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Gianluca Bochicchio, Luca Ferrari, Alberto Bottari, Francesco Lucertini, Valentina Cavedon, Chiara Milanese and Silvia Pogliaghi
Force?velocity profiling (F-v) evaluates muscle function through the identification of maximum force (F0), velocity (V0), power (Pmax) and optimal velocity (Vopt). The purpose of this study was to investigate the validity and feasibility of loaded 5 Sit-...
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Dongmin Lee, Kyengho Byun, Moon-Hyon Hwang and Sewon Lee
Arterial stiffness is associated with an increased risk of cardiovascular disease. Previous studies have shown that there is a negative correlation between arterial stiffness and variables such as skeletal muscle mass, muscular strength, and anaerobic po...
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Tetsuro Miyazaki, Toshihiro Tagami, Daisuke Morisaki, Ryoken Miyazaki, Toshihiro Kawase, Takahiro Kanno and Kenji Kawashima
Power assistive devices have been developed in recent years. To detect the wearer?s motion, conventional devices require users to wear sensors. However, wearing many sensors increases the wearing time, and usability of the device will become worse. We de...
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Kohei Koizumi, Kumiko Sasao, Yuji Koike, Akihisa Okino, Kazuhisa Takeda and Toyohiro Hamaguchi
Long-term repetitive movements, such as opening and closing scissors, increase strain on muscles and joints. Amplitude probability distribution function (APDF) analysis of surface electromyogram (sEMG) data was used to quantify the burden of muscle activ...
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Kai-Yang Lo, Min-Chen Wu, Shu-Chin Tung, City C. Hsieh, Hsueh-Hua Yao and Chien-Chang Ho
The relationship between students? school environment and exercise habits is complex, and is affected by numerous factors. However, the few studies that have been conducted on this relationship have reported inconsistent results, especially regarding Tai...
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Vasiliki Gaspari, Gregory C. Bogdanis, Ioli Panidi, Georgia Giannakopoulou, Gerasimos Terzis, Helen Kotsala, Anastasia Donti and Olyvia Donti
The association between force?time characteristics of isometric leg press (ILP) and countermovement jump (CMJ) with vastus lateralis (VL) muscle architecture, was examined in 19 female athletes (aged 23.2 ± 5.4 years). Peak force (PF), average rate of fo...
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Parham Soozandeh, Ganga Poudel, Morteza Sarkari and Kamran Behdinan
The design and implementation of a piezoelectric energy-harvesting system, aimed at stimulating the Tibialis anterior muscle to aid patients struggling with a foot drop disability, are investigated. A physical prototype designed to be installed inside a ...
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Hsien-Ru Chu, Shean-Juinn Chiou, I-Hsum Li and Lian-Wang Lee
An innovative wearable upper-limb power-assist exoskeleton system (UPES) was designed for laborers to improve work efficiency and reduce the risk of musculoskeletal disorders. This novel wearable UPES consists of four joints, each comprising a single act...
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Sergio Sebastia-Amat, Alfonso Penichet-Tomas, Jose M. Jimenez-Olmedo and Basilio Pueo
The purpose of this study was to analyze the contribution of anthropometric and strength determinants of 2000 m ergometer performance in traditional rowing. Nineteen rowers competing at national level participated in this study. Anthropometric characteri...
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Glenn Mathijssen, Pierre Cherelle, Dirk Lefeber and Bram Vanderborght
The majority of the commercial transtibial prostheses are purely passive devices. They store energy in an elastic element during the beginning of a step and release it at the end. A 75 kg human, however, produces on average 26 J of energy during one stri...
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Bartosz Wieczorek, Mateusz Kukla, Dominik Rybarczyk and Lukasz Wargula
Purpose: The main purpose of the research conducted was the analysis of kinematic and biomechanical parameters measured during manual wheelchair ramp-climbing with the use of the anti-rollback system and the comparison of the values tested with the manua...
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Chunbing Wu and Wen Zheng
Twisted and coiled polymer (TCP) can generate large stroke and output high power density, making it a promising artificial muscle. Thermally induced muscles fabricated from nylon or other polymer fibers can be used in robotic, biomedical devices, and ene...
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Peter A. O'Connor and Cutler J. Cleveland
Economic and social factors compel large-scale changes in energy systems. An ongoing transition in the United States is driven by environmental concerns, changing patterns of energy end-use, constraints on petroleum supply. Analysis of prior transitions ...
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Gaoke Ma, Hongyun Jia, Jichun Xiao and Lina Hao
Exoskeletal robots are of critical importance in the domain of mechanical boosting. The pneumatic artificial muscle (PAM) is commonly used as a flexible actuator in exoskeletal robots designed for upper limbs due to its high power-to-weight ratio, confor...
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Chang-ok Cho, Jin-Hyoung Jeong, Yun-jeong Kim, Jee Hun Jang, Sang-Sik Lee and Ki-young Lee
At relatively low effort level tasks, surface electromyogram (sEMG) spectral parameters have demonstrated an inconsistent ability to monitor localized muscle fatigue and predict endurance capacity. The main purpose of this study was to assess the potenti...
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Olha Yeroshenko, Igor Prasol, Oleh Datsok
Pág. 113 - 119
The subject matter of the article is an electromyographic signal transducer, which are an integral part of devices for adaptive electrical stimulation of muscle structures based on reverse electromyographic communication. The goal of the work is to study...
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Zhiqiang Zhu, Weijie Fu, En Shao, Lu Li, Linjie Song, Wei Wang and Yu Liu
Purpose: This study aims to investigate the acute effects of shoe midsole stiffness on the joint biomechanics of the lower extremities during specific basketball movements. Methods: Thirty participants wearing stiff midsole shoes (SS) and control shoes (...
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Muh Amdadul Hoque, Emily Petersen and Xiaomeng Fang
Thin fiber-shaped pneumatic artificial muscle (PAM) can generate contractile motions upon stimulation, and it is well known for its good compliance, high weight-to-power ratio, resemblance to animal muscle movements, and, most importantly, the capability...
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Zhaowen Shao, Wentao Zhao, Zhaotian Zuo, Jun Li and I-Ming Chen
Soft actuators have a high potential for the creative design of flexible robots and safe human?robot interaction. So far, significant progress has been made in soft actuators? flexibility, deformation amplitude, and variable stiffness. However, there are...
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Max Böhme, Hans-Peter Köhler, Robert Thiel, Jens Jäkel, Johannes Zentner and Maren Witt
A novel exoskeleton robotic system was developed to assist stair climbing. This active demonstrator consists of a motor with a cable system, various sensors, and a control system with a power supply. The objective of this preliminary study is a biomechan...
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