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    Wyświetlanie 1-14 z 14
    Tytuł:
    Badania doświadczalne chodu dzieci zdrowych
    Analysis of the healthy childrens gait
    Autorzy:
    Kania, E.
    Głowacka-Kwiecień, A.
    Jochymczyk, K.
    Jureczko, P.
    Powiązania:
    https://bibliotekanauki.pl/articles/99342.pdf
    Data publikacji:
    2008
    Wydawca:
    Politechnika Śląska. Katedra Biomechatroniki
    Tematy:
    chód
    analiza chodu
    pomiar ruchu
    biomechanika
    dzieci
    3D
    gait
    gait analysis
    motion capture
    biomechanics
    children
    Opis:
    Niniejszy artykuł zawiera opis zastosowanej metody analizy chodu dzieci zdrowych oraz przykład uzyskanych wyników dla jednego z nich. Celem pracy jest wyznaczenie wzorca chodu dzieci zdrowych, stanowiących grupę porównawczą dla wyników badania chodu dzieci z guzami mózgu. Badania realizowane są w Centrum Zdrowia Dziecka w Katowicach - Ligocie.
    The article present the methods which are use to analyze the gait of the children. Moreover, introduce the source of incorrect norm of healthy children gait parameters for different gait laboratory. It gives the base to further investigation as well.
    Źródło:
    Aktualne Problemy Biomechaniki; 2008, 2; 87-92
    1898-763X
    Pojawia się w:
    Aktualne Problemy Biomechaniki
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Temporal and spatial parameters of gait during pregnancy
    Autorzy:
    Bertuit, J.
    Feipel, V.
    Rooze, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/306208.pdf
    Data publikacji:
    2015
    Wydawca:
    Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
    Tematy:
    ciąża
    analiza lokomocji
    biomechanika
    pregnancy
    gait analysis
    GAITRite
    Opis:
    The objective of this study was to describe spatial and temporal parameters during gait in pregnant women, and to compare it with women in post-partum and with a control group. Methods: To investigate alteration in natural locomotion, we used an electronic walkway (GAITRite system). Fifty-eight pregnant women (four last months of pregnancy), nine post-partum women and twenty-three healthy nulligravidae women participated in this study. The women performed the motor task at three different speeds: preferred, fast and slow. Spatial and temporal parameters for pregnant and non-pregnant were compared. Results: In pregnant women, gait speed, step length and cadence were reduced. Consequently, cycle time was longer. The gait cycle was modified by an increase of stance phase and a decrease of swing phase. As a result, an increase of double support and a decrease of single support phases were observed. Step width increased by 15%. Conclusions: The pattern of gait displayed significant modifications during pregnancy as compared to nulliparous women. These changes favour a more stable and safe gait. After childbirth, women kept some characteristics of gait in pregnancy during 8 months.
    Źródło:
    Acta of Bioengineering and Biomechanics; 2015, 17, 2; 93-101
    1509-409X
    2450-6303
    Pojawia się w:
    Acta of Bioengineering and Biomechanics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Diopser – system do analizy chodu oparty na wideogrametrii
    Diopser – system for gait analysis based on videogrammetry
    Autorzy:
    Olszewski, P. K.
    Gajewski, R.
    Tarnawski, I. J.
    Pleciak, P.
    Powiązania:
    https://bibliotekanauki.pl/articles/412762.pdf
    Data publikacji:
    2016
    Wydawca:
    Sieć Badawcza Łukasiewicz - Instytut Przemysłu Skórzanego
    Tematy:
    biomechanika
    analiza chodu
    wideogrametria
    biomechanics
    gait analysis
    videogrammetry
    Opis:
    Badania biomechaniki chodu są cennym narzędziem przy projektowaniu i testowaniu obuwia oraz zaopatrzenia ortopedycznego. Zbudowany w IPS Oddział Kraków system do analizy chodu pozwala na wideogrametryczne określenie ruchu kończyn i ciała człowieka w trójwymiarowej przestrzeni. W skład systemu wchodzi bieżnia, układ dwóch kamer w ustalonej odległości, zestaw pasywnych markerów oraz laptop z opracowanym w Instytucie programem Diopser. Program pozwala na wyznaczanie parametrów geometrycznych pomiędzy zdefiniowanymi przez użytkownika punktami. Możliwe jest śledzenie do 20 markerów umieszczonych na osobie lub przedmiocie oraz obliczanie długości i kątów dowolnych układów geometrycznych. Danymi wejściowymi jest zestaw dwóch zsynchronizowanych czasowo nagrań, rezultatem działania programu jest plik arkusza kalkulacyjnego zawierający wybrane miary. Istotnymi czynnikami wpływającymi na poprawność wyznaczenia położeń markerów są rozdzielczość i prędkość nagrania, barwa markerów oraz oświetlenie obiektu. Artykuł prezentuje możliwości systemu Diopser, sposób przeprowadzania pomiarów, interpretację wyników uzyskanych dla testowych nagrań oraz wskazuje obszary potencjalnych zastosowań.
    The study of biomechanics of gait is a valuable tool for designing and testing of footwear and orthopedic devices. Built in IPS Krakow Branch system for gait analysis allows to determine via videogrammetry the movements of the limbs and the human body in three-dimensional space. The system includes treadmill, a set of two cameras at a predetermined distance, a set of passive markers and a laptop with Diopser program developed in the Institute. The program allows the determination of geometrical parameters between user-defined points. It is possible to track up to 20 markers placed on a person or object and calculate the length and angles of any geometries. The input is a set of two time-synchronized recordings, the output of the program is a spreadsheet file containing the selected measurements. Important factors that affect the correct designation of markers’ positions are resolution and recording, markers’ color and object’s illumination. The paper presents the capabilities of Diopser system, the way the measurements are made, interpretation of results obtained for test recordings and identifies areas of potential applications of the system.
    Źródło:
    Technologia i Jakość Wyrobów; 2016, 61; 37-46
    2299-7989
    Pojawia się w:
    Technologia i Jakość Wyrobów
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Medial longitudinal arch biomechanics evaluation during gait in subjects with flexible flatfoot
    Autorzy:
    Prachgosin, T.
    Chong, D. Y. R.
    Leelasamran, W.
    Smithmaitrie, P.
    Chatpun, S.
    Powiązania:
    https://bibliotekanauki.pl/articles/307263.pdf
    Data publikacji:
    2015
    Wydawca:
    Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
    Tematy:
    biomechanika
    chód
    płaskostopie
    biomechanics
    gait
    medial longitudinal arch
    flat foot
    Opis:
    Purpose: Medial longitudinal arch (MLA) strengthening has been considered an important part of successful flatfoot treatment. But, to date, the biomechanical loading behavior of the medial arch in flatfoot has not been evaluated. This study aimed to evaluate the MLA moment, MLA deformation angle, foot kinematics and ground reaction forces (GRF) in both normal foot and flatfoot groups. Methods: Each participant’s foot was classified according to arch type using foot prints and radiographs. Twenty-eight non-obese adults (13 flatfeet and 15 normal feet) were involved. The biomechanics data were collected in a 3D motion analysis laboratory. The MLA biomechanics were calculated. Hindfoot and forefoot kinematics were also analyzed. Results: The flatfoot group had a significantly greater peak eversion MLA moment ( p = 0.005) and a smaller peak MLA deformation angle ( p < 0.05) during specific subphases. The peak of hindfoot plantarflexion ( p < 0.05) and internal rotation ( p < 0.05) and the peak of forefoot abduction ( p < 0.05) in the specific subphases were greater in the flatfoot group. The flatfoot group also had significantly smaller peak vertical GRF ( p < 0.05) during late stance and larger peak medial GRF ( p < 0.05) during mid stance. Conclusions: This study found a significantly greater eversion deforming force acting at the MLA structure, greater hindfoot and forefoot motion, less MLA flexibility and abnormal GRF in a flatfoot group during walking, which reflected the deficit of foot function in a flatfoot group.
    Źródło:
    Acta of Bioengineering and Biomechanics; 2015, 17, 4; 121-130
    1509-409X
    2450-6303
    Pojawia się w:
    Acta of Bioengineering and Biomechanics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Influence of Footwear and Equipment on Stride Length and Range of Motion of Ankle, Knee and Hip Joint
    Autorzy:
    Schulze, Ch.
    Lindner, T.
    Woitge, S.
    Schulz, K.
    Finze, S.
    Mittelmeier, W.
    Bader, R.
    Powiązania:
    https://bibliotekanauki.pl/articles/306456.pdf
    Data publikacji:
    2014
    Wydawca:
    Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
    Tematy:
    analiza chodu
    sprzęt wojskowy
    biomechanika
    gait analysis
    goniometry
    military equipment
    oversue syndromes
    Opis:
    Purpose: Footwear and equipment worn by military personnel is of importance for them to be able to meet the physical demands specific to their profession daily activities. Aim of the present study was to investigate by means of gait analysis how army-provided footwear and equipment influence the range of motion of hip, knee and ankle joints as well as stride length.Methods: Thirty-two soldiers were subjected to gait analysis on a treadmill by way of video recordings and goniometric measurements. Results: The stride length increased when military shoes are worn. We found no influence on stride length in connection to increased loading. The weight of the shoes represents the decisive factor. Neither shoes nor equipment changed the range of motion of the knee joint.Weight of equipment affected range of motion of the hip joint. The range of motion of the upper and lower ankle joints was mainly influenced by the properties of the shoes. Conclusions: Military footwear and weight of equipment influence stride length and range of motion of joints of the lower extremities in a specific way. Shape of material is the decisive factor.
    Źródło:
    Acta of Bioengineering and Biomechanics; 2014, 16, 4; 45-51
    1509-409X
    2450-6303
    Pojawia się w:
    Acta of Bioengineering and Biomechanics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Wpływ buta typu Walker z zegarem na zmianę parametrów kinematycznych w stawach kończyn dolnych w chodzie
    The influence of rom walker on lower limb kinematics during gait
    Autorzy:
    Lann vel Lace, Karol
    Błażkiewicz, MIchalina
    Powiązania:
    https://bibliotekanauki.pl/articles/2201484.pdf
    Data publikacji:
    2019
    Wydawca:
    Politechnika Śląska. Katedra Biomechatroniki
    Tematy:
    orteza
    analiza chodu
    parametry kinematyczne
    biomechanika
    orthosis
    gait analysis
    kinematic parameters
    biomechanics
    Opis:
    Celem pracy jest określenie wpływu różnych ustawień ortezy typu Walker na zmianę kątów w stawach kończyn dolnych podczas chodu. W badaniach wzięło udział 10 zdrowych osób. Do badań czterech rodzajów chodu -jeden bez ortezy i trzy w różnych ustawieniach ortezy wykorzystano system Vicon. Udowodniono, że sposób ustawienia ortezy ma istotny wpływ na zmianę kątów w stawie kolanowym i biodrowym kończyny dolnej, na której jest noszona orteza. Bardzo korzystny jest brak wpływu ortezy na kinematykę kończyny wolnej od ortezy.
    The aim of the work is to determine the effect of various settings of Walker type orthosis on lower limb kinematics parameters during walking. 10 healthy people participated in the study. The Vicon system was used to test four types of the gait - one without an orthosis and three in different orthosis settings. It has been proven that the way the orthosis is positioned has a significant impact on changing the angles in the knee and hip joints of the lower limb, on which the orthosis is worn. The absence of the orthotic effect on the kinematics of the limb free from orthosis is very beneficial.
    Źródło:
    Aktualne Problemy Biomechaniki; 2019, 17; 35--42
    1898-763X
    Pojawia się w:
    Aktualne Problemy Biomechaniki
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Three-dimensional kinematic adaptations of gait throughout pregnancy and post-partum
    Autorzy:
    Branco, M. A. C.
    Santos-Rocha, R.
    Vieira, F.
    Aguiar, R.
    Veloso, A. P.
    Powiązania:
    https://bibliotekanauki.pl/articles/307113.pdf
    Data publikacji:
    2016
    Wydawca:
    Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
    Tematy:
    ciąża
    biomechanika
    kinematyka
    własności temporalne
    chód
    pregnancy
    biomechanics
    joint kinematics
    temporal parameters
    gait
    Opis:
    Purpose: The kinematic analysis of gait during pregnancy provides more information about the anatomical changes and contributes to exercise and rehabilitation prescription. The purposes were to describe and quantify the spatial, temporal and kinematic parameters in the joints of the lower limb during gait at the end of the first, second and third trimesters of pregnancy and in the postpartum period. Methods: A three-dimensional analysis was performed in eleven pregnant women. Repeated measures ANOVA was performed for comparisons between periods. Results: The longitudinal effect of pregnancy was not observed in spatial and temporal parameters. In joint kinematics the effect of pregnancy was observed in all joints for the three planes of motion. The hip joint and pelvis are the structures with more changes, and the results point to an increase in the anterior tilt of the pelvis as the pregnancy progresses, as well as a decrease of the amplitudes of the hip joint. The results suggested that pregnant women need to maintain the stability of the body, and become more efficient in locomotion. Conclusions: In general, the results retrieve the values from the beginning of pregnancy, indicating that the body was self-organized in order to overcome the morphological and physiological changes which women suffer during pregnancy, indicating that they have the ability to adapt depending on the demands, and after the effect of pregnancy is over, they return to values similar to those found in early pregnancy
    Źródło:
    Acta of Bioengineering and Biomechanics; 2016, 18, 2; 153-162
    1509-409X
    2450-6303
    Pojawia się w:
    Acta of Bioengineering and Biomechanics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Dissipation of disturbances seen in the knee joint kinematics of children with cerebral palsy
    Autorzy:
    Kurz, M. J.
    Arpin, D. J.
    Davies, D. L.
    Gehringer, J. E.
    Powiązania:
    https://bibliotekanauki.pl/articles/307516.pdf
    Data publikacji:
    2015
    Wydawca:
    Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
    Tematy:
    chód
    zmienność
    biomechanika
    układ mięśniowo-szkieletowy
    walking
    gait
    crouch
    variability
    biomechanics
    musculoskeletal model
    Opis:
    Purpose: Children with cerebral palsy (CP) often use a crouch gait pattern that has disturbances in the knee joint kinematics. Although the length and rate of lengthening of the hamstring musculature have been speculated to be the reason that these disturbances are not adequately dissipated, this relationship has not been adequately explored. The purpose of this exploratory investigation was to use simulations of a musculoskeletal model and Floquet analysis to evaluate how the performance of hamstrings musculature during gait may be related to the knee joint instabilities seen in children with CP. Methods: Children with CP and typically developing (TD) children walked on a treadmill as a motion capture system assessed the knee joint kinematics. Floquet analysis was used to quantify the rate that disturbances present at the knee joint were dissipated, and simulations of a musculoskeletal model were used to estimate the in vivo length and velocity of the hamstrings. Pearson correlation coefficients were calculated to determine if there was a relationship between the rate that the disturbances were dissipated and the performance of the hamstring musculature. Results: The children with CP had hamstrings that lengthened more slowly than TD children, and required more strides to dissipate disturbances in the knee joint kinematics. There was negative correlation between the rate that the hamstrings lengthened and the rate that the knee joint disturbances were dissipated. Conclusions: Our results suggest that the ability of children with CP to dissipate the knee joint disturbances may be related to the inability to properly control the hamstring musculature.
    Źródło:
    Acta of Bioengineering and Biomechanics; 2015, 17, 4; 67-72
    1509-409X
    2450-6303
    Pojawia się w:
    Acta of Bioengineering and Biomechanics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Ocena wpływu nieprawidłowego rozmieszczenia znaczników ruchu na wyniki pomiarów wielkości kinematycznych w systemie APAS
    Estimation of influence of incorrect marker location on results of kinematic quantities measurements carried out in the APAS system
    Autorzy:
    Michnik, R.
    Jurkojć, J.
    Sacha, E.
    Powiązania:
    https://bibliotekanauki.pl/articles/99079.pdf
    Data publikacji:
    2008
    Wydawca:
    Politechnika Śląska. Katedra Biomechatroniki
    Tematy:
    biomechanika
    analiza ruchu
    pomiar ruchu
    system APAS
    biomechanics
    gait analysis
    motion capture
    APAS system
    Opis:
    W ramach pracy przedstawiono wyniki badań pozwalających na ocenę wpływu nieprawidłowego rozmieszczenia znaczników ruchu na wyniki pomiarów wielkości kinematycznych w systemie APAS. Analizę ruchu przeprowadzono umieszczając na ciele badanej osoby 15 markerów zgodnie z modelem Vaughan’a oraz dwa dodatkowe markery w pobliżu stawu kolanowego oraz stawu skokowego przesunięte do przodu o 3 cm w płaszczyźnie strzałkowej w stosunku do prawidłowo naklejonych markerów. Otrzymane wyniki pomiarów zarejestrowane dla chodu z prawidłowo i nieprawidłowo rozmieszczonymi markerami porównano ze sobą.
    Results of research enabling assessment of influence of incorrect marker location on results of kinematic quantities measurements, carried out by APAS system, are presented in the paper. Motion analysis was conducted with the use of 15 markers placed on the body in accordance with Vaughan model. Additionally two another markers were situated 3 cm forward in saggital plane (with respect to correctly situated markers) on the knee and ankle joints. For all obtained results the comparative analysis was carried out.
    Źródło:
    Aktualne Problemy Biomechaniki; 2008, 2; 105-110
    1898-763X
    Pojawia się w:
    Aktualne Problemy Biomechaniki
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Analysis of foot load during ballet dancers’ gait
    Autorzy:
    Prochazkova, M.
    Tepla, L.
    Svoboda, Z.
    Janura, M.
    Cieslarová, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/306311.pdf
    Data publikacji:
    2014
    Wydawca:
    Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
    Tematy:
    walking
    biomechanics
    gait analysis
    plantar pressure
    forefoot
    rearfoot
    biomechanika
    chód
    analiza chodu
    ciśnienie podeszwowe
    Opis:
    Ballet is an art that puts extreme demands on the dancer’s musculoskeletal system and therefore significantly affects motor behavior of the dancers. The aim of our research was to compare plantar pressure distribution during stance phase of gait between a group of professional ballet dancers and non-dancers. Thirteen professional dancers (5 men, 8 women; mean age of 24.1 ± 3.8 years) and 13 nondancers (5 men, 8 women; mean age of 26.1 ± 5.3 years) participated in this study. Foot pressure analysis during gait was collected using a 2 m pressure plate. The participants were instructed to walk across the platform at a self-selected pace barefoot. Three gait cycles were necessary for the data analysis. The results revealed higher ( p < 0.05) pressure peaks in medial edge of forefoot during gait for dancers in comparison with nondancers. Furthermore, differences in total foot loading and foot loading duration of rearfoot was higher ( p < 0.05) in dancers as well. We can attribute these differences to long-term and intensive dancing exercises that can change the dancer’s gait stereotype.
    Źródło:
    Acta of Bioengineering and Biomechanics; 2014, 16, 2; 41-45
    1509-409X
    2450-6303
    Pojawia się w:
    Acta of Bioengineering and Biomechanics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Dynamic parameters of three-point crutch gait in female patients after total hip arthroplasty
    Autorzy:
    Murawa, M.
    Dworak, L. B.
    Kabaciński, J.
    Syczewska, M.
    Rzepnicka, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/951831.pdf
    Data publikacji:
    2016
    Wydawca:
    Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
    Tematy:
    staw biodrowy
    endoproteza
    biomechanika
    total hip arthroplasty
    three-point crutch gait
    partial weight bearing
    biomechanics
    Opis:
    Purpose: Patient recovery after a surgical procedure depends, among other factors, on the amount of the body weight with which patient loads lower limb. Research studies report different results of the degree of body weight with which lower limb is loaded during three-point crutch gait. The aim of this study was to evaluate the level of the ground reaction forces (GRF) during crutch gait used by patients after total hip arthroplasty (THA) in the first week after discharge from the orthopaedic units. Methods: Ten female patients diagnosed with primary unilateral coxarthrosis participated in a single measurement session. In order to record kinematic and dynamic variables of this gait pattern motion analysis system was used together with two force plates. The static test of body weight distribution between lower limbs was performed on a dual-top stabilometric plate. Results: The average peak values of loading on the operated (O) limb during mid stance and terminal stance of three-point crutch gait were 64.6% and 64.3% of body weight (BW), respectively, whereas in the case of the nonoperated (NO) limb 103.5%BW and 108.8%BW, respectively. The maximum loads on the crutches were significantly higher (by 9%BW) on the NO side as compared to the O side ( p < 0.05). During the static test, average values of body weight distribution on the O and NO limb were 36%BW and 64%BW, respectively. Conclusions: The patients showed surprisingly similar level of loading on the O limb. The weight bearing on the O limb was lower during static trial than during three-point crutch gait.
    Źródło:
    Acta of Bioengineering and Biomechanics; 2016, 18, 2; 131-135
    1509-409X
    2450-6303
    Pojawia się w:
    Acta of Bioengineering and Biomechanics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Mechatronic device for locomotor training
    Autorzy:
    Duda, S.
    Gąsiorek, D.
    Gembalczyk, G.
    Kciuk, S.
    Mężyk, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/386814.pdf
    Data publikacji:
    2016
    Wydawca:
    Politechnika Białostocka. Oficyna Wydawnicza Politechniki Białostockiej
    Tematy:
    mechatronic device
    gait reeducation
    rehabilitation
    real-time systems
    control systems
    mechatronika
    system sterowania
    systemy czasu rzeczywistego
    chód człowieka
    biomechanika
    Opis:
    This paper presents a novel mechatronic device to support a gait reeducation process. The conceptual works were done by the interdisciplinary design team. This collaboration allowed to perform a device that would connect the current findings in the fields of biomechanics and mechatronics. In the first part of the article shown a construction of the device which is based on the structure of an overhead travelling crane. The rest of the article contains the issues related to machine control system. In the prototype, the control of drive system is conducted by means of two RT-DAC4/PCI real time cards connected with a signal conditioning interface. Authors present the developed control algorithms and optimization process of the controller settings values. The summary contains a comparison of some numerical simulation results and experimental data from the sensors mounted on the device. The measurement data were obtained during the gait of a healthy person.
    Źródło:
    Acta Mechanica et Automatica; 2016, 10, 4; 310-315
    1898-4088
    2300-5319
    Pojawia się w:
    Acta Mechanica et Automatica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Muscle torque production and kinematic properties in post-stroke patients: a pilot cross-sectional study
    Autorzy:
    Kowal, Mateusz
    Kołcz, Anna
    Dymarek, Robert
    Paprocka-Borowicz, Małgorzata
    Gnus, Jan
    Powiązania:
    https://bibliotekanauki.pl/articles/306470.pdf
    Data publikacji:
    2020
    Wydawca:
    Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
    Tematy:
    biomechanika
    parametry chodu
    neurorehabilitacja
    udar mózgu
    moment obrotowy
    biomechanics
    gait parameters
    isokinetic assessment
    neurorehabilitation
    post-stroke hemiplegia
    torque production
    Opis:
    Stroke-related hemiplegia is an important factor influencing parameters of gait. So far, limited papers have assessed temporo-spatial capabilities and their correlations with gait parameters in the early post-stroke stage. This pilot study evaluated the temporospatial parameters of gait and assessed the maximal isometric and isokinetic torque production of the plantar flexor and dorsiflexor muscles. Methods: 15 patients with lower limb spasticity and 15 healthy controls were included. Stroke severity was assessed using the Modified Ashworth Scale and the Barthel Index. Gait cadence, gait speed, and gait cycle were assessed using inertial sensors during a Timed Up and Go test. Maximal isometric and isokinetic torque production of the ankle plantar flexor and dorsiflexor muscles were assessed using an isokinetic dynamometer device. Results: Post-stroke patients had statistically significantly lower gait cadence than healthy participants (17%, p < 0.05). Statistically significantly lower values of vertical acceleration were also noted during a sit-to-stand movement task (42%, p < 0.05). Plantar flexion torque of the affected limb was significantly different during isometric (63%, p ≤ 0.01) and isokinetic work for 30o /s (49%, p = 0.04), 60o /s (58%, p = 0.01) and 20 °/s (53%, p = 0.01). Dorsiflexor muscles’ torque production was significantly different in isometric activity (38%, p = 0.04). A statistically significant positive correlation occurred between the absolute peak torque of the dorsiflexor muscles in both static and speed phases of gait (Rs = 0.65, p = 0.04). Conclusions: Despite the low intensity of spasticity and early phase after stroke, differences in the muscle torque production and temporo-spatial parameters, as well as the correlations between them, were noticeable.
    Źródło:
    Acta of Bioengineering and Biomechanics; 2020, 22, 1; 11-20
    1509-409X
    2450-6303
    Pojawia się w:
    Acta of Bioengineering and Biomechanics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Metody trójwymiarowej analizy ruchu człowieka
    The methods of three dimensional human motion analysis
    Autorzy:
    Sacha, E.
    Powiązania:
    https://bibliotekanauki.pl/articles/99214.pdf
    Data publikacji:
    2008
    Wydawca:
    Politechnika Śląska. Katedra Biomechatroniki
    Tematy:
    biomechanika
    analiza chodu
    pomiar ruchu
    system IDEEA
    system Aurora
    system Moven
    system CMS-HS
    rezonans magnetyczny
    3D
    biomechanics
    gait analysis
    motion capture
    IDEEA system
    Aurora system
    Moven system
    CMS-HS system
    magnetic resonance
    Opis:
    W artykule przedstawione zostały główne techniki pomiarowe, stosowane w trójwymiarowej analizie ruchu człowieka, jako alternatywa dla systemów optoelektronicznych. Artykuł ma charakter poglądowy, przedstawia ogólną charakterystykę i zasadę działania metod badawczych.
    This paper is a general demonstration of the newest, non-optical method, used in 3D motion analysis. It contains a few main measuring techniques, like electromagnetic tracking system, accelerometer system, ultrasound method and the other, which are the alternatives for video-based optical method of human motion analysis. There is also a notice about using the Magnetic Resonance Imaging for kinematic analysis in the future.
    Źródło:
    Aktualne Problemy Biomechaniki; 2008, 2; 141-146
    1898-763X
    Pojawia się w:
    Aktualne Problemy Biomechaniki
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
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