Temat: lower extremity - Prolib Integro

Skocz do pozycji: 1.

Tytuł:: Lower extremity and spine pain in cyclists
Autorzy:: Piotrowska, Sylwia Ewa
Majchrzycki, Marian
Rogala, Piotr
Mazurek-Sitarz, Martyna
Tematy:: cycling- injuries
lower extremity
spine; Pokaż więcej
Wydawca:: Instytut Medycyny Wsi
Powiązania:: https://bibliotekanauki.pl/articles/989999.pdf Link otwiera się w nowym oknie
Opis:: Introduction. The number of cyclists increases each year. Some people treat cycling as a passion and practice it at every possible occasion, while for others it is a mean of transport or a form of relaxation at the weekend. However, very few people realize that cycling can also have a negative impact on their health. Objective. To assess the prevalence of lower extremity and spine pain in cyclists, and evaluate the influence of various factors causing it. Materials and method. The study was performed on 167 subjects during amateur cycling competitions in the Greater Poland and Kuyavian-Pomeranian Provinces. A specially prepared questionnaire was used in the study. The questions related to the pain caused by cycling, the character and the localization of the pain, and the presence of warm-up and stretching. Results. Knee pain was reported in 40% of the study subjects (mostly anterior pain – 26%). Spine pain was reported in 41% of the studied athletes, where 26% was related with the lumbar spine. Variables, such as age, weight, age, BMI, training experience and number of hours devoted to training per week had no influence on the incidence and the localization of leg pain, but it had influence in the case of spine pain. Stretching after cycling was the factor which significantly distinguished the studied groups with regard to the incidence of knee pain. Conclusions. The most common type of leg pain was knee pain (anterior knee pain) whereas spine pain was most commonly reported in the lumbar spine. Statistical analysis showed that spine pain is more often reported by people who are older, have higher weight, and people who spend more time training per week. Warm-up and stretching after cycling are recommended to cyclists who experience pain.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Symmetry of electromechanical delay, peak torque and rate of force development in knee flexors and extensors in female and male subjects
Autorzy:: Szpala, A.
Rutkowska-Kucharska, A.
Stawiany, M.
Tematy:: elektromiografia
gender
kończyna dolna
electromyography
lower extremity; Pokaż więcej
Wydawca:: Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Powiązania:: https://bibliotekanauki.pl/articles/307230.pdf Link otwiera się w nowym oknie
Opis:: Purpose: The aim of the study was to evaluate electromechanical delay (EMD), peak torque (PT) and rate of force development (RFD) in selected muscles of right and left lower extremities in groups of female and male subjects. Methods: The study evaluated 9 volunteer female subjects (mean ± SD: age: 21.67 ± 0.87 years; height: 168 ± 7 cm; body mass: 59.44 ± 4.8 kg) and 10 male university students (mean ± SD: age 22 ± 1.25 years; height: 179 ± 6 cm; body mass: 74.3 ± 5.1 kg) from the Faculty of Physical Education. Muscle torques and electromyographic activity were measured for knee flexors and extensors in static conditions, separately for the right and the left lower extremities. During the measurements, the subjects generated the maximum torque as fast as possible. Surface electrodes were placed on the right and left lower extremities on the following muscles: rectus femoris, vastus lateralis (m.VL), vastus medialis and biceps femoris. Results: Symmetry of EMD, RFD and “flexors-extensors” ratio was found in the muscles of the right and left lower extremities (with an exception of m.VL) in the group of male and female subjects. Statistical analysis demonstrated the presence of asymmetry in PT (297.66 vs. 272.05 N⋅m) and relative force in knee extensors in the group of men (3.90 vs. 3.54 N⋅m⋅kg–1). Conclusions: Symmetry of EMD and asymmetry of PT might suggest that the cause of asymmetry of the muscular force is mainly morphological characteristics of the muscle rather than the process of controlling its activity.
Dostawca treści:: Biblioteka Nauki

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Tytuł:: Effects of age and gender on spatiotemporal and kinematic gait parameters in older adults
Autorzy:: Tanaka, Ryo
Jung, Hungu
Yamashina, Shunsuke
Inoue, Yu
Nakamura, Rinna
Toda, Haruki
Imura, Takeshi
Tamura, Hiroyuki
Tematy:: aging
gait
lower extremity
older adult
trunk; Pokaż więcej
Wydawca:: Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Powiązania:: https://bibliotekanauki.pl/articles/55622162.pdf Link otwiera się w nowym oknie
Opis:: Gait changes are more prominently observed in older adults than in young adults, especially in kinematics of lower extremities and trunk. These changes can result in incidental falls during gait, possibly leading to inability to perform activities of daily living independently. This study aimed to investigate the effect of gender and age on gait changes, such as spatiotemporal parameters and peak joint angles in lower extremities and trunk during gait. Methods: A total of 387 participants (223 women) were included. The Microsoft Kinect V2 sensor was used to obtain the coordinate data of lower extremities and trunk during gait. The coordinate data obtained were processed using the software. Walking speed, stride length, stride time and cadence were calculated as spatiotemporal variables of walking. Forward trunk tilt angle (FTT), hip flexion and extension, and knee flexion and extension were measured as peak angles during one-gait cycle. Participants were categorized into five groups according to age by five years. Multivariate analysis of variance was performed to compare the spatiotemporal and kinematical data among groups. Results: Significant differences among age groups were noted in terms of the walking speed and stride length. Significant differences were also observed in the FTT and hip extension angle. Conclusions: Increased gait changes, increased peak FTT and decreased peak hip extension angle were observed with an increase of age. These altered symptoms may contribute to the screening of older adults at risk of declined physical function at an early stage.
Dostawca treści:: Biblioteka Nauki

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Tytuł:: Characteristic research of lower extremity injuries in elderly pedestrians during collisions
Autorzy:: Xiao, Sen
Zhang, Lidong
Wu, Jindong
Liu, Xiaoang
Zhang, Hao
Tematy:: lower extremity injury
car pedestrian collision
impact position
impact angle; Pokaż więcej
Wydawca:: Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Powiązania:: https://bibliotekanauki.pl/articles/55622164.pdf Link otwiera się w nowym oknie
Opis:: The aim of this research is to study the trend of pedestrian lower extremity injuries during vehicle-pedestrian collisions. Methods: In this study, pedestrian’s age, collision angle and pedestrian’s position are considered influencing factors. Nine experiments using a novel lower extremity mechanical model are designed with the orthogonal experiment method. Results: Under the same collision angle, collisions in the left and right positions caused more serious tibia injuries than the middle position. As for the collision angle, the tibial injury at +45° is more significant than the tibial injury at −45°, and the injury of oblique collisions is slightly greater than that at 0°. Moreover, tibial injury is more sensitive to research variables than femoral injury. When the collision angle and position are changed, the difference ratio of tibia stress is by 483.2% higher than that of femur stress. The axial force and bending moment of the quadriceps tendon in the left-position collision reach peak values, which are 3.83 kN and 165.98 Nm, respectively. The peak quadriceps tendon axial force is captured with the collision angle of −45°, and the peak quadriceps tendon bending moment is obtained with a collision angle of +45°. Conclusions: The effects of differences in impact position and angle on lower extremity injury in the elderly were analyzed, and the results of this study can be used as a reference for research on lower extremity protection.
Dostawca treści:: Biblioteka Nauki

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Tytuł:: Virtual-Based Aquatic Plyometric Training: How it Effects Lower Extremity Muscle Strength?
Autorzy:: Simanjuntak, Viktor
Setiawan, Edi
Yanti, Novi
Lalu Moh, Yudha Isnaini
Winarno, Mashuri Eko
Tematy:: virtual-based plyometric aquatic
lower extremity
muscle strength
mixed methods research; Pokaż więcej
Wydawca:: Uniwersytet Szczeciński. Wydawnictwo Naukowe Uniwersytetu Szczecińskiego
Powiązania:: https://bibliotekanauki.pl/articles/28761971.pdf Link otwiera się w nowym oknie
Opis:: The low achievement of long jump athletes and the limited virtual-based aquatic plyometric exercises to increase lower extremity muscle strength are the gaps in this study. This study aims to increase lower extremity muscle strength of long jump athletes through virtual-based plyometric aquatic training. This research adopted a mixed methods research. This study involved participants from long jump athletes at the University of Tanjung Pura in Indonesia (n = 20). Participants were divided into two groups, namely an experimental group (n = 10) and control group (n = 10). The quantitative instrument involved a leg dynamometer for measuring lower extremity muscle strength. While, the qualitative instrument used in-depth interview. Quantitative data analysis was carried out through IBM SPSS to calculate descriptive statistics and normality, while the paired sample t-test to test differences in lower extremity muscle strength values in the experimental and control groups. Qualitative analysis was carried out through recording, describing and coding stages, which categorized into three themes. Based on quantitative results, it showed that virtual-based plyometric aquatic training was proven significantly increase lower extremity muscle strength (ps0.05), but there was no significant effect in the control group (p & 0.05). Qualitative results found out that most of the participants gave a positive opinion regarding virtual-based plyometric aquatics. Thus, this study confirms that virtual-based plyometric aquatic training can be used to increase lower extremity muscle strength.
Dostawca treści:: Biblioteka Nauki

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Tytuł:: Assessing the impact of home-based conventional exercise and cryotherapy on lower limb muscle strength and walking ability in individuals with knee osteoarthritis: a randomized controlled clinical trial
Autorzy:: MohammedSadiq, Hawar Abdulrazaq
Rasool, Mohammad Tahir
Tematy:: cryotherapy
osteoarthritis
lower extremity
walking
muscle stretching exercises; Pokaż więcej
Wydawca:: Akademia Bialska im. Jana Pawła II
Powiązania:: https://bibliotekanauki.pl/articles/61030134.pdf Link otwiera się w nowym oknie
Opis:: Background. Knee osteoarthritis ( KOA) is a common a gerelated joint condition causing discomfort, reduced physical capability, functional diminishment, and diminished life quality. Material and methods. In this clinical randomized controlled trial, KOA-diagnosed individuals were randomly allocated into three cohorts: an experimental cohort (n=17), a control cohort (n=14), and a secondary control cohort (n=17). Interventions included two months of home-based exercise (HBE) with cryotherapy, exclusive HBE engagement for two months, and routine therapeutic and physiotherapeutic interventions at a medical facility. Results. The experimental and first control cohorts exhibited notably enhanced lower-limb muscle strength and walking capabilities compared with the second control cohort after two months. Both experimental and first control groups showed significantly lower fivetime sit-to-stand scores (5TSTS) and walking 40 meters scores compared with the second control group (p<0.0001). However, the control group displayed slightly improved scores in 5TSTS and 4x10-meter walking relative to the experimental group, though not statistically significant. Conclusions. Combining HBE with cryotherapy did not significantly improve lower-limb muscle strength and walking in KOA patients.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 7.

Tytuł:: Fracture fusion : revolutionizing the recognition of bone fractures with MetaMag efficiency approach
Autorzy:: Rajeashwari, S.
Arunesh, K.
Tematy:: fracture
Lower Extremity Radiographs dataset
diabetes
Deep Learning
radiograph images
EfficientNet; Pokaż więcej
Wydawca:: Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Instytut Informatyki Technicznej
Powiązania:: https://bibliotekanauki.pl/articles/59122880.pdf Link otwiera się w nowym oknie
Opis:: Bone fractures are common in diabetic patients and can result in several musculoskeletal conditions. Both type 1 and type 2 diabetes substantially increase the risk and severity of bone fractures. Prompt treatment and management of diabetes and its complications are crucial to mitigate this serious complication. Detection and diagnosis in its early stage can reduce the challenging conditions in treatment. Traditional image processing techniques like digital-geometric analysis, entropy measures, and gray-level co-occurrence matrices have been used for automated bone fracture detection. However, these detection methods rely neither on healthy controls nor diabetic-affected patients. Only few studies focused on detecting fractures in diabetic patients. The rising prevalence of diabetic ankle fractures made the study emphasize the development of a fracture detection model based on the Meta Magnify(MetaMag) efficiency model. The proposed model involves the Lower Extremity Radiographs (LERA)dataset, which consists of image samples of normal and abnormal lower extremities of the body, such as the hip, ankle, knee, and foot. Pre-processing involves a one-hot encoding method that handles the missing data and represents categorical variables as numerical values. Further, the classification is performed using the MetaMag efficiency model, incorporated with MetaMag scaling and unified normalization. Further, the efficiency of the proposed model is analyzed by comparing it with conventional EfficientNet and another model. Finally, the proposed work’s performance is analyzed using evaluation measures such as accuracy, precision, recall and F1-score. The results indicate the improved efficiency of the model.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 8.

Tytuł:: Diagnosis and treatment of lower extremity arterial disease - a survey among family medicine trainees in Poland
Autorzy:: Chlabicz, Sławomir
Danieluk, Aleksandra
Niemcunowicz-Janica, Anna
Windak, Adam
Opis:: Guidelines point to the ankle-brachial index (ABI) as a non-invasive tool for the initial diagnosis of lower extremity artery disease (LEAD). Questions have been raised whether primary practices should perform ABI. An online questionnaire was distributed among family medicine trainees in two academic centers in Poland. The questionnaire aimed to establish their knowledge about LEAD management and their opinion on the usefulness of ABI measurement and other LEAD diagnostic methods in primary care. ABI measurement was found either very or moderately useful in LEAD diagnosis by 94.5% of the respondents. Among the three most important elements of LEAD management, lifestyle changes, secondary prevention of atherosclerosis and exercise treatment were chosen, respectively, by 98.6%, 83.6% and 72.6% of them. ABI was seen as a useful diagnostic method at the primary care by 74% of the participants; however, 82.2% of them do not have access to ABI measurement in their workplace. The residents have good knowledge of the diagnostic methods of LEAD and consider ABI measurement as useful in LEAD diagnosis. However, most of them do not have access to ABI measurements in their clinical practices. Future discussion and potential financial changes will be needed for the introduction of ABI measurements into Polish primary care.
Dostawca treści:: Repozytorium Uniwersytetu Jagiellońskiego

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Skocz do pozycji: 9.

Tytuł:: Lower extremity joint reaction forces and plantar fascia strain responses due to incline and decline walking
Autorzy:: Yamin, Noor Arifah Azwani Abdul
Basaruddin, Khairul Salleh
Bakar, Shahriman Abu
Salleh, Ahmad Faizal
Som, Mohd Hanafi Mat
Bakar, Asyraf Hakimi Abu
Tematy:: surface inclination
incline/decline walking
plantar fascia strain
joint reaction forces
lower extremity joints; Pokaż więcej
Wydawca:: Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Powiązania:: https://bibliotekanauki.pl/articles/55622111.pdf Link otwiera się w nowym oknie
Opis:: The present study aims to investigate the effect of incline and decline walking on ground and joint reaction forces (JRF) of lower extremity and plantar fascia strain (PFS) under certain surface inclination angles. Methods: Twenty-three male subjects walked on a customized platform with four different surface inclinations (i.e., 0, 5, 7.5 and 10°) with inclined and declined directions. The motion of the ten reflective markers was captured using Qualysis motion capture system (Qualysis, Gothenburg, Sweden) and exported to a visual three-dimensional (3D) software (C-motion, Germantown, USA) in order to analyze the GRF, JRF and PFS. Results: The results found that the peak vertical GRF is almost consistent for 0 and 5° inclination slope but started to decrease at 7.5° onwards during decline walking. The most affected JRF was found on knee at medial-lateral direction even as low as 5 to 10° inclination for both walking conditions. Furthermore, the findings also show that the JRF of lower extremity was more affected during declined walking compared to inclined walking based on the number of significant differences observed in each inclination angle. The PFS was found increased with the increase of surface inclination. Conclusions: The findings could provide a new insight on the relationship of joint reaction forces and strain parameter in response to the incline and decline walking. It would benefit in providing a better precaution that should be considered during hiking activity, especially in medial-lateral direction in order to prevent injury or fall risk.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 10.

Tytuł:: Ultrasonograficzna ocena średnicy światła tętnic kończyn dolnych u osób zdrowych – zależności od wieku, płci, parametrów morfologicznych badanego
Ultrasound assessment of the caliber of the arteries in the lower extremities in healthy persons – the dependency on age, sex and morphological parameters of the subjects
Autorzy:: Czyżewska, Dorota
Ustymowicz, Andrzej
Krysiuk, Kamil
Witkowski, Paweł
Zonenberg, Mateusz
Dobrzycki, Konrad
Łebkowska, Urszula
Tematy:: artery
caliber
color Doppler
lower extremity
ultrasound
kolorowy doppler
kończyna dolna
tętnica
ultrasonografia
średnica światła; Pokaż więcej
Wydawca:: Medical Communications
Powiązania:: https://bibliotekanauki.pl/articles/1061151.pdf Link otwiera się w nowym oknie
Opis:: Aim: The aim of this paper was to evaluate the caliber of the following arteries in the lower extremities: the common femoral artery, superficial femoral artery, popliteal artery, posterior tibial artery and dorsalis pedis artery and to determine the relation of the calibers to age, sex and morphological parameters of the body such as weight, height and BMI of the subject. Material: Two hundred and twenty-eight healthy persons aged 18–81 were examined (average ±SD; 43.1±16.71): 134 women aged 19–74 (43.2±15.63) and 94 men aged 18–81 (43±18.22). Methods: The study was conducted with the use of a linear probe of 7.5 MHz frequency. The vascular caliber was assessed after the color map (color Doppler) was placed on a B-mode image. Results: The average and standard deviation values for the calibers of examined vessels were determined. The calibers of all vessels examined in the group of men were statistically significantly larger than those in the group of women. No statistically significant differences between the calibers of the right and left sides were determined. The statistically significant correlations were specified between the age and the caliber of the examined vessels; positive for large femoral arteries and negative for the arteries of the crus and foot. Positive, statistically significant correlations between the caliber and the height, weight and BMI were also reported. Conclusions: The reported calibers of the arteries in the lower extremities and their relation to age, sex and morphological parameters of the subjects enable the differentiation of the physiological remodeling of the vessels from the pathological processes in e.g. atherosclerosis or hypertension.
Cel: Celem pracy jest ocena średnicy światła tętnic kończyn dolnych: tętnicy udowej wspólnej, tętnicy udowej powierzchownej, tętnicy podkolanowej, tętnicy piszczelowej tylnej i tętnicy grzbietowej stopy u osób zdrowych oraz ustalenie jej zależności od wieku, płci oraz parametrów morfologicznych ciała (waga, wzrost, BMI) badanego. Materiał: Zbadano 228 zdrowych osób w wieku 18–81 lat (średnia ±SD; 43,1±16,71): 134 kobiety w wieku 19–74 lat (43,2±15,63) i 94 mężczyzn w wieku 18–81 lat (43±18,22). Metoda: Badania przeprowadzano za pomocą sondy liniowej, o częstotliwości 7,5 MHz. Światło naczyń oceniano po nałożeniu na obraz w prezentacji B mapy kolorów (kolorowy doppler). Wyniki: Ustalono średnie i odchylenie standardowe dla średnicy światła badanych naczyń. Średnice światła wszystkich zbadanych naczyń w grupie mężczyzn były istotnie statystycznie większe od wartości w grupie kobiet. Nie stwierdzono istotnych statystycznie różnic średnicy światła naczyń pomiędzy stronami (prawa – lewa). Wykazano występowanie istotnych statystycznie korelacji pomiędzy wiekiem a średnicą światła badanych naczyń, dla dużych tętnic uda – dodatnich, dla tętnic podudzia i stopy – ujemnych. Odnotowano także istotne statystycznie dodatnie korelacje pomiędzy wzrostem badanych, wagą i BMI a średnicą światła naczyń. Wnioski: Ustalone średnice światła tętnic kończyn dolnych oraz ich zależności od wieku, płci i parametrów morfologicznych badanego umożliwią odróżnienie fizjologicznej przebudowy naczynia od procesu patologicznego, zachodzącego na przykład w przebiegu miażdżycy czy nadciśnienia.
Dostawca treści:: Biblioteka Nauki

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