaff ◽  
Junichi Ushiyama
Keyword(s):  
Postural Control ◽  
Isometric Contraction ◽  
Sensorimotor Cortex ◽  
Center Of Pressure ◽  
Medial Gastrocnemius ◽  
Bipedal Stance ◽  
Corticomuscular Coherence ◽  
Cortical Involvement ◽  
Base Of Support ◽  
Surface Electromyograms

Objective: To elucidate cortical involvement in postural control during unipedal stance by observing corticomuscular coherence (CMC) between the sensorimotor cortex and ankle joint muscles. Methods: Twenty-one participants performed three tasks: bipedal stance, unipedal stance, and isometric contraction. We measured the maximal peak of CMC (CMCmax) between electroencephalograms overlying the foot representation area and surface electromyograms from the tibialis anterior (TA), medial gastrocnemius (MG), lateral gastrocnemius (LG), and soleus (SOL), respectively, for each task. We measured the center of pressure (COP) during both stance tasks. Results: Although there was no significant CMC during bipedal stance, significant CMC was observed for all muscles during unipedal stance, with larger COP fluctuation. The results revealed significant differences in CMCmax between unipedal and bipedal stance tasks (TA, p = 0.002; MG, p = 0.016; LG, p = 0.003; SOL, p = 0.009). Additionally, CMCmax was obtained in higher frequency bands during the unipedal stance task than during the isometric contraction task. Conclusions: Significant CMC indicates direct involvement of the sensorimotor cortex in postural control during unipedal stance. Significance: Greater postural demands due to narrow base-of-support during unipedal stance requires voluntary control of muscle activity by the sensorimotor cortex.

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