Temat: posturography - Prolib Integro

Skocz do pozycji: 1.

Tytuł:: The influence of the acoustic stimulus on postural stability
Autorzy:: Majewska, A.
Kawałkiewicz, W.
Hojan-Jezierska, D.
Jezierska, A.
Kubisz, L.
Tematy:: stabilność posturalna
stabilografia
symulacja
posturograf
postural stability
sound stimulation
static posturography
dynamic posturography; Pokaż więcej
Wydawca:: Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Powiązania:: https://bibliotekanauki.pl/articles/306562.pdf Link otwiera się w nowym oknie
Opis:: The purpose of this study was to assess if 65 dB and 4000 Hz stimuli affect postural stability of young normal hearing people. Methods: Posturography examinations belong to clinical tests which evaluate the motor skills. Posturography can be divided into static posturography and dynamic posturography. In both, static posturography and dynamic posturography, patient stays on the platform with opened and closed eyes, but in the case of dynamic one, platform is unstable. In this study the Multitest Equilibre platform produced by FRAMIRAL was used. Patients took part in tests with opened and closed eyes, on stable and unstable platform. Additionally patients were exposed to 65 dB and 4000 Hz acoustic stimuli. The sound pressure level, and frequency was belonging to the best audibly frequency range. Results: Parameters such as velocity and surface were examined. The difference between velocity measured with acoustic stimuli and without acoustic stimuli was observed. On the other hand there was no difference in surface results. Conclusions: The statistically significant difference between velocity of patients center of gravity movements, measured on unstable platform, in the presence of 4000 Hz, 65 dB acoustic stimulus and without additional disturbances was observed.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Posturography studies in patients with central and mixed vertigo Summary
Autorzy:: Fedorowicz, Jędrzej
Bielińska, Marzena
Olszewski, Jurek
Tematy:: posturography
central vertigo
mixed vertigo; Pokaż więcej
Wydawca:: Index Copernicus International
Powiązania:: https://bibliotekanauki.pl/articles/1398131.pdf Link otwiera się w nowym oknie
Opis:: Introduction: The aim of the study was to compare the results of posturography in patients with central and mixed vertigo. Material and methods: 50 patients (40 female and 10 male) aged between 26-47 complaining of vertigo were examined during their hospitalization in the Department of Otolaryngology, Laryngological Oncology, Audiology and Phoniatrics, Medical University of Lodz in 2014. The subjects were divided into two groups: I – 26 patients (23 female and 3 male) with central vertigo, II – 24 patients (17 female and 7 male) with mixed vertigo. The control group (III) consisted of 26 subjects, students and graduates of Lodz Universities, aged from 19 to 30, that did not complain of vertigo. The subjects were qualified to particular groups based on videonystagmography results. The examinations were conducted with “BioSway portable balance system” by Biodex. Results: In tests on a stable surface, with both closed and opened eyes, subjects with mixed vertigo coped slightly better. In tests on a sponge surface, subjects with central vertigo coped better. Conclusions: Based on the conducted research, it may be concluded that the ability to keep balance in subjects with central and mixed vertigo is on average three times lower than in population not suffering from vertigo episodes.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Bedside examination for vestibular screening in occupational medicine
Autorzy:: Zamysłowska-Szmytke, Ewa
Szostek-Rogula, Sylwia
Śliwińska-Kowalska, Mariola
Tematy:: balance
videonystagmography
posturography
occupational medicine
vertigo; Pokaż więcej
Wydawca:: Instytut Medycyny Pracy im. prof. dra Jerzego Nofera w Łodzi
Powiązania:: https://bibliotekanauki.pl/articles/2177393.pdf Link otwiera się w nowym oknie
Opis:: Objectives The aim of the study was to assess the usefulness of bedside examination for screening of vestibular and balance system for occupational medicine purposes. Study group comprised 165 patients referred to Audiology and Phoniatric Clinic due to vestibular and/or balance problems. Caloric canal paresis of 19% was the cut off value to divide patients into 43 caloric-positive vestibular subjects and 122 caloric-negative patients. The latter group comprised 79 subjects revealing abnormalities of videonystagmographic (VNG) oculomotor tests (central group) and 43 subjects with normal VNG. Material and Methods Vestibular and balance symptoms were collected. Five tests were included to bedside examination: Romberg and Unterberger tests, Head Impulse Test (HIT), Dynamic Visual Acuity (DVA) and gaze nystagmus assessment. Results Vestibular and balance symptoms were reported by 82% of vestibular, 73% of central and 40% of VNG-normal patients. Thirteen out of 18 VNG-normal but symptomatic subjects (73%) had abnormal tests in clinical assessment. The sensitivity of bedside test set for vestibular pathology was 88% as compared to caloric test and 68% for central pathology as compared to VNG oculomotor tests. Conclusions The combination of 5 bedside tests reveal satisfactory sensitivity to detect vestibular abnormalities. Bedside examination abnormalities are highly correlated with vestibular/balance symptoms, regardless the normal results of VNG. Thus, this method should be recommended for occupational medicine purposes.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Method for stabilogram characterization using angular-segment function
Autorzy:: Fiołka, J.
Kidoń, Z.
Tematy:: posturography
biomedical signal analysis
signal processing; Pokaż więcej
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Powiązania:: https://bibliotekanauki.pl/articles/201643.pdf Link otwiera się w nowym oknie
Opis:: This paper presents a new approach to descriptions of stabilograms. In the proposed method, a one-dimensional angular-segment function is generated from the stabilographic trajectory data. This allows to reduce the data dimensionality and makes the analysis easier. Moreover, three methods of angular-segment function parameterization are also presented in this study. The obtained results confirm the usefulness of the proposed parameters for medical diagnoses.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: The follow-up posturography in rehabilitation after total hip arthroplasty
Autorzy:: Pethe-Kania, K.
Opara, J. A.
Kania, D.
Kidoń, Z.
Łukaszewicz, T.
Tematy:: rehabilitacja
kontrola postawy ciała
posturograf
symetria postawy
rehabilitation
postural control
posturography
follow-up posturography
postural symmetry; Pokaż więcej
Wydawca:: Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Powiązania:: https://bibliotekanauki.pl/articles/307359.pdf Link otwiera się w nowym oknie
Opis:: Purpose: Presentation of the results of clinical study on new supplementary method applied in the physical rehabilitation of patients who underwent total hip arthroplasty. The standard rehabilitation program was supplemented with the lower limb loading symmetry training based on the follow-up posturography with an adaptively modified visual biofeedback, performed on a double plate posturographic platform. Methods: The research involved 60 randomly selected patients included in prospective and comparative clinical study in the scheme of the parallel groups. The subjects were divided into two groups comprised of 30 patients each. In both groups a conventional 21-day rehabilitation was carried out. Additionally, in experimental group the limb loading symmetry restoration training based on the follow-up posturography with an adaptively modified biofeedback was implemented. The biofeedback coefficient reflected the distribution of loading exerted on a given patient’s legs and was evaluated during the static posturography examinations carried out before each symmetry training session. Results: The eyes-open static posturography examinations indicated significant improvement in the lower limb loading symmetry in 29 (97%) patients from the experimental group ( p = 0.000003). In the control group, such an improvement was observed in 20 (67%) patients ( p = 0.034796). In the eyes closed examinations correction in the limb loading symmetry was evident in 23 (77%) patients from the experimental group ( p = 0.000247) and 18 (60%) patients from the control group ( p = 0.043327). Conclusions: Significant improvement in the lower limb loading symmetry was observed in patients who underwent rehabilitation supplemented with the herein discussed training method.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:: Posturographic methods for body posture symmetry assessment
Autorzy:: Łukaszewicz, T.
Kania, D.
Kidoń, Z.
Pethe-Kania, K.
Tematy:: posturography
follow-up posturography
postural symmetry assessment
biomedical signal processing
posturografia
metody posturografii
symetria postawy
przetwarzanie sygnałów biomedycznych; Pokaż więcej
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Powiązania:: https://bibliotekanauki.pl/articles/201826.pdf Link otwiera się w nowym oknie
Opis:: The article presents a number of posturographic methods enabling objective postural symmetry assessment in patients undergoing rehabilitation after total hip replacement surgery. The key goal of such rehabilitation is fast restoration of a proper body weight distribution. The postural symmetry measures proposed in the article enable generalized quantification of the CoP (Center of Pressure) trajectories measured during standard static posturography diagnostics and the so-called follow-up posturography examination. The follow-up posturography is a relatively new but promising method of physical rehabilitation. All of the herein discussed posturographic measures have been designed specifically to quantify postural symmetry either in a standing and relaxed upright position, in the absence of any deterministic external stimulation (static posturography) or in the presence of a visual biofeedback stimulation enforcing the coordinated slow swaying movements of the body (the follow-up posturography). The experimental results presented in this paper constitute the outcome of the long-term cooperation between the Institute of Electronics of the Silesian University of Technology and the Silesian Rheumatology and Rehabilitation Hospital. The usefulness of the proposed postural symmetry measures has been verified in a series of clinical trials carried out in a selected group of patients undergoing rehabilitation after total hip replacement surgery.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 7.

Tytuł:: The functional lateralization and computer dynamic posturography
Autorzy:: Tomaszewski, M.
Olchowik, G.
Olejarz, P.
Tomaszewska, M.
Tematy:: functional lateralization
computerized dynamic posturography
body balance; Pokaż więcej
Wydawca:: Akademia Bialska Nauk Stosowanych im. Jana Pawła II w Białej Podlaskiej
Powiązania:: https://bibliotekanauki.pl/articles/2052273.pdf Link otwiera się w nowym oknie
Opis:: Disorders in the functioning of the human body balance system exist in 20-30 % of adults and in 8-18% of children. The main causes of these aberrations are: benign positional vertigoes, migraine, anxiety disorders and depression, cerebrovascular diseases, brain traumas, labyrinthitis, toxic impairment of labyrinth, vestibular neuronitis, Ménière disease, brain tumours. Among the minor causes of these disorders are: internal ear disorders, inner ear circulation disorders, sclerosis multiplex (SM), epilepsy, arterial hypertension, postural hypertension, heart rhythm disorders, sclerosis, hypoglycaemia and involutional alternations (see: prezbiastazja). Human body balance disorders increase the risk of falls, which may threaten health and life. Frequency of these disorders raises with age, which is the cause of progressing degeneration of all the anatomical and functional systems, the efficiency of which affects the stability of the human body. Determination of the factors, which are related to a worse functioning of the body balance system of young people, who do not experience any clinical symptoms caused by this system is vital, especially in preventing falls and complications attributed to them. It allows to implement possibly early the preventive actions substantial for people encumbered by the risk factors. The aforesaid actions may consist in the alternation of a given factor (diet, sleep, physical activity). In case of the factors, which are not subject to modifications (i.e. heterogeneous form of the functional lateralization), it is essential to prevent potential diseases that disturb the functioning of the body balance system, which is already impaired. This study aimed to acquaint with the findings concerning the evaluation of the functional lateralization enriched with a new diagnostic tool – a computerized dynamic posturography. The computerized dynamic posturography (CPD) is a state-of-the-art and faultless evaluation tool of the functional lateralization. It provides a comprehensive knowledge, which concerns not only the preferences of the body, but also constitutes an objective and quantitative diagnostic method for the disorders in the functioning of the body balance system. CPD differentiates a few clinical protocols: the Sensory Organization Test (SOT); the Motor Control Test (MCT); the Adaptation Test (ADT). SOT evaluates the control of the body balance in different conditions (eyes closed/eyes opened; environment moves/ground moves) of the sensory systems stimulation. MCT assesses the postural reactions (body postures) in response to an unexpected changes in the location of the feet prop surface. ADT assesses the efficiency of the adaptation mechanisms in the body balance control.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 8.

Tytuł:: Niestabilność posturalna u osób z depresją i zespołem przewlekłego zmęczenia.
Body posture instability in patients with depression and chronic fatigue syndrome.
Autorzy:: Łopatka, Karolina
Opis:: Jednym ze wskaźników stabilnej postawy jest położenie środka nacisku stóp (COP) i zakres jego wychwiań. Uznając, że mniejsza amplituda i prędkość przemieszczania się COP są wyznacznikami stabilniejszej postawy. Zakłócenia kontroli stabilnej pozycji ciała mogą być uwarunkowane rożnymi czynnikami. Wśród nich wymieniany jest udział czynnika psychicznego. Celem wykonanych badań była analiza porównawcza wybranych zmiennych charakteryzujących stabilność posturalną osób zdrowych, z depresją i z zespołem przewlekłego zmęczenia (ZPZ). Założenia zrealizowano w oparciu o materiał kliniczny, który stanowiło 68 badanych: 23 pacjentów ze zdiagnozowaną depresją, 22 osoby z rozpoznanym zespołem przewlekłego zmęczenia i 23 osoby zdrowe. Do badań oceniających stabilność wykorzystano platformę posturograficzną.Przeprowadzona analiza wykazała różnice między grupą kontrolną, a z ZPZ w zakresie parametrów: Postural instability_path area (p=0,025) oraz Postural instability_L/A (p=0,007). Stwierdzono też istotną statystycznie różnicę zmiennych Lateral_width (p=0,019) oraz Postural instability_L/A (p=0,013) pomiędzy grupą z depresją, a ZPZ. Wyniki uzyskane między parametrami grupy kontrolnej i z depresją również są istotne: AP_width (p=0,012), AP_avarage deviation (p=0,05), Lateral_width (p=0,003), Lateral_avarage deviation (p=0,002), Postural instability_path area (p=0,002) oraz Postural instability_L/A (p=0,000).Osoby z depresją charakteryzują się większą oscylacją COP w porównaniu do grupy z ZPZ. Fakt ten wskazuje na najmniej stabilną postawę w tej grupie osób. Najmniejsze wartości poszczególnych parametrów, a zarazem największą stabilność uzyskała grupa osób zdrowych.
It is widely accepted, that the indicator of postural stability is the position of the center of pressure (COP) and the range of its sway. Acknowledging that the smaller amplitude and velocity of the COP, the better stable determinants of attitudes are. Control distractions of body posture may be a result of various factors. Among them psychological factors are mentioned.The aim of the research was the comparative analysis of selected variables characterizing postural stability of healthy people and patients with depression and chronic fatigue syndrome (CFS).The aim of the study was carried out on the basis of clinical material, which consisted of 68 examined: 23 patients with diagnosed depression, 22 people with diagnosed chronic fatigue syndrome and 23 healthy individuals. The study was conducted by using posturographic platform.The analysis has shown differences between the control group, and the CFS in the range of parameters: postural instability_path area (p=0.025) and Postural instability_L/A (p=0.007). There was also a statistically significant difference in Lateral_width variables (p=0.019) and Postural instability_L/A (p=0.013) between the group with depression and CFS. The results obtained between the parameters of the control group and that with depression, were also important: AP_width (p=0.012), AP_average deviation (p=0.05), Lateral_width (p=0.003), Lateral_average deviation (p=0.002), Postural instability_path area (p=0,002), and postural instability_L/A (p=0.000).The patients with depression are characterized by higher COP oscillation in comparison to the CFS group. This fact indicates the least stable posture among the depressive group. Healthy people obtained the lowest values of respective parameters, therefore their posture is the most stable.
Dostawca treści:: Repozytorium Uniwersytetu Jagiellońskiego

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Skocz do pozycji: 9.

Tytuł:: The effect of height and BMI on computer dynamic posturography parameters in women
Autorzy:: Olchowik, G.
Tomaszewski, M.
Olejarz, P.
Warchoł, J.
Różańska-Boczula, M.
Tematy:: kobieta
postura
wzrost
BMI
women
computerised dynamic
posturography
height; Pokaż więcej
Wydawca:: Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Powiązania:: https://bibliotekanauki.pl/articles/306636.pdf Link otwiera się w nowym oknie
Opis:: The human body’s posture control is a complex system of organs and mechanisms which controls the body’s centre of gravity (COG) over its base of support (BOS). Computerised Dynamic Posturography (CDP) allows for the quantitativeand objective assessment of the sensory and motor components of the body’s posture control system as well as of the integration and adaptation mechanisms in the central nervous system. The aim of this study was to assess the relationships between the body’s height and BMI on CDP results in a group of young healthy women without any clinical symptoms of balance disorders. It was found that the MS depended significantly on the height and BMI of the subjects as well as on the SOT conditions. As the height and BMI increased the MS value decreased. The postural response latency (LC) in the MCT statistically significantly depended only on height and showed a positive correlation. The postural response latency increased with height. The postural response amplitude for both right and left lower limbs significantly depended on height and BMI, but only for the backward movement of the platform. The response amplitude for all platform translations under all MCT conditions increased with height and BMI. The body’s resultant imbalance caused by the platform perturbations in the ADT were greater in shorter people and those with a lower BMI.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 10.

Tytuł:: The application of vestibular tests in the diagnosis of Meniere’s disease – interpretation of results and practical implications in clinical practice
Autorzy:: Jasińska-Nowacka, Agnieszka
Pipka, Mikołaj
Niemczyk, Kazimierz
Tematy:: ECochG
electrocochleography
Meniere’s disease
posturography
vertigo
vHIT
VNG; Pokaż więcej
Wydawca:: Index Copernicus International
Powiązania:: https://bibliotekanauki.pl/articles/58908266.pdf Link otwiera się w nowym oknie
Opis:: Introduction: Meniere’s disease is a condition characterized clinically by episodes of vertigo, hearing loss, tinnitus, and a sensation of fullness in the ear. The symptoms are caused by the endolymphatic hydrops. Despite numerous studies, the exact mechanism of its onset remains unknown. The current diagnostic criteria published by international societies are based on clinical symptoms. Due to the variable clinical presentation of the disease, there is a need to search for effective diagnostic tools. Material and methods: The article discusses various methods assessing inner ear function in the diagnosis of Meniere’s disease, including video Head Impulse Test, videonystagmography with caloric tests, vestibular evoked myogenic potentials, dynamic posturography, and electrocochleography. The results of aforementioned tests with patterns typical for Meniere’s disease are also presented. Conclusions: This article presents a comprehensive diagnostic review of Meniere’s disease using vestibular organ examination methods, emphasizing the importance of various research methods for an accurate understanding and diagnosis of this complex disease.
Dostawca treści:: Biblioteka Nauki

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