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    Wyświetlanie 1-4 z 4
    Tytuł:
    Analiza biomechaniczna chodu prawidłowego
    A biomechanical analysis of the correct gait
    Autorzy:
    Głowiński, S.
    Powiązania:
    https://bibliotekanauki.pl/articles/254282.pdf
    Data publikacji:
    2013
    Wydawca:
    Instytut Naukowo-Wydawniczy TTS
    Tematy:
    chód człowieka
    chód prawidłowy
    dynamika chodu
    kinematyka chodu
    human gait
    correct gait
    gait dynamics
    gait kinematics
    Opis:
    Artykuł wprowadza w problematykę badania chodu prawidłowego. Opracowano model kończyn dolnych o 14 stopniach swobody (po 7 stopni na każdą kończynę) z zaimplementowanymi parametrami antropometrycznymi. Przeprowadzono symulację chodu i przedstawiono analizę wielkości kinematycznych takich jak przebiegi czasowe kątów w poszczególnych stawach. Określono wielkości dynamiczne takie jak siły występujące w wybranych mięśniach poszczególnych stawów oraz zmianę długości mięśni w funkcji zmiany kąta podczas chodu prawidłowego.
    In this paper the results of the research based on simulation of human gait were presented. The model of the lower limbs of 14 degrees of freedom was described. The simulation of gait was done and selected biomechanical parameters with description were presented. The dynamic forces in selected muscles at each joint and the muscle length changes as a function of an angle were specified.
    Źródło:
    TTS Technika Transportu Szynowego; 2013, 10; 847-853, CD
    1232-3829
    2543-5728
    Pojawia się w:
    TTS Technika Transportu Szynowego
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    A biomechanical assessment of running with hallux unstable shoes of different material stiffness
    Autorzy:
    Mei, Qichang
    Gu, Yaodong
    Fernandes, Justin
    Powiązania:
    https://bibliotekanauki.pl/articles/306788.pdf
    Data publikacji:
    2019
    Wydawca:
    Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
    Tematy:
    buty
    obuwie
    śródstopie
    kinematyka chodu
    regional unstable shoes
    toes gripping function
    kinematics
    metatarsal loading
    Opis:
    Functional footwear with different unstable profiles has been widely used to mimic barefoot condition and offload plantar loading for pathological or injury prevention. However, little research investigates the effect of unstable structure on particular foot functions. In this study, a prototype of unstable shoe design with unstable element of different stiffness placed at the hallux (a regionalized rocker) was used. The primary objective was to analyse the biomechanical performance of running with hallux unstable shoes, aiming to potentially stimulate and increase the toe gripping function. Methods: The lower limb kinematics and plantar pressure distribution were measured to comparatively analyse the soft (SS) and hard (SH) unstable shoes with flat control shoes (CS). Results: The SS showed increased big toe and reduced forefoot plantar pressure. The SS led to similar lower limb kinematics to baseline CS except for reduced hip abduction, increased rotation range of motion (ROM), increased peak ankle plantar flexion and ROM. The SH presented significantly altered lower limb kinematics across hip, knee and ankle, and laterally distributed plantar pressure. Conclusions: Unstable shoes with soft material led to reduced medial metatarsal loading by increasing the support area and modified joint kinematics minimally. Unstable shoes with stiffer material presented compensatory kinematic movements across all joints and laterally shifted plantar loading distribution. These findings may provide implications on toe grip function training for foot pressure off-loading.
    Źródło:
    Acta of Bioengineering and Biomechanics; 2019, 21, 1; 121-128
    1509-409X
    2450-6303
    Pojawia się w:
    Acta of Bioengineering and Biomechanics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Reference values of spatiotemporal parameters, joint angles, ground reaction forces, and plantar pressure distribution during normal gait in young women
    Autorzy:
    Fryzowicz, A.
    Murawa, M.
    Kabaciński, J.
    Rzepnicka, A.
    Dworak, L. B.
    Powiązania:
    https://bibliotekanauki.pl/articles/307416.pdf
    Data publikacji:
    2018
    Wydawca:
    Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
    Tematy:
    kobieta
    kinematyka
    biomechanika chodu
    pedobarografia
    women
    kinematics
    ground reaction forces
    gait biomechanics
    pedobarography
    reference data
    Opis:
    The aim of this study was to establish the reference values of spatiotemporal parameters, joint angles, ground reaction forces and plantar pressure distribution collected simultaneously on the same measurement path during normal gait in a homogenous group of young, healthy women. Methods: The studied group consisted of 28 healthy women aged 21 years on average. The motion capture system BTS Smart-D, 2 AMTI force platforms and Footscan pedobarographic platform were used in this research. The 14-metre measurement path and the 6-metre distance that examined women had to walk through before entering the measurement area ensured that a natural gait pattern was recorded. Statistical analysis was performed to evaluate differences between right and left lower extremities. Results: The applied method enabled collecting several parameters regarding normal female gait biomechanics such as: spatiotemporal parameters, angle-time characteristics as well as range of motion of pelvis, hip, knee and ankle joints in gait cycle, force-time characteristics and peaks of ground reaction force components in stance phase, peak pressure and time of loading of defined foot regions in stance phase. Conclusions: The results may be used by clinicians, physiotherapists or researchers as a reference in diagnosing gait disorders or evaluating patient’s walking pattern. In recent literature there are some disparities in gait parameters reference values even regarding similar research groups. These differences may arise from distinct method, slower or faster gait, other laboratory environment etc. This should be considered and more than one source of normative values should be checked when searching for reference data.
    Źródło:
    Acta of Bioengineering and Biomechanics; 2018, 20, 1; 49-57
    1509-409X
    2450-6303
    Pojawia się w:
    Acta of Bioengineering and Biomechanics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    3D kinematic analysis of patients’ gait before and after unilateral total hip replacement
    Autorzy:
    Kolářová, Kateřina
    Vodička, Tomáš
    Bozděch, Michal
    Repko, Martin
    Powiązania:
    https://bibliotekanauki.pl/articles/27324147.pdf
    Data publikacji:
    2020
    Wydawca:
    Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
    Tematy:
    hip joint
    arthrosis
    THR
    3D kinematics
    gait analysis
    staw biodrowy
    artroza
    kinematyka 3D
    analiza chodu
    Opis:
    Purpose: The purpose of the study was to describe changes in the kinematic parameters in the patients’ gait after total hip replacement. Methods: Research group of men in the end stage of osteoarthritis indicated to the THR (n = 10; age 54.1 ± 7.5 years; weight 92.2 ± 9.6 kg; height 179.7 ± 5.9 cm). All participants underwent a total of three measurements: before surgery, 3 and 6 months after the surgery. Using the 3D kinematic analysis system, the patients’ gait was recorded during each measurement session and kinematic analysis was carried out. The parameters that were monitored included the sagittal range of motion while walking in the ankle, the knee and the hip joints of the operated and the unoperated limb, and the range in the hip joint’s frontal plane, the rotation of pelvis in the frontal and transverse planes, as well as the speed of walking and the walking step length. Results: Significant increases were found in sagittal range of motion in the operated hip joint, sagittal range of motion in the ankle joint on the unoperated side and in the walking step length of the unoperated limb. Conclusions: During walking after a THR, the sagittal range of motion in the ankle of the unoperated limb increases. Also, the range of motion in the sagittal plane on the operated joint increases, which is related to the lengthening of the step of the unoperated lower limb.
    Źródło:
    Acta of Bioengineering and Biomechanics; 2020, 22, 2; 165--171
    1509-409X
    2450-6303
    Pojawia się w:
    Acta of Bioengineering and Biomechanics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-4 z 4

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