Results 41 to 50 of about 121,562 (315)

Review of Thermally Activated Twisted Coiled Polymer Actuators: A Materials Science Perspective

Advanced Functional Materials, EarlyView.
Thermally activated twisted and coiled polymer actuators (TCPAs) combine lightweight design, large deformation, and scalable fabrication for soft robotic and wearable applications. This review connects polymer structure, processing history, helix geometry, and thermomechanical characterization to actuator performance, highlighting current challenges in
Nadja Schenk, Lukas Benecke, Chokri Cherif, Johannes Mersch   +3 more
wiley   +1 more source

Slow motor neuron stimulation of locust skeletal muscle: model and measurement

, 2013
The isometric force response of the locust hind leg extensor tibia muscle to stimulation of a slow extensor tibia motor neuron is experimentally investigated, and a mathematical model describing the response presented.
Mace, Brian R., Rustighi, Emiliano, Wilson, Emma, Mace, Brian R, Newland, Philip L, Newland, Philip L., Wilson, Emma Denise   +6 more
core   +1 more source

Validity and reliability of RPE as a measure of intensity during isometric wall squat exercise [PDF]

, 2021
Background and Aims: Isometric exercise (IE), including wall squat training, has been shown to be effective at reducing resting blood pressure (BP).
Wiles, J., O'Driscoll, J., Coleman, D., Lea, J.   +3 more
core   +1 more source

A functional magnetic resonance imaging study of head movements in cervical dystonia

Frontiers in Neurology, 2016
Cervical dystonia (CD) is a neurological disorder characterized by abnormal movements and postures of the head. The brain regions responsible for these abnormal movements are not well understood, because most imaging techniques for assessing regional ...
Cecília N. Prudente, Cecília N. Prudente, Randall Stilla, Shivangi Singh, Cathrin Buetefisch, Cathrin Buetefisch, Marian Evatt, Marian Evatt, Stewart Factor, Alan Freeman, Xiaoping Philip Hu, Xiaoping Philip Hu, Ellen J Hess, Ellen J Hess, K. Sathian, K. Sathian, K. Sathian, K. Sathian, H. A. Jinnah, H. A. Jinnah, H. A. Jinnah   +20 more
doaj   +1 more source

Are Blood Pressure and Cardiovascular Stress Greater in Isometric or in Dynamic Resistance Exercise?

Sports, 2020
Medical and sports medicine associations are reluctant to endorse isometric exercise to the same extent as dynamic resistance exercise (RE). The major concern is the fear of greater increases in blood pressure (BP) that might be associated with isometric
Anastasios Kounoupis, Stavros Papadopoulos, Nikiforos Galanis, Konstantina Dipla, Andreas Zafeiridis   +4 more
doaj   +1 more source

Elbow Joint Angles in Elbow Flexor Unilateral Resistance Exercise Training Determine Its Effects on Muscle Strength and Thickness of Trained and Non-trained Arms

Frontiers in Physiology, 2021
The present study compared two unilateral arm curl resistance exercise protocols with a different starting and finishing elbow joint angle in the same ROM for changes in elbow flexors strength and muscle thickness of the trained and non-trained arms ...
Shigeru Sato, Riku Yoshida, Ryosuke Kiyono, Kaoru Yahata, Koki Yasaka, João Pedro Nunes, Kazunori Nosaka, Masatoshi Nakamura, Masatoshi Nakamura   +8 more
doaj   +1 more source

New‐Era Polymer Thermoelectrics: Material Innovations, Doping Frontiers, Decoupling Strategies, and Unconventional Applications

Advanced Materials, EarlyView.
The field of polymer thermoelectrics is entering a new era, featuring breakthroughs in addressing the conventional performance disparity between p‐type and n‐type polymers, pioneering doping frontiers, and sophisticated decoupling strategies. This review explores innovations in molecular design and superior stabilities, bridging the gap from ...
Suhao Wang
wiley   +1 more source

E. coli Extracellular Matrix: A Tunable Composite With Hierarchical Structure

Advanced Materials, EarlyView.
The complex composite‐like mechanical behavior of E. coli biofilm matrix is the result of a synergic contribution of the rigid curli and swelling pEtN‐cellulose, and emerges from specific ratio and assembly conditions. The interactions between the two fibers govern biofilm hydration and characteristic wrinkling patterns, providing crucial insights for ...
Macarena Siri, Agustín Mangiarotti, Anne Seewald, Nikolai Rosenthal, Shahrouz Amini, Emeline Raguin, Peter Fratzl, Cécile M. Bidan   +7 more
wiley   +1 more source

Fatigue-Mediated Loss of Complexity is Contraction-Type Dependent in Vastus Lateralis Electromyographic Signals

Sports, 2019
The purpose of this study was to investigate the effect of fatigue status and contraction type on complexity of the surface electromyographic (sEMG) signal.
Luis R. Hernandez, Clayton L. Camic
doaj   +1 more source

Brain Processes Involved in Motor Planning Are a Dominant Factor for Inducing Event-Related Desynchronization

Frontiers in Human Neuroscience, 2021
Event-related desynchronization (ERD) is a relative attenuation in the spectral power of an electroencephalogram (EEG) observed over the sensorimotor area during motor execution and motor imagery.
Kosei Nakayashiki, Hajime Tojiki, Yoshikatsu Hayashi, Shiro Yano, Toshiyuki Kondo   +4 more
doaj   +1 more source