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    Wyświetlanie 1-5 z 5
    Tytuł:
    The relationship between body composition and foot posture index in Special Olympics athletes
    Autorzy:
    Gimunová, Marta
    Válková, Hana
    Kalina, Tomáš
    Vodička, Tomáš
    Powiązania:
    https://bibliotekanauki.pl/articles/306870.pdf
    Data publikacji:
    2019
    Wydawca:
    Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
    Tematy:
    niepełnosprawność intelektualna
    kompozycja ciała
    sport
    foot posture index
    intellectual disability
    body composition
    gait speed
    Opis:
    In Special Olympics, athletes’ foot deformities, abnormal postural patterns and overweight and obesity were observed to be more common than in the general population. Therefore, the purpose of this study was to analyze the relationship between body composition and foot posture index. Additionally, the effect of gender and other factors on the body composition and foot posture index in athletes with intellectual disability (ID) were analyzed. Methods: 131 athletes with ID participated in this study: 36 table tennis players, 66 cross country skiers and 29 downhill skiers. Their body composition was assessed using the bioimpedance analysis InBody 230 (Biospace, Korea). The foot screening included the assessment of foot posture index, which evaluates the degree of pronated, supinated and neutral position of the foot, gait speed and the last part of the procedure consisted of a short questionnaire, providing the information about the type of housing, age, and the usage of orthotics. Results: A low correlation between body composition and some of the foot posture index criteria was observed. The mean foot posture index score in athletes with ID was observed to be slightly pronated, as also described in the general population, with no statistically significant difference between female and male athletes. The gender differences were observed only in body composition. Conclusions: The high body weight and body fat percentage observed in this study highlight the need for healthy lifestyle education in athletes with ID.
    Źródło:
    Acta of Bioengineering and Biomechanics; 2019, 21, 4; 47-52
    1509-409X
    2450-6303
    Pojawia się w:
    Acta of Bioengineering and Biomechanics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The effects of gait speed on plantar pressure variables in individuals with normal foot posture and flatfoot
    Autorzy:
    Kirmizi, Muge
    Sengul, Yesim S.
    Angin, Salih
    Powiązania:
    https://bibliotekanauki.pl/articles/27324125.pdf
    Data publikacji:
    2020
    Wydawca:
    Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
    Tematy:
    gait analysis
    gait speed
    pes planus
    foot posture
    plantar pressure analysis
    analiza chodu
    prędkość chodu
    pes płaski
    postawa stóp
    analiza ciśnienia podeszwowego
    Opis:
    Purpose: It is not known how gait speed affects plantar pressure characteristics in flatfoot. The aim of this work was to investigate the effects of gait speed on plantar pressure variables in flatfoot by comparing it to normal foot posture. Methods: Thirty individuals with flatfoot and 30 individuals with normal foot posture were recruited. Plantar pressure variables were obtained by a pressure-sensitive mat at self-selected slow, normal, and fast speeds. All assessments were performed on the dominant foot, and three satisfactory steps were obtained for each gait speed condition. The order of gait speeds was randomized. Results: In the flatfoot group, the contact area was higher in the midfoot, third metatarsal, and hallux at all speeds, also in the second metatarsal at slow and normal speeds than the normal foot posture group ( p < 0.05). The maximum force was higher in the midfoot and hallux at all speeds in the flatfoot group ( p < 0.05). Also, the maximum force was lower in the first metatarsal at normal and fast speeds, and in the lateral heel at fast speed ( p < 0.05). In the flatfoot group, the peak pressure was found to be higher in the hallux at slow speed, but to be lower in the first metatarsal at fast speed ( p < 0.05). Further, plantar pressure distribution was affected by gait speed in both feet. Conclusions: Analysis of plantar pressure variables should be performed at different gait speeds.
    Źródło:
    Acta of Bioengineering and Biomechanics; 2020, 22, 3; 161--168
    1509-409X
    2450-6303
    Pojawia się w:
    Acta of Bioengineering and Biomechanics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Effects of Breast Support and Gait Speed on Three-Dimensional Breast Displacement for Women with Small Breasts
    Wpływ wsparcia piersi i szybkości chodu na trójwymiarowe przemieszczenie piersi u kobiet z małymi piersiami
    Autorzy:
    Chen, Xiaona
    Sun, Guangwu
    Wang, Jianping
    Li, Yanmei
    Xie, Hong
    Powiązania:
    https://bibliotekanauki.pl/articles/1419738.pdf
    Data publikacji:
    2021
    Wydawca:
    Sieć Badawcza Łukasiewicz - Instytut Biopolimerów i Włókien Chemicznych
    Tematy:
    breast
    multiplanar breast displacement
    breast suport condition
    gait speed
    breast movement
    piersi
    wielopłaszczyznowe przemieszczenie piersi
    stan podparcia piersi
    prędkość chodu
    ruch piersi
    Opis:
    This paper investigated three-dimensional breast displacement under different breast suport conditions and gait speeds for women with small breasts. The breast coordinates of fifteen female participants with small breasts (sizes ranging from A to C) were recorded during treadmill walking and running tests under two different sports bra conditions and a no bra condition. The results showed that although vertical breast displacement was always the greatest in each condition, mediolateral breast displacement was significantly greater than anteroposterior breast displacement. Mediolateral breast displacement was not effectively reduced in the two sports bra conditions compared to the no bra condition. It is recommended that sports bra designed for women with small breasts should aim to limit mediolateral breast displacement instead of anteroposterior breast displacement, on the premise of controlling vertical breast displacement. The findings also suggest that the effectiveness of sports bras at reducing side-to-side breast movement requires further optimisation.
    W pracy zbadano trójwymiarowe przemieszczenie piersi przy różnych warunkach podtrzymywania piersi i szybkości chodu u kobiet z małymi piersiami. Współrzędne piersi piętnastu uczestniczek z małymi piersiami (rozmiary od A do C) rejestrowano podczas testów chodu na bieżni i biegania w stanikach sportowych i bez. Wyniki pokazały, że chociaż pionowe przemieszczenie piersi było zawsze największe w każdym stanie, środkowo-boczne przemieszczenie piersi było znacznie większe, niż przemieszczenie piersi przednio-tylne. Stwierdzono, że biustonosz sportowy nie zmniejszył skutecznie przemieszczenia biustu w bok w porównaniu ze stanem bez stanika. Zaleca się, aby stanik sportowy przeznaczony dla kobiet z małym biustem miał na celu ograniczenie środkowo-bocznego przemieszczenia piersi zamiast przesunięcia piersi w przód i tył, z założeniem kontrolowania pionowego przemieszczenia piersi. Odkrycia sugerują również, że skuteczność staników sportowych w ograniczaniu ruchów piersi na boki wymaga dalszej optymalizacji.
    Źródło:
    Fibres & Textiles in Eastern Europe; 2021, 2 (146); 87-94
    1230-3666
    2300-7354
    Pojawia się w:
    Fibres & Textiles in Eastern Europe
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Assessment of gait stability and preferred walking speed in virtual reality
    Autorzy:
    Wodarski, Piotr
    Jurkojć, Jacek
    Polechoński, Jacek
    Bieniek, Andrzej
    Chrzan, Miłosz
    Michnik, Robert
    Gzik, Marek
    Powiązania:
    https://bibliotekanauki.pl/articles/306508.pdf
    Data publikacji:
    2020
    Wydawca:
    Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
    Tematy:
    stabilność chodu
    chód na bieżni
    prędkość marszu
    gait stability
    gait on treadmill
    preferred walking speed
    gait variability
    Opis:
    Analysis of human gait as well as diagnosis of human locomotion organ should always be conducted with velocity of gait equal to Preferred Walking Speed (PWS). The literature review shows that the PWS value is not the same in real and virtual environment. The aim of this study was to determine PWS values in both environments and to specify values of parameters used in equations enabling PWS calculations on the basis of lower limb length. Methods: Research-related tests involved 40 subjects walking on the treadmill and wearing HMD goggles. The spatial scenery made participants feel like during a walk in the park. The tests included measurements of displacements of the COP, allowing for the calculation of the Lyapunov exponent and Floquet Multiplier. Both coefficients were used to identify stability at various gait velocities. Results: The analysis revealed that the PWS in relation to gait on the treadmill with VR was lower than the PWS without VR. The final stage of research involved the determination of new values of coefficients of the formula enabling the identification of the velocity of comfort of gait in VR. Conclusions: Obtained results proved that PWS in real and virtual environment are different. The lower values were obtained for measurements in VR. On the basis of these results, value of the “a” coefficient, used in PWS calculations on the basis of lower limb length, was re-determined. The new value makes it possible to assess PWS for gait conducted on treadmill in virtual environment, what can be very important in gait evaluation.
    Źródło:
    Acta of Bioengineering and Biomechanics; 2020, 22, 1; 127-134
    1509-409X
    2450-6303
    Pojawia się w:
    Acta of Bioengineering and Biomechanics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Speeds of dinosaurs from the Albian-Cenomanian of Patagonia and sauropod stance and gait
    Autorzy:
    Mazzetta, G V
    Blanco, R E
    Powiązania:
    https://bibliotekanauki.pl/articles/20359.pdf
    Data publikacji:
    2001
    Wydawca:
    Polska Akademia Nauk. Instytut Paleobiologii PAN
    Tematy:
    paleoichnology
    dinosaur speed
    Rio Limay Formation
    gait
    Patagonia
    dinosaur
    sauropod stance
    Opis:
    Estimates of locomotory speeds of small to large-sized Patagonian dinosaurs are presented for the first time. These estimates are inferred from trackways found on fine to coarse-grained brown sandstones located in the lower section of the Candeleros Member of the Río Limay Formation (Albian-Cenomanian), Neuquén Province, Argentina. The method used is based on the measurement of the stride length (distance between two successive prints of the same foot) and of the length of the hindfoot print, which in turn, allows us to estimate the height at the hip joint and, therefore, the approximate size of the animal. The hypothesis of dynamic similarity implies that the movements of geometrically similar animals, although of different sizes, are dynamically similar only when they move with the same Froude number. The dynamically similar movements (i.e., those with equal Froude number) require equal values of relative stride length (ratio between the stride length and the hip joint height). The relationship between the relative stride length and the Froude number allows us to estimate the speeds of dinosaurs. The dinosaurian ichnofauna studied reveals low speeds that range from 0.5 to 2.6 m s⁻¹. Our analyses show that the sauropods responsible for these trackways were either walking very slowly in a bipedal stance or alternatively they were progressing quadrupedally on a slippery surface.
    Źródło:
    Acta Palaeontologica Polonica; 2001, 46, 2
    0567-7920
    Pojawia się w:
    Acta Palaeontologica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-5 z 5

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