Results 51 to 60 of about 274,178 (292)

From Folding Mechanics to Robotic Function: A Unified Modeling Framework for Compliant Origami

Advanced Science, EarlyView.
A geometry‐consistent DDG framework captures compliant origami deformation from rigid‐like folding to soft panel bending. By tuning crease and panel stiffness, bistable snap‐through responses transform into smooth monostable deformation, enabling programmable stability and robot‐scale locomotion.
Bohan Zhang, Bo Wang, Huajiang Ouyang, Zhigang Wu, Haohao Bi, Jiawei Xu, Mingchao Liu, Weicheng Huang   +7 more
wiley   +1 more source

Flexor pronator muscles' contribution to elbow joint valgus stability: ultrasonographic analysis in high school pitchers with and without symptoms

JSES International, 2020
Background: Few researchers have examined the different contributions of flexor-pronator muscles to valgus stress in high school baseball pitchers with and without elbow symptoms.
Tsuyoshi Tajika, MD, PhD, Noboru Oya, MD, PhD, Tsuyoshi Ichinose, MD, PhD, Noritaka Hamano, MD, PhD, Tsuyoshi Sasaki, MD, PhD, Daisuke Shimoyama, MD, Hitoshi Shitara, MD, PhD, Atsushi Yamamoto, MD, PhD, Tsutomu Kobayashi, MD, PhD, Masaaki Sakamoto, RPT, PhD, Kenji Takagishi, MD, PhD, Hirotaka Chikuda, MD, PhD   +11 more
doaj   +1 more source

Sonomyographic responses during voluntary isometric ramp contraction of the human rectus femoris muscle [PDF]

, 2011
This paper aims to investigate the relationship between torque and muscle morphological change, which is derived from ultrasound image sequence and termed as sonomyography (SMG), during isometric ramp contraction of the rectus femoris (RF) muscle, and to
Zhiguo Zhang, Shing-Chow Chan, Yong-Ping Zheng, Zhenyu Zhu, Guo, JY, Zheng, YP, Chan, SC, Zhu, Z, Xin Chen, Jing-Yi Guo, Chen, X, Zhang, Z   +11 more
core   +1 more source

Single‐Sensor Vibration Sensing in Anisotropic Composites Enabled by Disordered Metasurfaces

Advanced Science, EarlyView.
This work develops a single‐sensor vibration sensing (SSVS) framework that integrates disordered metasurfaces with compressive sensing. Comprehensive numerical and experimental validations demonstrate that, by manipulating anisotropic guided wave propagation through metasurfaces, the proposed SSVS framework enables high‐fidelity multi‐source vibration ...
Jianjie Zhang, Lanhe Xu, Zhongzheng Zhang, Yongbo Li, Eric Li, Asoke K. Nandi, Bing Li   +6 more
wiley   +1 more source

Acute blood pressure responses after different isometric handgrip protocols in hypertensive patients

Clinics, 2018
OBJECTIVE: The present study analyzed blood pressure responses after a single session of isometric handgrip exercise performed with different volumes and intensities by patients with hypertension.
Gustavo O. Silva, Breno Q. Farah, Antonio H. Germano-Soares, Aluísio Andrade-Lima, Fabio S. Santana, Sérgio LC. Rodrigues, Raphael M. Ritti-Dias   +6 more
doaj   +1 more source

Reliability of isometric and isokinetic trunk flexor strength using a functional electromechanical dynamometer [PDF]

PeerJ, 2019
Aim To determine the absolute and relative reliability of functional trunk tests, using a functional electromechanical dynamometer to evaluate the isokinetic strength of trunk flexors and to determine the most reliable assessment condition, in order to ...
Angela Rodriguez-Perea, Luis J. Chirosa Ríos, Dario Martinez-Garcia, David Ulloa-Díaz, Francisco Guede Rojas, Daniel Jerez-Mayorga, Ignacio J. Chirosa Rios   +6 more
doaj   +2 more sources

Self‐Powered All‐in‐One Wearable Bioelectronics Driven by Pneumatic Energy Buffering of Daily Footsteps

Advanced Science, EarlyView.
A pneumatic energy‐buffering strategy transforms transient and intermittent footsteps into quasi‐continuous electrical energy for a self‐powered wearable biosensing platform. The footwear‐integrated air‐pumping harvester, combined with the rationally designed power‐management system, powers a wearable ankle PPG device with reduced motion artifacts ...
Ji‐Seok Kim, Tae Woog Kang, Hyunjoon Yoo, Jawon Ha, Yunuo Huang, Hee Han, Chi Won Ahn, Woon‐Hong Yeo, Il‐Kwon Oh   +8 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

Effect of combined actions of hip adduction/abduction on the force generation and maintenance of pelvic floor muscles in healthy women. [PDF]

PLoS ONE, 2017
Pelvic floor muscle (PFM) force and coordination are related to urinary incontinence severity and to sexual satisfaction. Health professionals frequently combine classic PFM exercises with hip adduction/abduction contraction to treat these disorders, but
Amanda C Amorim, Licia P Cacciari, Anice C Passaro, Simone R B Silveira, Cesar F Amorim, Jefferson F Loss, Isabel C N Sacco   +6 more
doaj   +1 more source

The effect of exercise induced hyperthermia on muscle fibre conduction velocity during sustained isometric contraction [PDF]

, 2011
This study investigated the effect of dynamic exercise in a hot environment on muscle fibre conduction velocity (MFCV) of the knee extensors during a sustained isometric contraction.
St Clair Gibson, Alan, Albertus-Kajee, Yumna, Hunter, Angus, Yumna Albertus-Kajee, Gibson, Alan St Clair, Angus Hunter, Alan St Clair Gibson   +6 more
core   +1 more source