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Journal articles on the topic 'Biceps femoris muscle'

Author: Grafiati

Published: 24 April 2022

Last updated: 30 July 2025

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1

Mehta, Jagjivan R., Kyle G. Braund, Rosemary E. McKerrell, and Maria Toivio-Kinnucan. "Isoelectric focusing under dissociating conditions for analysis of muscle protein from clinically normal dogs and Labrador Retrievers with hereditary myopathy." American Journal of Veterinary Research 50, no. 5 (1989): 633–39. https://doi.org/10.2460/ajvr.1989.50.05.633.

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SUMMARY Protein profiles of whole homogenates of anconeus (slow twitch) and biceps femoris (fast twitch) muscles of clinically normal dogs and of Labrador Retrievers with hereditary myopathy (hm) were resolved on flat bed Polyacrylamide isoelectric-focusing gels. Three methods of sample solubilization were performed. The solubilization buffer, with high concentrations of urea, precipitated the zwitterionic detergent, but use of the buffer containing 3% NP-40, 9.2M urea, and 0.1M arginine resulted in better resolution and stability of pH gradient. Gels of anconeus muscle from clinically normal

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2

Riccetti, Manon, Jules Opplert, Joao L. Q. Durigan, Carole Cometti, and Nicolas Babault. "Acute Static Stretching Results in Muscle-Specific Alterations amongst the Hamstring Muscles." Sports 8, no. 9 (2020): 119. http://dx.doi.org/10.3390/sports8090119.

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This study aimed to explore the acute effects of static stretching on the musculotendinous properties of two hamstring muscles. Twelve male volunteers underwent two testing sessions. One session was dedicated to the evaluation of the semitendinosus muscle before (PRE) and after (POST) static stretching (five sets of 30-s stretching), and the other session similarly explored the long head of biceps femoris muscle. In addition to the displacement of the myotendinous junction (MTJ), passive torque and maximal voluntary isometric torque (MVIT) were evaluated. MVIT (−8.3 ± 10.2%, p = 0.0036, d = 0.

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Mateos-Angulo, Álvaro, José Andrés Salazar-Agulló, Cristina Roldán-Jiménez, Manuel Trinidad-Fernández, and Antonio Ignacio Cuesta-Vargas. "Ultrasonography Assessment Based on Muscle Thickness and Echo Intensity in Post-Polio Patients." Diagnostics 12, no. 11 (2022): 2743. http://dx.doi.org/10.3390/diagnostics12112743.

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There is no specific designed diagnostic test for post-poliomyelitis syndrome. The most important symptoms of this syndrome are new loss of muscle strength and more fatigue. Previous studies have investigated muscle ultrasound parameters to distinguish neuromuscular disease patients from healthy controls. The aim of this study was to investigate if muscle thickness and echo intensity measured by ultrasound can discriminate post-poliomyelitis syndrome patients from healthy controls. A total of 29 post-polio patients and 27 healthy controls participated in this cross-sectional study. Anthropomet

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Noghani Ardestani, Najme, Rahman Sheikhhoseini, and Farideh Babakhani. "Anticipatory Electromyographic Activity and Onset Time in Selected Muscles of Lower Limb Between the Active and Inactive Old Women." Journal of Exercise Science and Medicine 11, no. 2 (2019): 89–96. http://dx.doi.org/10.32598/jesm.11.2.

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Introduction: This study aimed to investigate the onset time and the electromyographic activity level of the selected lower limb muscles in the active and inactive old women. Materials and Methods: In this case-control study, 28 old women with a Mean±SD age of 61.07±0.88 years were selected in the inactive (15 people) and active (13 people) groups. The electrical activity of the selected muscles of the lower limbs was collected by the EMG device in a stair down movement. Results: The onset time of tibialis anterior, vastus lateralis, and biceps femoris muscles are faster in the active group (p

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Goodall, Alex F., David A. Broadbent, Raluca B. Dumitru, et al. "Feasibility of MRI based extracellular volume fraction and partition coefficient measurements in thigh muscle." British Journal of Radiology 93, no. 1111 (2020): 20190931. http://dx.doi.org/10.1259/bjr.20190931.

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Objective: This study aimed to assess the feasibility of extracellular volume-fraction (ECV) measurement, and time to achieve contrast equilibrium (CE), in healthy muscles, and to determine whether in-flow and partial-volume errors in the femoral artery affect measurements, and if there are differences in the partition coefficient (λ) between muscles. Methods: T1 was measured in the biceps femoris, vastus intermedius, femoral artery and aorta of 10 healthy participants. This was repeated alternately between the thigh and aorta for ≥25 min following a bolus of gadoterate meglumine. λ was calcul

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Vaskoska, Rozita, Minh Ha, Zahra Batool Naqvi, Jason David White, and Robyn Dorothy Warner. "Muscle, Ageing and Temperature Influence the Changes in Texture, Cooking Loss and Shrinkage of Cooked Beef." Foods 9, no. 9 (2020): 1289. http://dx.doi.org/10.3390/foods9091289.

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This study aimed to quantify the effect of muscle, ageing and cooking temperature on the texture, cooking loss and shrinkage of cooked beef. Cuboids from unaged (1 day post mortem) and aged (14 days post mortem) semitendinosus, biceps femoris and psoas major muscles, from both sides of five beef carcasses, were cooked at four different cooking temperatures (50, 60, 70 and 80 °C) for 30 min. and their Warner–Bratzler shear force (WBSF), cooking loss and shrinkage (longitudinal and transverse) were quantified. The WBSF was reduced by ageing in the muscles at the specific cooking temperatures: ps

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Vaz, João R., Tiago Neto, José Pedro Correia, Jorge Infante, and Sandro R. Freitas. "Regional Differences in Biceps Femoris Long Head Stiffness during Isometric Knee Flexion." Journal of Functional Morphology and Kinesiology 6, no. 1 (2021): 18. http://dx.doi.org/10.3390/jfmk6010018.

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This study sought to investigate whether the stiffness of the biceps femoris long head differs between proximal and distal regions during isometric knee flexion at different contraction intensities and muscle lengths. Twelve healthy individuals performed knee flexion isometric contractions at 20% and 60% of maximum voluntary isometric contraction, with the knee flexed at 15 and 45 degrees. Muscle stiffness assessment was performed using ultrasound-based shear wave elastography. Proximal and distal regions of the biceps femoris long head were assessed. Biceps femoris long head muscle showed a g

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Miguel-Pérez, Maribel, Pere Iglesias-Chamorro, Sara Ortiz-Miguel, et al. "Anatomical Relationships of the Proximal Attachment of the Hamstring Muscles with Neighboring Structures: From Ultrasound, Anatomical and Histological Findings to Clinical Implications." Diagnostics 14, no. 16 (2024): 1725. http://dx.doi.org/10.3390/diagnostics14161725.

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Background: Injuries of the proximal attachment of the hamstring muscles are common. The present study aimed to investigate the relationship of the proximal attachment of the hamstring muscles with neighboring structures comprehensively. Methods: A total of 97 hemipelvis from 66 cryopreserved specimens were evaluated via ultrasound, anatomical and histological samples. Results: The proximal attachment of the hamstring muscles presents a hyperechogenic line surrounding the origin of the semimembranosus and the long head of the biceps femoris muscles, as well as another hyperechogenic line cover

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Budipitojo, Teguh, Ariana, Tri Wahyu Pangestiningsih, Hery Wijayanto, Dwi Liliek Kusindarta, and Dewi Kania Musana. "Studi Distribusi Glukosa Transporter 4 pada Otot Skelet Ayam Kedu Cemani." Jurnal Sain Veteriner 35, no. 2 (2017): 254. http://dx.doi.org/10.22146/jsv.34698.

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Glucose transporter (GLUT 4) is glucose transporter protein regulated by insulin, found in adipose tissue and striated muscle (skeletal and cardiac muscle). Kedu cemani chicken is one of Indonesia endemic animal, found in Kedu, Temanggung regency, Central Java. This study was required to complete microscopic documentation of Indonesia’s native biodiversity. The objective of this study was to clarify GLUT 4 distribution in skeletal muscle fibers of kedu cemani chicken by using avidin-biotin-peroxidase complex (ABC) immunohistochemistry method. This study was conducted by using pectorales major,

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Wilson, J. M. John, D. Gordon E. Robertson, and J. Peter Stothart. "Analysis of Lower Limb Muscle Function in Ergometer Rowing." International Journal of Sport Biomechanics 4, no. 4 (1988): 315–25. http://dx.doi.org/10.1123/ijsb.4.4.315.

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In an effort to seek further understanding of lower limb muscle function in the rowing movement, an electromyographic analysis was undertaken of rowers rowing on a Gjessing ergometer. A strain gauged transducer was inserted in the ergometer linkage between handle and flywheel to detect pulling force. Electrodes were placed on the following lower limb muscles: gluteus maximus, biceps femoris, rectus femoris, vastus lateralis, gastrocnemius, and tibialis anterior. Linear envelope electromyograms from each muscle and the force signals were sampled synchronously at 50 Hz. The results indicated tha

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Andrés, A. I., J. Ruiz, A. I. Mayoral, J. F. Tejeda, and R. Cava. "Influence of rearing conditions and crossbreeding on muscle color in Iberian pigs Influencia de las condiciones de crianza y del cruce en el color de los músculos de cerdos Ibéricos." Food Science and Technology International 6, no. 4 (2000): 315–21. http://dx.doi.org/10.1177/108201320000600406.

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The effects of pig crossbreeding (Iberian versus Iberian x Duroc 50%) and rearing conditions (out doors versus indoors) on muscle fiber composition, myoglobin content and objective muscle color in biceps femoris and tibialis crancalis muscles have been studied. Muscle fibers were identified as types I, IIA, IIB, oxidative IIB and IIC and the proportion of each fiber type was determined by a computer ized image analysis. Color co-ordinates L*, a*, and b* were measured and both chroma ( C*) and hue angle ( h°) were calculated. Myoglobin content and chroma value were significantly higher in tibia

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Kun, Yong Hak, and Kun Hee Kim. "Comparative Analysis of the Muscle Activity of Jiu-Jitsu Learners and Non-learners with Ippon Seio Nage." Korean Association For Learner-Centered Curriculum And Instruction 23, no. 20 (2023): 975–84. http://dx.doi.org/10.22251/jlcci.2023.23.20.975.

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Objectives The purpose of this study is to provide basic scientific data such as technical information and training methods necessary for Jiu-Jitsu learners by comparing and analyzing the muscle activity of Ippon Seio Nage movement between Jiu-Jitsu learners and non-learners. Methods Using the noraxon system, muscle activity, integrated EMG, and muscle mobilization for Left flexor carpi Radialis, Left extensor carpi Ulnaris, Left Biceps brachii, Left Triceps, Right Tibialis Anterior, Right Biceps Femoris, Right Rectus Femoris and Right Gastrocemius were measured and compared for Jiu-Jits

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Keerasomboon, Taspol, Parunchaya Jamkrajang, Weerawat Limroongreungrat, Thammanunt Chrunarm, Toshiaki Soga, and Norikazu Hirose. "Comparing the hamstring muscle activity between injured and non-injured sides during a variety of Nordic hamstring exercises." PLOS One 20, no. 6 (2025): e0325392. https://doi.org/10.1371/journal.pone.0325392.

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Objectives To compare the electromyographic activity of the Biceps femoris long head and Semitendinosus muscles during bilateral and unilateral isometric Nordic hamstring exercise performed on an inclined platform at different knee flexion angles between leg side with and without a history of hamstring strain injury. Methods Ten physically active male volunteers with a history of hamstring strain injury in either leg performed isometric Nordic hamstring exercise, maintaining the exercise position for 5 s under the following conditions: (1) bilateral, 150° knee angle on a 50° inclined platform

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ERTELT, THOMAS, and THOMAS GRONWALD. "THE CRITICAL BEHAVIOR OF THE M. BICEPS FEMORIS FOR THE RISK OF INJURY — A SIMULATION STUDY." Journal of Mechanics in Medicine and Biology 20, no. 01 (2020): 1950069. http://dx.doi.org/10.1142/s0219519419500696.

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The behavior of the M. biceps femoris with regard to its enormous vulnerability to injuries in sport remains unclear. Despite prevention programs, the rate of injuries of the hamstring muscles has risen by more than 4% in recent years. To get more insights into its function, the aim of this study was to examine the effect of different muscle insertion characteristics and activation levels using a simulation. We created a multi-segmented muscle model for evaluating the critical behavior of M. biceps femoris during a one-legged stopping maneuver. We analyzed muscle function, movement of the knee

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Conceição, Ana, Orlando Fernandes, Miguel Baia, Jose A. Parraca, Bruno Gonçalves, and Nuno Batalha. "Changes in Muscular Activity in Different Stable and Unstable Conditions on Aquatic Platforms." Biology 11, no. 11 (2022): 1643. http://dx.doi.org/10.3390/biology11111643.

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The present study aimed to analyse and compare the muscle activity of twelve participants (seven men and five women) (age 20.1 ± 0.9 years; height 170.5 ± 10 cm; body mass: 64.86 ± 8.3 kg) in two exercises, each with two variants: squat (dynamic and static) and plank (hands and elbows) in a stable environment on land and an unstable environment on an aquatic platform. The erector spinae, biceps femoris, rectus femoris, external oblique, and rectus abdominis muscles were evaluated using surface electromyography. The dynamic squat increases the recruitment of the biceps femoris and external obli

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Syed-Abdul, Majid Mufaqam, and Stephen D. Ball. "Muscle Activation in Older Females after a Community-Based Resistance Training Program: A Pilot Study." Reports 4, no. 4 (2021): 38. http://dx.doi.org/10.3390/reports4040038.

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Many randomized controlled trials utilizing resistance training have shown improvements in muscle activation in older adults. However, these programs lack applicability to community-dwelling older adults due to several challenges. Therefore, the purpose of this study was to test the effects of an eight-week community-based resistance training program on muscle activation in older adults. Eight females (age: 61 ± 4 years, body mass index (BMI): 31.7 ± 5.7 kg/m2) were enrolled in the study. The surface electromyography (sEMG) activity was evaluated before and after training for three muscles (bi

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Cadellans-Arróniz, Aida, Carlos López-de-Celis, Albert Pérez-Bellmunt, et al. "Effects of Diacutaneous Fibrolysis on Passive Neuromuscular Response and Mechanosensitivity in Athletes with Hamstring Shortening: A Randomized Controlled Trial." International Journal of Environmental Research and Public Health 18, no. 12 (2021): 6554. http://dx.doi.org/10.3390/ijerph18126554.

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Introduction. Diacutaneous Fibrolysis is defined as specific instrumental intervention to normalize function in the musculoskeletal system. It is considered a treatment method for the mechanical alterations of the locomotor system, and it is widely used in sports for therapeutic and preventive purposes. Despite the clinical benefits observed in different musculoskeletal conditions, the action mechanism of diacutaneous fibrolysis remains uncertain. There are no studies evaluating the neuromuscular response on the posterior muscular chain of the lower extremity in athletes, where overload, stiff

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Staniak, Dorota, Alicja Wójcik-Załuska, Krzysztof Sokołowski, et al. "Monitoring Hip Joint Muscle Function in Osteoarthritis Patients Following Arthroplasty: A Prospective Cohort Study." Journal of Clinical Medicine 14, no. 3 (2025): 976. https://doi.org/10.3390/jcm14030976.

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Background/Objectives: Osteoarthritis (OA) is a chronic and progressive joint disease, leading to functional limitations and significantly impairing the quality of life. Muscle weakness, reduced mobility, and compensatory biomechanical changes are common consequences, further exacerbating functional decline. The aim of this study was to assess the impact of hip osteoarthritis on muscle functionality and to evaluate the effectiveness of hip arthroplasty using the MyotonPro device to measure key biomechanical parameters, i.e., tension, stiffness, and flexibility. Methods: This cohort study inclu

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Purnomo, Ardhi Mardiyanto Indra, Lu Jian Qiang, and Catur Supriyanto. "Analysis of lower limb during squat activity using surface electromyography." Indonesian Journal of Research in Physical Education, Sport, and Health (IJRPESH) 1, no. 1 (2023): 78–86. http://dx.doi.org/10.17977/um086v1i12023p78-86.

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The purpose of this research is to discuss and analyze the extent of the influence of using the bosu ball for squat activities on the lower limb. This research will use a quantitative and descriptive research approach. Surface electromyography will be used to measure different squat positions between 900 and 1400. The measurement compares the squat position without a bosu ball with the squat position using a bosu ball. The results of the surface electromyography recording on muscle activity at 900 on the four muscles indicate that the Rectus Femoris (RF) muscle experienced an increase in the p

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Ferreira, Ricardo Maia, Pedro Nunes Martins, Hugo Nunes, Luís Gonçalves Fernandes, César Ferreira Amorim, and Luciano Maia Alves Ferreira. "The Effects of the Leg Position on the Nordic Hamstring Exercise Eccentric Force: A Randomized Cross-Over Study." Muscles 3, no. 3 (2024): 259–70. http://dx.doi.org/10.3390/muscles3030023.

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Given the posterior chain configuration, it is anticipated that tibial positioning influences hamstring recruitment; medial hamstrings should be more activated during medial rotation, while lateral hamstrings should be more activated during lateral rotation. However, most studies showing this pattern have focused on concentric or isometric strength, leaving the influence on eccentric strength fairly unknown. Therefore, the aim of this study was to investigate the electromyographic response of the hamstring muscles during Nordic hamstring exercises in three leg positions: internal rotation, ext

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Ghatak, Surajit, Sonali Adole, Debajani Deka, and Muhamed Faizal. "Third head of biceps femoris muscle-a case report." International Surgery Journal 8, no. 4 (2021): 1343. http://dx.doi.org/10.18203/2349-2902.isj20211322.

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Sometimes variations in biceps femoris may be noticed like an accessory head of biceps femoris. Here during routine cadaveric dissection in the department of anatomy. All India institute of medical sciences, Jodhpur we found a case with an accessory head of biceps femoris in both the lower limbs. The muscle belly is originating from the fibers of long head of biceps femoris and going downward medially to get inserted to the medial condyle of tibia on its medial superior aspect. On the right-side insertion site is like a sheath and on half a way it is merging with medial intermuscular septum of

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Heydari, Zhaleh, Gholamreza Aminian, Akbar Biglarian, Maryam Shokrpour, and Mohammad Ali Mardani. "Comparing the Effects of Lumbar-pelvic and Pelvic Belts on the Activity of Pelvic Muscles in Pregnant Women With Back and Pelvic Pain." Journal of Rehabilitation 24, no. 1 (2023): 132–49. http://dx.doi.org/10.32598/rj.24.1.3542.1.

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Objective The physical and hormonal changes occur in pregnant women, which may cause skeletal and muscular discomforts and back and pelvic pain. If the pelvic muscles mechanism is damaged, pelvic joints may have less stability, and the joint is more exposed to shearing force. As a result of this condition, the activity pattern of these muscles of the lumbar region may change, increased muscle activity compensates for the anterior forces, and bending moments may occur, especially when the abdomen volume is increased. In previous studies, the activity of pelvic muscles in the test of active stra

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Monajati, Alireza, Eneko Larumbe-Zabala, Mark Goss-Sampson, and Fernando Naclerio. "Analysis of the Hamstring Muscle Activation During two Injury Prevention Exercises." Journal of Human Kinetics 60, no. 1 (2017): 29–37. http://dx.doi.org/10.1515/hukin-2017-0105.

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Abstract The aim of this study was to perform an electromyographic and kinetic comparison of two commonly used hamstring eccentric strengthening exercises: Nordic Curl and Ball Leg Curl. After determining the maximum isometric voluntary contraction of the knee flexors, ten female athletes performed 3 repetitions of both the Nordic Curl and Ball Leg Curl, while knee angular displacement and electromyografic activity of the biceps femoris and semitendinosus were monitored. No significant differences were found between biceps femoris and semitendinosus activation in both the Nordic Curl and Ball

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Gérard, Rémy, Léo Gojon, Philippe Decleve, and Joachim Van Cant. "The Effects of Eccentric Training on Biceps Femoris Architecture and Strength: A Systematic Review With Meta-Analysis." Journal of Athletic Training 55, no. 5 (2020): 501–14. http://dx.doi.org/10.4085/1062-6050-194-19.

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Objective To determine the effects of an eccentric hamstrings strength-training program, performed for at least 4 weeks by healthy adults, on muscle architecture and eccentric strength. Data Sources A systematic search was performed up to October 2018 in the following electronic databases: PubMed, PEDro, CINAHL and SPORTDiscus. Combinations of the following search terms were used: eccentric strength training, eccentric loading, nordic hamstring, hamstring strength, fascicle length, pennation angle, muscle thickness, muscle architecture, biceps femoris long head, biceps femoris, and hamstring m

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Rojas-Valverde, Daniel, Randall Gutiérrez-Vargas, Alejandro Rodríguez-Montero, Lucas A. Pereira, Irineu Loturco, and Saúl Martín-Rodríguez. "Reduced muscle contractile function in elite young soccer players after a short-congested fixture period." Proceedings of the Institution of Mechanical Engineers, Part P: Journal of Sports Engineering and Technology 233, no. 2 (2018): 249–57. http://dx.doi.org/10.1177/1754337118817957.

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Soccer is a very popular sport, which has been widely investigated. However, little is known about the effects of congested fixture periods on muscle mechanical responses since access to elite teams during competitive periods is highly restricted. Thus, the goal of this study was to describe the effects of a short-congested fixture period on the neuromechanical parameters related to fatigue and stiffness of elite young soccer players. Nineteen young elite male soccer players (age 17.13 ± 0.51 years, body mass 69.00 ± 1.22 kg, and height 174.09 ± 0.84 cm) participated in the study. The players

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Comin, Jules, Peter Malliaras, Peter Baquie, Tim Barbour, and David Connell. "Return to Competitive Play After Hamstring Injuries Involving Disruption of the Central Tendon." American Journal of Sports Medicine 41, no. 1 (2012): 111–15. http://dx.doi.org/10.1177/0363546512463679.

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Background: The hamstring muscles are the most commonly injured muscle group in many different sports. Recovery time is often unpredictable and prolonged, and recurrent injury is common. Hypothesis: Hamstring injuries that disrupt the central tendon enclosed within the muscle belly require a longer recovery time than do injuries involving only muscle, epimysial fascia, or the musculotendinous junction. Study Design: Cohort study; Level of evidence, 3. Methods: Injury records from professional sports teams were reviewed to determine the length of recovery from each hamstring injury that occurre

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Garg, Rohit, Safak Uygur, Joanna Cwykiel, and Maria Siemionow. "Development of Targeted Muscle Reinnervation Model in Hind Limb Amputated Rats." Journal of Reconstructive Microsurgery 34, no. 07 (2018): 509–13. http://dx.doi.org/10.1055/s-0038-1639602.

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Background Targeted muscle reinnervation (TMR) is a novel approach to postamputation neuroma pain; however, this has not been explicitly studied. The purpose of this study was to develop a TMR model in hind limb amputated rats. Methods Ten hind limbs from 5 Sprague Dawley cadaver rats were used. Sciatic nerve, main branches of the sciatic nerve (common peroneal, tibial, sural), motor branches from the sciatic nerve to the biceps femoris and cauda femoris, gluteal nerve and its motor branches to the semimembranosus, and biceps femoris and femoral nerve were dissected to look for consistent nerv

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Araújo, J. F., F. B. Rodrigues, F. G. Abadia, et al. "Electromyographic analysis of the gait cycle phases of boxer dogs." Arquivo Brasileiro de Medicina Veterinária e Zootecnia 68, no. 4 (2016): 931–37. http://dx.doi.org/10.1590/1678-4162-8770.

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ABSTRACT Systematic studies involving technologies such as surface electromyography (sEMG) may provide important data that enable veterinarians to recognize musculoskeletal, ligamentous, and neurological alterations. The aim of this study was to describe the gait cycle phases and the timing of muscle activation in healthy Boxer dogs during gait by means of sEMG. The gait cycle of seven Boxer dogs was evaluated and sEMG was recorded from the biceps brachii, triceps brachii, brachiocephalic, rectus femoris, semitendinosus, semimembranosus, and superficial gluteal muscles of the right hemibody. C

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ERTELT, THOMAS, and REINHARD BLICKHAN. "GROUP SPECIFIC BEHAVIOR OF BIARTICULAR UPPER LEG MUSCLES EXEMPLIFIED BY SLEDGE." Journal of Mechanics in Medicine and Biology 11, no. 05 (2011): 1085–101. http://dx.doi.org/10.1142/s0219519411004307.

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The biarticular skeletal muscles represent a much considered topic in current research. Concerning these muscles, not only Lombard's paradox is of special interest. Some authors refer to their energy-transferring function and others have observed an increase of activity in M. biceps femoris after a special training. By means of so-called sledge jumps, we have experimentally examined the behavior of M. biceps femoris for two groups, jumpers and non-jumpers, whose task was to push the sledge with different loads and different speeds. The results clearly show a specific behavior of the muscles fo

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Sebesi, Balázs, Ádám Fésüs, Mátyás Varga, et al. "The Indirect Role of Gluteus Medius Muscle in Knee Joint Stability during Unilateral Vertical Jump and Landing on Unstable Surface in Young Trained Males." Applied Sciences 11, no. 16 (2021): 7421. http://dx.doi.org/10.3390/app11167421.

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(1) In the present investigation, we tested the hypothesis that unilateral countermovement jump performance is associated with knee joint stabilization ability during unilateral landing on unstable surface. (2) Twenty-five male sport students were tested for dynamometric knee extension and flexion, and hip abduction isometric strength. Myolectric activity of vastus lateralis and medialis, gluteus medius, and biceps femoris muscles were measured during unilateral countermovement vertical jump performed on a force plate, and during unilateral landing on unstable surface. (3) Vertical jump impuls

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McMahon, Christopher D., Ljiljana Popovic, Jenny M. Oldham, et al. "Myostatin-deficient mice lose more skeletal muscle mass than wild-type controls during hindlimb suspension." American Journal of Physiology-Endocrinology and Metabolism 285, no. 1 (2003): E82—E87. http://dx.doi.org/10.1152/ajpendo.00275.2002.

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Myostatin inhibits myogenesis. Therefore, we sought to determine if mice lacking the myostatin gene [ Mstn(-/-)] would lose less muscle mass than wild-type mice during 7 days of hindlimb suspension (HS). Male Mstn(-/-) and wild-type (C57) mice were subjected to HS or served as ground-based controls ( n = 6/group). Wild-type mice lost 8% of body mass and ∼13% of wet mass from biceps femoris, quadriceps femoris, and soleus, whereas the mass of extensor digitorum longus (EDL) was unchanged after HS. Unexpectedly, Mstn(-/-) mice lost more body (13%, P < 0.05) and quadriceps femoris (17%, P <

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Şen, İlker. "Clinical and Radiological Evaluation of the Treatment of Cranial Cruciate Ligament Rupture in Cats with the Musculus Biceps Femoris Transposition Technique." Acta Veterinaria 69, no. 3 (2019): 300–311. http://dx.doi.org/10.2478/acve-2019-0025.

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Abstract The aim of this study was to clinically and radiologically evaluate the technique of biceps femoris muscle transposition as a new extracapsular treatment technique for cranial cruciate ligament ruptures, which are often encountered in cats. In this study, eight cats diagnosed with cranial cruciate ligament rupture were treated with the biceps femoris muscle transposition technique. The postoperative standard clinical examination procedures were applied to each cat for 90 days. In the preoperative clinical and radiological examinations of the eight cats in the study, cranial cruciate l

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Martín-Ruiz, Julio, Ignacio Tamarit-Grancha, Clara Gallego-Cerveró, Alberto Pardo-Ibáñez, Carlos Cordente-Martínez, and Laura Ruiz-Sanchis. "Amplitude of Biceps Femoris Activation and Triaxial Acceleration in a 50-Meter Test in Sprinters: Pilot Study." Applied Sciences 14, no. 20 (2024): 9534. http://dx.doi.org/10.3390/app14209534.

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Objective: To describe the relationship between bilateral electrical activity in the biceps femoris and the variation of triaxial acceleration in three 50 m sprints. Methods: Biceps femoris muscle activation and acceleration in the anterior–posterior, mediolateral, and superior–inferior axes were measured in three 50 m sprints in nine national-level sprinters. Results: There was significant asymmetry between both legs, and the variations between axes were significant between the anterior–posterior with respect to the lateral and superior–inferior, and between the lateral and superior–inferior

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Aali, Shirin, and Shahabeddin Bagheri. "Effect of iliopsoas muscle tightness on electromyographic activity of hip extensor synergists during gait." Medical Journal of Tabriz University of Medical Sciences and Health Services 43, no. 1 (2021): 76–83. http://dx.doi.org/10.34172/mj.2021.031.

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Background: Hip flexor muscles' tightness has been considered as one of the main risk factors for neuromuscular impairment of lower extremities not only lead to change the movement patterns but also probably result in changing the neuromuscular features of other muscles. The purpose of this research is study was to evaluate the iliopsoas tightness’ effect on electromyographic activity of hip extensor synergists during gait. Methods: In this case-control study fifteen 11-14 years old adolescents with iliopsoas tightness as experimental group, and 15 healthy adolescents which matched based on ag

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Bourne, Matthew, Morgan Williams, Tania Pizzari, and Anthony Shield. "A functional MRI Exploration of Hamstring Activation During the Supine Bridge Exercise." International Journal of Sports Medicine 39, no. 02 (2017): 104–9. http://dx.doi.org/10.1055/s-0043-121150.

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AbstractThe single leg supine bridge (SLB) is a commonly employed strengthening exercise and is used as a clinical test for hamstring function in sports, however, little is known about the patterns of muscle activation in this task. To explore these activation patterns, nine healthy, recreationally active males underwent functional magnetic resonance imaging (fMRI) of their thighs at rest and immediately after 5 sets of 10 repetitions of the SLB exercise. Exercise-induced increases in the transverse (T2) relaxation time of the biceps femoris long and short heads, semitendinosus and semimembran

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Wang, Junyao, Yuehong Dai, and Xiaxi Si. "Classification and Regression of Muscle Neural Signals on Human Lower Extremities via BP_AdaBoost." Applied Sciences 12, no. 12 (2022): 5830. http://dx.doi.org/10.3390/app12125830.

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Electromyography (EMG) signals are widely applied in the classification of human motion and intention recognition as having the characteristic of earlier than actual limb motion. In this article, to improve its accuracy of classification and prediction, we firstly analyze the relationship between muscle length and joint movement and select rectus femoris and biceps femoris as the experimental muscles to collect neural signals by means of musculoskeletal analysis software. EMG sensors are used to measure those muscles’ EMG signals of five kinds of knee movements, including thigh-raising, calf-r

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Palanivelu, S. "Medial circumflex femoral artery flap for ischial pressure sore." Indian Journal of Plastic Surgery 42, no. 01 (2009): 049–51. http://dx.doi.org/10.1055/s-0039-1699312.

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ABSTRACTA new axial pattern flap based on the terminal branches of the medial circumflex femoral artery is described for coverage of ischial pressure sore. Based on the terminal branches of the transverse branch of medial circumflex femoral artery, which exit through the gap between the quadratus femoris muscle above and the upper border of adductor magnus muscle below, this fascio cutaneous flap is much smaller than the posterior thigh flap but extremely useful to cover ischeal pressure sores. The skin redundancy below the gluteal fold allows a primary closure of the donor defect. It can also

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Lang, X., C. Wang, P. J. Wu, and D. P. Casper. "Developmental changes in fatty acid-binding protein (H-FABP) mRNA expression and intramuscular fat (IMF) content in Oula sheep." Translational Animal Science 1, no. 2 (2017): 146–53. http://dx.doi.org/10.2527/tas2017.0017.

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Abstract Increasing meat consumption by Chinese people has created a focus for improving meat quality for increasing quality of life. Twenty-five Male Oula sheep were selected at 2, 21, 56, 84, and 112 d to investigate the developmental changes associated with age on the intramuscular fat (IMF) content of heart fatty acid-binding protein (H-FABP) mRNA expression in muscle. Longissimus dorsal muscle and biceps femoris muscle were sampled to measure IMF concentrations and total mRNA was extracted to measure H-FABP mRNA expression using real-time polymerase chain reaction (PCR). Growing male Oula

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Vieira, Taian M., Giacinto Luigi Cerone, Costanza Stocchi, Morgana Lalli, Brian Andrews, and Marco Gazzoni. "Timing and Modulation of Activity in the Lower Limb Muscles During Indoor Rowing: What Are the Key Muscles to Target in FES-Rowing Protocols?" Sensors 20, no. 6 (2020): 1666. http://dx.doi.org/10.3390/s20061666.

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The transcutaneous stimulation of lower limb muscles during indoor rowing (FES Rowing) has led to a new sport and recreation and significantly increased health benefits in paraplegia. Stimulation is often delivered to quadriceps and hamstrings; this muscle selection seems based on intuition and not biomechanics and is likely suboptimal. Here, we sample surface EMGs from 20 elite rowers to assess which, when, and how muscles are activated during indoor rowing. From EMG amplitude we specifically quantified the onset of activation and silencing, the duration of activity and how similarly soleus,

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Sobh, Khaled Nedal Mahmoud, Nasrul Anuar Abd Razak, and Noor Azuan Abu Osman. "Investigation of EMG parameter for transtibial prosthetic user with flexion and extension of the knee and normal walking gait: A preliminary study." Proceedings of the Institution of Mechanical Engineers, Part H: Journal of Engineering in Medicine 235, no. 4 (2021): 419–27. http://dx.doi.org/10.1177/0954411920985753.

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Electromyography signal has been used widely as input for prosthetic’s leg movements. C-Leg, for example, is among the prosthetics devices that use electromyography as the main input. The main challenge facing the industrial party is the position of the electromyography sensor as it is fixed inside the socket. The study aims to investigate the best positional parameter of electromyography for transtibial prosthetic users for the device to be effective in multiple movement activities and compare with normal human muscle’s activities. DELSYS Trigno wireless electromyography instrument was used i

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Cava, R., J. Ventanas, J. Ruiz, A. I. Andres, and T. Antequera. "Sensory characteristics of Iberian ham: Influence of rearing system and muscle location/ Caracteristicas sensoriales del jamón Ibérico: Influencia del sistema de engorde y del músculo." Food Science and Technology International 6, no. 3 (2000): 235–42. http://dx.doi.org/10.1177/108201320000600306.

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The effects of pig rearing conditions (free-range system based on acorn and pasture versus confinement on a concentrate feed) and muscle location (biceps femoris and semimembranosus) on sensory characteristics of dry-cured Iberian hams were studied. Muscle samples were sensorily evaluated for appearance, texture, aroma and flavor attributes by a trained panel. Muscle location significantly affected texture and appearance traits. Semimembranosus muscle was harder, dryer and more fibrous than was biceps femoris muscle. Rearing conditions significantly affected sensory attributes related to fatty

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Torres, Gonzalo, Estrella Armada-Cortés, Javier Rueda, Alejandro F. San Juan, and Enrique Navarro. "Comparison of Hamstrings and Quadriceps Muscle Activation in Male and Female Professional Soccer Players." Applied Sciences 11, no. 2 (2021): 738. http://dx.doi.org/10.3390/app11020738.

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(1) Background: this study aimed to determine if there are differences in quadriceps and hamstring muscle activation in professional male and female soccer players. (2) Methods: muscle activation was recorded by surface electromyography in 27 professional soccer players (19 male and 8 female). The players performed the Bulgarian squat and lunge exercises. Vastus medialis, vastus lateralis, rectus femoris, semitendinosus, and biceps femoris were the muscles analyzed. (3) Results: The statistical analysis of the hamstring:quadriceps ratio showed no significant differences (p > 0.05). Signific

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Jensen, I. H., and M. Kramhøft. "Distal rupture of the biceps femoris muscle." Scandinavian Journal of Medicine & Science in Sports 4, no. 4 (2007): 259–60. http://dx.doi.org/10.1111/j.1600-0838.1994.tb00438.x.

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Nainggolan, Hunter Design, Eddy Harijanto, Adhrie Sugiarto, Inge Permadhi, and Thariqah Salamah. "The Effect of Ophiocephalus striatus Extract on Quantitative Measurement of Biceps Brachii and Rectus Femoris in Patients with Mechanical Ventilation." Bioscientia Medicina : Journal of Biomedicine and Translational Research 4, no. 1 (2020): 1–10. http://dx.doi.org/10.32539/bsm.v4i1.104.

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Introduction A freshwater fish Ophiocephalus striatus (OS) or known locally to Indonesian as haruan, has potentials to retain musclemass of critically ill patients following its high content of amino acids, fatty acids, minerals, and vitamins. This study was conducted to investigate the effect of OS on quantitative measurements of biceps brachii and rectus femoris in patients with mechanical ventilation. Methods This was a double-blinded randomized controlled trial at tertiary hospital between July- September 2019. The study included patients aged 18-65 years old with mechani

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Joseph, Serene, Bryan Alava, Andrew Antolic, Elaine M. Richards, Charles E. Wood, and Maureen Keller-Wood. "Fetal ovine skeletal and cardiac muscle transcriptomics are differentially altered by increased maternal cortisol during gestation." Physiological Genomics 52, no. 4 (2020): 178–90. http://dx.doi.org/10.1152/physiolgenomics.00096.2019.

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We have previously found that in utero exposure to excess maternal cortisol (1 mg/kg/day) in late gestation increases the incidence of stillbirth during labor and produces fetal bradycardia at birth. In the interventricular septum, mitochondrial DNA (mt-DNA) was decreased, and transcriptomics and metabolomics were consistent with altered mitochondrial metabolism. The present study uses transcriptomics to model effects of increased maternal cortisol on fetal biceps femoris. Transcriptomic modeling revealed that pathways related to mitochondrial metabolism were downregulated, whereas pathways fo

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Hong, Jung Hwa, and Mu Seong Mun. "Relationship between socket pressure and EMG of two muscles in trans-femoral stumps during gait." Prosthetics and Orthotics International 29, no. 1 (2005): 59–72. http://dx.doi.org/10.1080/03093640500116764.

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The biomechanical interaction between the leg stump and the prosthetic socket is critical in achieving close-to-normal ambulation. Although many investigations have been performed to understand the biomechanics of trans-tibial sockets, few studies have measured the socket interface pressure for trans-femoral amputees. Furthermore, no report has examined how the residual muscle activities in the trans-femoral stump affect the socket interface pressure characteristics during gait. In this study, an experimental method was developed to measure the trans-femoral socket interface pressures and EMG

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Mercer, John A., Bryon C. Applequist, and Kenji Masumoto. "Muscle Activity During Running With Different Body-Weight-Support Mechanisms: Aquatic Environment Versus Body-Weight-Support Treadmill." Journal of Sport Rehabilitation 23, no. 4 (2014): 300–306. http://dx.doi.org/10.1123/jsr.2013-0032.

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Background:Body-weight (BW) support during running can be accomplished using deep-water running (DWR; 100% BW support) and a lower-body positive-pressure (LBPP) treadmill.Purpose:To compare lower-extremity muscle activity during DWR and running on an LBPP treadmill at matched stride frequency.Methods:Eight subjects (40 ± 6.5 y, 173 ± 7.2 cm, 66.9 ± 11.7 kg) completed 4 running conditions all at a preferred stride frequency that was determined while running with no support. Two conditions were running on the LBPP treadmill at 60% and 80% of BW, and the other 2 conditions were different DWR styl

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Rojas-Barrionuevo, Nicolás, Mercedes Vernetta-Santana, and Jesús López-Bedoya. "Functional assessment of muscle response in lower limbs of tumbling gymnasts through tensiomyography." Revista de la Facultad de Medicina 64, no. 3 (2016): 505. http://dx.doi.org/10.15446/revfacmed.v64n3.54004.

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Introduction: Jumping capacity, a distinctive technical skill of tumbling gymnasts, is associated to a successful performance in training and competition; hence the need for an individualized, precise and localized assessment of the most demanded muscle structures.Objective: To assess muscle response of the flexo-extension structure in the knee joint and the extension of the ankle joint in a sample of 12 high-performance male gymnasts.Materials and methods: An acrobatic training protocol including sets of forward somersault in tumbling track was conducted. The contraction time, delay time and

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Marchetti, Paulo H., Mauro A. Guiselini, Josinaldo J. da Silva, Raymond Tucker, David G. Behm, and Lee E. Brown. "Balance and Lower Limb Muscle Activation Between in-Line and Traditional Lunge Exercises." Journal of Human Kinetics 62, no. 1 (2018): 15–22. http://dx.doi.org/10.1515/hukin-2017-0174.

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Abstract In-line and traditional lunge exercises present differences in technique as lower limb positioning (anterioposterior), and medio-lateral (ML) balance may differentially affect primary and stabilizer muscles. The purposes of this study were to examine ML balance and muscle activation in anterior and posterior leg positions between in-line and traditional lunge exercises. Fifteen young, healthy, resistance-trained men (25 ± 5 years) performed 2 different lunge exercises (in-line and traditional) at their 10 repetition maximum in a randomized, counterbalanced fashion. Surface electromyog

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Kim, Hee-Jeong, Jung-Ha Sung, Jae-Kyun Ryu, Hyun-Chul Jung, and Junsig Wang. "Effect of Reformer Spring Resistance Modifications on Core Muscle Activity During Basic Core Muscle Exercises." Healthcare 12, no. 23 (2024): 2447. https://doi.org/10.3390/healthcare12232447.

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Background: Core muscles serve as a central group within the functional kinetic chain, stabilizing the spine during movement. The Reformer is one of the most popular and primary pieces used in Pilates core exercises, requiring effective control of core muscles. The purpose of this study was to investigate the effect of Reformer spring resistance on core muscle activity. Method: 18 healthy adult females (age: 29.83 ± 4.22 years, body height: 164.98 ± 4.14 cm, body mass: 53.67 ± 5.32 kg) participated in this study. Surface electromyography was recorded from six muscles: rectus abdominis, interna

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