Results 11 to 20 of about 23,065 (237)

The effect of hip abduction on the EMG activity of vastus medialis obliquus, vastus lateralis longus and vastus lateralis obliquus in healthy subjects [PDF]

Journal of NeuroEngineering and Rehabilitation, 2006
Study design Controlled laboratory study. Objectives The purposes of this paper were to investigate (d) whether vastus medialis obliquus (VMO), vastus lateralis longus (VLL) and vastus lateralis obliquus (VLO) EMG activity can be influenced by hip ...
Arakaki Juliano, de Vasconcelos Rodrigo, Monteiro-Pedro Vanessa, Bevilaqua-Grossi Débora, Bérzin Fausto   +4 more
doaj   +3 more sources

Ergonomic assessment of brake and accelerator mechanisms of MF285 and MF399 tractors using electromyography method [PDF]

Journal of Agricultural Machinery, 2016
Introduction: Too many people are working in the agricultural sector and therefore, pay more attention to the safety and health at work in the agricultural sector is important.
A Nikkhah, B Emadi, M Khojastehpour, S. R Attarzadeh Hossini   +3 more
doaj   +1 more source

Fatigue and the Electromechanical Efficiency of the Vastus Medialis and Vastus Lateralis Muscles [PDF]

Journal of Athletic Training, 2008
AbstractContext:The relationship between the amplitudes of the mechanomyographic (MMG) and electromyographic (EMG) signals has been used to examine the “electromechanical efficiency” (EME) of normal and diseased muscle. The EME may help us to better understand the neuromuscular relationship between the vastus medialis and vastus lateralis muscles ...
Kyle T, Ebersole, David M, Malek
openaire   +2 more sources

Quantitative ultrasound tissue characterization in shoulder and thigh muscles – a new approach

BMC Musculoskeletal Disorders, 2006
Background The echogenicity patterns of ultrasound scans contain information of tissue composition in muscles. The aim was: (1) to develop a quantitative ultrasound image analysis to characterize tissue composition in terms of intensity and structure of ...
Jørgensen Kurt, Darvann Tron, Jensen Bente R, Nielsen Pernille, Bakke Merete   +4 more
doaj   +1 more source

Acute Effects of Supra- and High-Loaded Front Squats on Mechanical Properties of Lower-Limb Muscles

Sports, 2023
Knowledge about the acute effects of supramaximal-loaded resistance exercises on muscle mechanical properties is scarce. Therefore, this study aimed to examine changes in dominant limb biceps femoris and vastus lateralis oscillation frequency and ...
Michal Krzysztofik, Michal Wilk, Dominik Kolinger, Anna Pisz, Katarzyna Świtała, Jan Petruzela, Petr Stastny   +6 more
doaj   +1 more source

Neuromechanical Properties of the Vastus Medialis and Vastus Lateralis in Adolescents With Patellofemoral Pain

Orthopaedic Journal of Sports Medicine, 2023
Background: An alteration in the force distribution among quadriceps heads is one possible underlying mechanism of patellofemoral pain. However, this hypothesis cannot be directly tested as there are currently no noninvasive experimental techniques to measure individual muscle force or torque in vivo in humans ...
Crouzier, Marion, Hug, François, Sheehan, Frances T., Collins, Natalie J., Crossley, Kay, Tucker, Kylie   +5 more
openaire   +4 more sources

Neuromuscular and acute symptoms responses to progressive elastic resistance exercise in patients with chronic obstructive pulmonary disease: Cross-sectional study

Frontiers in Medicine, 2022
BackgroundQuadriceps muscle training is a key part in the rehabilitation of chronic obstructive pulmonary disease (COPD) patients. However, exercise intensity prescription and progression with the typically used elastic bands is challenging.
Joaquin Calatayud, Joaquin Calatayud, Rodrigo Torres-Castro, Rodrigo Torres-Castro, Roberto Vera-Uribe, Roberto Vera-Uribe, Álvaro Olivares-Valenzuela, Benjamín Guzmán-González, María E. Torres, Nicolás Sepúlveda-Cáceres, Lars L. Andersen, Lars L. Andersen, Carlos Cruz-Montecinos, Carlos Cruz-Montecinos   +13 more
doaj   +1 more source

Comparison of Mitochondrial Respiration in M. triceps brachii and M. vastus lateralis Between Elite Cross-Country Skiers and Physically Active Controls

Frontiers in Physiology, 2019
RationaleThe main purposes of this study were to compare mitochondrial respiration in M. triceps brachii and M. vastus lateralis between elite cross-country (XC) skiers and physically active controls (CON), and to explore the associations between ...
Jonathan Berg, Vidar Undebakke, Øystein Rasch-Halvorsen, Øystein Rasch-Halvorsen, Lars Aakerøy, Lars Aakerøy, Øyvind Sandbakk, Arnt Erik Tjønna   +7 more
doaj   +1 more source

Specific force of the vastus lateralis in adults with achondroplasia [PDF]

Journal of Applied Physiology, 2018
Achondroplasia is a clinical condition defined by shorter stature and disproportionate limb length. Force production in able-bodied individuals (controls) is proportional to muscle size, but given the disproportionate nature of achondroplasia, normalizing to anatomical cross-sectional area (ACSA) is inappropriate.
Sims, David, Onambele-Pearson, GL, Burden, A, Payton, C, Morse, Christopher   +4 more
openaire   +3 more sources

Regional Vastus Medialis and Vastus Lateralis Activation in Females with Patellofemoral Pain [PDF]

Medicine & Science in Sports & Exercise, 2019
ABSTRACT Introduction This study aimed to investigate whether regional activation patterns in the vasti muscles differ between females with and without patellofemoral pain (PFP), and whether muscle activation patterns correlate with knee extension strength.
Gallina, Alessio, Wakeling, James M., Hodges, Paul W., Hunt, Michael A., Jayne Garland, S.   +4 more
openaire   +4 more sources