scholarly journals Abnormal hypersynchronization of body balance control system in children with post-burn foot deformity

2019 ◽  
Vol 7 (2) ◽  
pp. 61-68
Author(s):  
Igor E. Nikityuk ◽  
Elizaveta L. Kononova ◽  
Maksim S. Nikitin ◽  
Konstantin A. Afonichev
Keyword(s):  
Control System ◽  
Postural Control ◽  
Balance Control ◽  
The Body ◽  
Back Surface ◽  
Control Group ◽  
Foot Deformities ◽  
Foot Deformity ◽  
Body Balance ◽  
Reconstructive Operations

Relevance. Treatment of children with post-burn foot deformities is an important task of reconstructive plastic surgery. The scars formed on the back surface of the feet, even with adequate surgical approach, in the acute period of thermal injury, further often lead to deformities of the entire foot, which leads to a derangement of its support function. The importance of the problem lies in the fact that with the growth of the child, secondary abnormal changes develop on the part of the joints of the lower extremities and the spine, leading to impaired locomotor function, including deviations in the body balance control system. Purpose of the study. To study postural stability in children with post-burn foot deformities before and after surgical treatment. Material and methods. The stabilometric study was conducted in 12 patients with post-burn cicatricial foot deformity, the average age of the patients was 9.8 ± 0.93 years old. The control group consisted of 12 children of the same age with no signs of orthopedic abnormality. To assess the results, the methods of descriptive statistics with the inclusion of correlation and regression analysis were used. Results. In patients with post-burn cicatricial deformity of the foot at the pre-treatment stage, a compensatory redistribution of the static load towards the intact lower limb was revealed. Analysis of postural control indicators in patients of the main group showed an abnormal increase in the synchronization of the system of body balance control. After reconstructive operations on the affected foot, symmetry of the distribution of the load and restoration of the support of the limb of the affected side were noted. Correlation analysis revealed a pronounced decrease in abnormal hypersynchronization between stabilometric parameters, which may indicate a trend towards normalization of the postural control strategy in patients after treatment. Conclusion. Elimination of post-burn foot deformity contributed to the restoration of its anatomical shape and was accompanied by pronounced positive dynamics in the state of the system of vertical balance of the patient’s body.

Prolonged Standing Task Affects Adaptability of Postural Control in People With Parkinson’s Disease

2020 ◽  
Vol 35 (1) ◽  
pp. 58-67
Author(s):  
Gabriel Felipe Moretto ◽  
Felipe Balistieri Santinelli ◽  
Tiago Penedo ◽  
Luis Mochizuki ◽  
Natalia Madalena Rinaldi ◽  
...  
Keyword(s):  
Parkinson’S Disease ◽  
Parkinson's Disease ◽  
Control System ◽  
Postural Control ◽  
The Body ◽  
Quiet Standing ◽  
Body Sway ◽  
Control Group ◽  
Postural Control System ◽  
Prolonged Standing

Background Studies on short-term upright quiet standing tasks have presented contradictory findings about postural control in people with Parkinson’s disease (pwPD). Prolonged trial durations might better depict body sway and discriminate pwPD and controls. Objective The aim of this study was to investigate postural control in pwPD during a prolonged standing task. Methods A total of 26 pwPD and 25 neurologically healthy individuals performed 3 quiet standing trials (60 s) before completing a constrained prolonged standing task for 15 minutes. Motion capture was used to record body sway (Vicon, 100 Hz). To investigate the body sway behavior during the 15 minutes of standing, the analysis was divided into three 5-minute-long phases: early, middle, and late. The following body sway parameters were calculated for the anterior-posterior (AP) and medial-lateral (ML) directions: velocity, root-mean-square, and detrended fluctuations analysis (DFA). The body sway area was also calculated. Two-way ANOVAs (group and phases) and 1-way ANOVA (group) were used to compare these parameters for the prolonged standing and quiet standing, respectively. Results pwPD presented smaller sway area ( P < .001), less complexity (DFA; AP: P < .009; ML: P < .01), and faster velocity (AP: P < .002; ML: P < .001) of body sway compared with the control group during the prolonged standing task. Although the groups swayed similarly (no difference for sway area) during quiet standing, they presented differences in sway area during the prolonged standing task ( P < .001). Conclusions Prolonged standing task reduced adaptability of the postural control system in pwPD. In addition, the prolonged standing task may better analyze the adaptability of the postural control system in pwPD.

scholarly journals Acute and sub-acute changes in dynamic postural control following hip arthroscopy and post-operative rehabilitation.”

2021 ◽  
Author(s):  
Matthew D Freke ◽  
Matthew King ◽  
Kay M Crossley ◽  
Kevin J Sims ◽  
Adam Semciw
Keyword(s):  
Postural Control ◽  
Hip Arthroscopy ◽  
Balance Control ◽  
Dynamic Balance ◽  
Hip Pain ◽  
Control Group ◽  
Healthy Controls ◽  
Pain Group ◽  
Post Surgery ◽  
Significant Difference

Abstract Context: Hip pain is associated with impairments in postural control and balance. The Star Excursion Balance Test (SEBT) is a reliable and valid method to measure dynamic postural control. Objective: Examine changes to dynamic postural control following hip arthroscopy and subsequent rehabilitation from pre-surgery to three and six months post arthroscopy. Setting: Sixty-seven individuals (47 men) scheduled for hip arthroscopy to address chondrolabral pathology were matched with sixty-seven healthy controls. The hip pain group underwent post-operative rehabilitation including SEBT training. Main outcome measures: SEBT reach normalized to limb length was collected pre-surgery and at three and six months post surgery, and compared with healthy matched controls. Repeated measure analysis of variance (ANOVA) evaluated whether SEBT reach differed between the three time points and t-tests were used to evaluate between-limb and between-group differences. Results: Pre-surgical SEBT reach was significantly less than the control group in all directions (p&lt;0.001). At three months post surgery, SEBT reach significantly increased in the posterior-lateral (PL) (p&lt;0.001), anterior-lateral (AL) (p&lt;0.001) and posterior-medial (PM) (p=0.006) directions from pre-surgery. At six months post surgery, all directions of reach had significantly increased (p&lt;0.001) from baseline. Compared to the control group, AL (−2.5 %, p=0.038), anterior medial (AM) (−2.9%, p=0.019) and posterior-medial (PM) (−5.2%, p= 0.002) reach remained significantly less at six months post surgery. No significant difference existed between the control and surgical groups for reach in the PL (−3.6%, p=0.061) direction. Conclusions: Pre-surgical dynamic balance control within a hip pain group was significantly poorer than matched controls as measured by the SEBT. At three months post hip arthroscopy, there were significant improvements in dynamic balance in the PM, PL and AL SEBT directions. By six months post surgery, all directions of SEBT reach had significantly improved but only PL reach improved to the level of healthy controls.

scholarly journals THE INFLUENCE OF DIABETIC FOOT GYMNASTIC TO BODY BALANCE IN ELDERLY DIABETES MELLITUS PATIENTS IN GATOEL MOJOKERTO HOSPITAL DIABETIC CLUB

2019 ◽  
Vol 2 (03) ◽  
pp. 281-288
Author(s):  
Abdul Muhith Muhith ◽  
Hannan Mujib Mujib ◽  
Dwi Helynarti S ◽  
M Himawan S ◽  
Ismawati S S ◽  
...  
Keyword(s):  
Diabetes Mellitus ◽  
Elderly People ◽  
Diabetic Foot ◽  
Intervention Group ◽  
The Body ◽  
Rank Test ◽  
Control Group ◽  
P Value ◽  
Body Balance ◽  
Body Tissues

Diabetes mellitus suffers from insulin deficiency which inhibited the transfer of glucose to cells in body tissues that cause starvation cells an in the increase in glucose in the blood that leads to muscle weakness thus disrupt the body’s balance and increase the risk of falling. Diabetic foot exercises aim to improved blood circulation in the feet of people with diabetes mellitus, so that nutrient smoothly to the network. The purpose of this study to determine the effect of diabetic foot gymnastics on body balance elderly people with diabetes mellitus in Diabetic Club Gatoel Hospital Mojokerto in the 27 February – 25 March 2017. This research used a Quasy Experimental method with Pretest-Posttest with Control Group Design. The sampling technique used Simple Random Sampling with the sample of 17 respondents for the control group and 17 respondents for the intervention group. Wilcoxon Signed Rank Test obtained p-value 0,000 < 0,05 concluded that there is an influence of diabetic foot exercises on body balance in elderly people with diabetes mellitus in Diabetic Club Gatoel Hospital Mojokerto. The study recommended that elderly people with diabetes mellitus is expected to take advantage of diabetic foot exercises as an effort to improve the balance of the body to reduce the incidence of fall.

Biomechanical, Perceptual, and Cognitive Factors Involved in Maintaining Postural Control While Standing or Walking on Non-Moving and Moving Surfaces: A Literature Review

2010 ◽  
Author(s):  
Kathleen Allen Rodowicz ◽  
Rahmat Muhammad ◽  
Michelle Heller ◽  
Joseph Sala ◽  
Chimba Mkandawire
Keyword(s):  
Postural Control ◽  
Musculoskeletal System ◽  
Muscle Activation ◽  
Balance Control ◽  
Muscle Tone ◽  
Sensory Information ◽  
Transportation Systems ◽  
The Body ◽  
Cognitive Factors ◽  
Moving Surface

Postural control has been defined as “regulating the body’s position in space for the dual purposes of stability and orientation.” How the body achieves postural control depends, in part, on the environment. A person navigating a non-moving surface (e.g. hallway, stairway, or step ladder) will process information and will employ different strategies to maintain postural control than someone who is standing or walking on a moving surface (e.g., forklifts, personal transportation systems, escalators, and moving walkways). In both environments, sensory, cognitive, and motor control systems contribute to postural control. The musculoskeletal system uses muscle activation and joint positioning to control the body’s alignment and muscle tone. The biomechanics of postural control rely on information that the musculoskeletal system receives from sensory systems including the vestibular system, which is generally implicated in behaviors requiring balance control, as well as the somatosensory and visual systems. Furthermore, sensory information from these and other systems can be enhanced by cognitive processes, such as attention. The ability to maintain postural control while standing or walking is critical in preventing falls on both non-moving and moving surfaces. This review focuses on moving surfaces and includes a discussion of the biomechanical, perceptual, and cognitive factors responsible for postural control.

scholarly journals Balance and postural control in basketball players

2017 ◽  
Vol 30 (2) ◽  
pp. 319-328 ◽  
Author(s):  
Murilo Curtolo ◽  
Helga Tatiana Tucci ◽  
Tayla P. Souza ◽  
Geiseane A. Gonçalves ◽  
Ana C. Lucato ◽  
...  
Keyword(s):  
Postural Control ◽  
Repeated Measures ◽  
Balance Control ◽  
Weight Bearing ◽  
Cross Sectional Study ◽  
Control Group ◽  
Basketball Players ◽  
Balance Test ◽  
Cross Sectional ◽  
Step Down

Abstract Introduction: Basketball is one of the most popular sports involving gestures and movements that require single-leg based support. Dorsiflexion range of motion (DROM), balance and postural control may influence the performance of this sport. Objective: To compare and correlate measures of balance, postural control and ankle DROM between amateur basketball athletes and non-athletes. Methods: Cross-sectional study, composed by 122 subjects allocated into one control group (CG = 61) and one basketball group (BG = 61). These groups were subdivided into two other groups by age: 12-14 years and 15-18 years. The participants were all tested for postural balance with the Star Excursion Balance Test (SEBT), postural control with the Step-down test and DROM with the Weight-bearing lunge test (WBLT). Between-groups differences were compared using repeated-measures multivariate analysis of variance. Normalized reaching distances were analyzed and correlated with the WBLT and Step-down test. Results: There was no difference in the scores of WBLT (P = .488) and Step-down test (P =. 916) between the groups. Scores for the anterior reach (P = .001) and total score of SEBT (P = .030) were higher in BG. The values for the posterolateral (P = .001) and posteromedial reach (P = .001) of SEBT were higher in BG at the age of 15-18. The correlation between the anterior reach of the SEBT and WBLT was significant in BG between 12-14 years (r = 0.578, P = .008), and in the CG between 15-18 years (r = 0.608, P=.001). Conclusion: The balance was better in the BG, although adolescents between 15-18 years have better balance control for the posteromedial and posterolateral reaches of the SEBT.

scholarly journals Acute effects of contract-relax proprioceptive neuromuscular facilitation stretching of hip abductors and adductors on dynamic balance

PeerJ ◽  
2018 ◽  
Vol 6 ◽  
pp. e6108 ◽  
Author(s):  
Rafał Szafraniec ◽  
Krystyna Chromik ◽  
Amanda Poborska ◽  
Adam Kawczyński
Keyword(s):  
Single Dose ◽  
Balance Control ◽  
Dynamic Balance ◽  
Intervention Group ◽  
Control Group ◽  
Body Balance ◽  
Golgi Tendon Organs ◽  
Increased Risk ◽  
Proprioceptive Neuromuscular Facilitation ◽  
The Impact

Background Balance control has been shown to play a fundamental role both in everyday life and many athletic activities. An important component of balance control is the somatosensory information gained from muscle spindles and Golgi tendon organs. The changes in the muscle-tendon unit stiffness could alter the ability to detect and respond promptly to changes of an unstable environment. One of the procedures affecting muscle stiffness is stretching, and contract-relax PNF stretching (CRS) is considered as one of the safest and most effective techniques. So far, there are no studies on the impact of CRS of hip adductor and abductor muscles on body balance. These muscle groups are responsible for maintaining mediolateral balance which is of particular interest, since it is more affected by ageing and disease and since its deterioration has been associated with an increased risk of falling. In light of the above, the aim of the present study was to investigate the effects of a single dose of contract-relax proprioceptive neuromuscular facilitation stretching of hip adductors and abductors on mediolateral dynamic balance. Methods The study involved 45 healthy individuals (age 19–23 years) assigned to the intervention group (IG) or the control group (CG). Balance testing was carried out before (Pre) and immediately after CRS in the intervention group or after 5-minute rest in the control group (Post). There were performed three repetitions of the CRS targeting the adductor and abductor muscles of the hip. Results Statistically significant differences between Pre and Post condition were observed only in the intervention group. The values of all measured variables defining the body’s dynamic balance were significantly lower immediately after the applied CRS, which indicates an improved body balance: Global Index (p = 0.0001), total area of sway (p = 0.0001), external area of sway (p = 0.00004), external time (p = 0.0004) and reaction time (p = 0.0003). Conclusions A single dose of contract-relax proprioceptive neuromuscular facilitation stretching of the hip adductor and abductor muscles improved mediolateral dynamic balance.

scholarly journals Postural control in top-level female volleyball players

2020 ◽  
Vol 12 (1) ◽  
Author(s):  
Dorota Borzucka ◽  
Krzysztof Kręcisz ◽  
Zbigniew Rektor ◽  
Michał Kuczyński
Keyword(s):  
Postural Control ◽  
Postural Sway ◽  
Center Of Pressure ◽  
Balance Control ◽  
Sampling Rate ◽  
Force Plate ◽  
Peak Frequency ◽  
Control Group ◽  
Mean Velocity ◽  
Volleyball Players

Abstract Background The aim of this study was to compare the postural control of the Poland national women’s volleyball team players with a control group of non-training young women. It was hypothesized that volleyball players use a specific balance control strategy due to the high motor requirements of their team sport. Methods Static postural sway variables were measured in 31 athletes and 31 non-training women. Participants were standing on a force plate with eyes open, and their center of pressure signals were recorded for the 20s with the sampling rate of 20 Hz in the medial-lateral (ML) and anterior-posterior (AP) planes. Results In both AP and ML planes, athletes had lower range and higher fractal dimension of the COP. They had also higher peak frequency than control group in the ML plane only. The remaining COP indices including variability, mean velocity and mean frequency did not display any intergroup differences. Conclusion It can be assumed that due to the high motor requirements of their sport discipline Polish female volleyball players have developed a unique posture control. On the court they have to distribute their sensory resources optimally between balance control and actions resulting from the specifics of the volleyball game. There are no clearly defined criteria for optimal postural strategies for elite athletes, but they rather vary depending on a given sport. The results of our research confirm this claim. Trial registration The tests were previously approved by the Bioethical Commission of the Chamber of Physicians in Opole. (Resolution No. 151/13.12.2007). This study adheres to the CONSORT guidelines.

Sensory Substitution for Balance Control Using a Vestibular-to-Tactile Device

2014 ◽  
Vol 27 (5-6) ◽  
pp. 313-336 ◽  
Author(s):  
Bruno Diot ◽  
Petra Halavackova ◽  
Jacques Demongeot ◽  
Nicolas Vuillerme
Keyword(s):  
Postural Control ◽  
Muscle Fatigue ◽  
Balance Control ◽  
Sensory Substitution ◽  
Control Group ◽  
Flexor Muscle ◽  
Postural Control System ◽  
Balance System ◽  
Vestibular Cues ◽  
Ankle Muscle

Postural control is essential for most activities of daily living. The impairment of this function can be extremely disabling. This work was stimulated by the testimony of a bilateral partial foot amputee who describes his difficulty in maintaining balance while washing his hair in the shower. We postulated that if the postural control system could not rely on accurate and reliable somatosensory inputs from the foot and ankle, as is probably the case following bilateral foot amputation due to the loss of the foot afferents and efferents, the weight of visual and vestibular cues would increase. We therefore assessed if a vestibular-to-tactile sensory substitution device could compensate for this impairment. Two separate experiments were conducted. Experiment 1: The effect of a vestibular-to-tongue tactile biofeedback balance system on the postural stability of this amputee was tested (on a force platform) and compared with a non-amputated, matched control group. The results showed that use of the biofeedback reduced centre of foot (CoP) displacement in all subjects but more spectacularly in the amputee. Experiment 2: The effect of the biofeedback was tested in 16 young healthy adults following a protocol of ankle muscle fatigue (known to alter ankle neuromuscular function and to perturb the control of bipedal posture). The results showed a significant decrease in CoP displacement compared with the control, non-biofeedback condition and a significantly greater effect of the biofeedback in the fatigue than the non-fatigue condition. Taken together, the results of these two studies suggest that an individual with double partial foot amputation was able to improve his balance control thanks to the use of a vestibular-to-tongue tactile biofeedback balance system and that young healthy individuals were able to take advantage of it to reduce the postural destabilisation induced by plantar-flexor muscle fatigue. Further studies are however necessary to confirm this in larger numbers of impaired persons as well as to assess the effectiveness in dynamic situations.

scholarly journals An Engineering Model to Test for Sensory Reweighting: Nonhuman Primates Serve as a Model for Human Postural Control and Vestibular Dysfunction

2017 ◽  
Vol 140 (1) ◽  
Author(s):  
Lara A. Thompson ◽  
Csilla Haburcakova ◽  
Adam D. Goodworth ◽  
Richard F. Lewis
Keyword(s):  
Control System ◽  
Rhesus Monkey ◽  
Postural Control ◽  
Nonhuman Primate ◽  
Nonhuman Primates ◽  
Balance Control ◽  
Vestibular Dysfunction ◽  
Sensory Reweighting ◽  
Vestibular Loss ◽  
Roll Tilt

Quantitative animal models are critically needed to provide proof of concept for the investigation of rehabilitative balance therapies (e.g., invasive vestibular prostheses) and treatment response prior to, or in conjunction with, human clinical trials. This paper describes a novel approach to modeling the nonhuman primate postural control system. Our observation that rhesus macaques and humans have even remotely similar postural control motivates the further application of the rhesus macaque as a model for studying the effects of vestibular dysfunction, as well as vestibular prosthesis-assisted states, on human postural control. Previously, system identification methodologies and models were only used to describe human posture. However, here we utilized pseudorandom, roll-tilt balance platform stimuli to perturb the posture of a rhesus monkey in normal and mild vestibular (equilibrium) loss states. The relationship between rhesus monkey trunk sway and platform roll-tilt was determined via stimulus–response curves and transfer function results. A feedback controller model was then used to explore sensory reweighting (i.e., changes in sensory reliance), which prevented the animal from falling off of the tilting platform. Conclusions involving sensory reweighting in the nonhuman primate for a normal sensory state and a state of mild vestibular loss led to meaningful insights. This first-phase effort to model the balance control system in nonhuman primates is essential for future investigations toward the effects of invasive rehabilitative (balance) technologies on postural control in primates, and ultimately, humans.

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