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Peter Kalavský, Róbert Rozenberg, Peter Korba, Martin Kelemen, Jr., Matej Anto?ko, Jozef Sabo and Milan D?unda
Testing in the field of parachute technology provides space for the application of new and innovative methods of measuring operating and functional parameters. The main aim of the paper is to present the results of research for the verification of the ph...
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Kyeong Eun Min, YongSuk Lee and Jihong Park
To examine individual or combined effects of static stretch and explosive contraction on quadriceps spinal-reflex excitability (the peak Hoffmann?s reflex normalized by the peak motor-response) and the latency times of the Hoffmann?s reflex and motor-res...
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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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Sébastien Garcia, Nicolas Delattre, Eric Berton and Guillaume Rao
Patellar tendinopathy is a chronic overuse injury of the patellar tendon which is prevalent in jump-landing activities. Sports activities can require jumping not only with a vertical component but also in a forward direction. It is yet unknown how jumpin...
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Samuel Manzano-Carrasco, Jose Luis Felipe, Javier Sanchez-Sanchez, Antonio Hernandez-Martin, Ivan Clavel, Leonor Gallardo and Jorge Garcia-Unanue
The current study aimed at analyzing the relationship between body composition, adherence to the Mediterranean diet (MD), and physical fitness (PF) in a young active population. A total of 1198 athletes (boys = 875; girls = 323) enrolled in different mun...
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Robin Orr, Ben Schram and Rodney Pope
Law-enforcement officers increasingly wear body armour for protection; wearing body armour is common practice in military populations. Law-enforcement and military occupational demands are vastly different and military-styled body armour may not be suita...
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Chengwei Huang, Yong Liu, Bing Bai and Ke Wang
The conventional flying and adhesion robot adsorbs on the wall by controlling the attitude angle to generate a horizontal-direction force combined with the negative-pressure device at the target position. However, when the robot is in contact with the wa...
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Chengwei Huang, Yong Liu, Ke Wang and Bing Bai
Based on the bionic behavior of geckos, this paper presents a land?air?wall cross-domain robot which can fly in air, run on the ground, and adhere to various wall surfaces. When geckos jump and adsorb to vertical surfaces such as trunks, they can still a...
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Filip Ujakovic and Nejc ?arabon
Change of direction (COD) ability is essential for sport performance in high level team sports such as basketball, however, the influence of asymmetries on COD ability is relatively unknown. Forty-three junior and senior level elite basketball players pe...
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Jürgen Höher, Isabella Ostner, Anne Schraplau, Nina Sprenger, Ulrike Allers, Helen Sulprizio, Arndt Düsing, Markus Fink, Caroline Schmidt-Lucke and Oliver Tenfelde
This study evaluated the single-leg vertical hop test (SLVHT), using digital sensor technology, for the functional assessment of rehabilitation progress in patients after ACL reconstruction (ACL-R). Between January 2019 and June 2022, 143 patients (26.6 ...
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Junyoung Ko, Kyeongtak Song, Hoon Kim, Sae Yong Lee and Jihong Park
Landing on a single-leg without receiving direct visual information (e.g., not looking at the ground) may increase the risk of injury. We examined whether visual focus contributed to the changing lower-extremity dynamics and patellofemoral joint stress d...
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Kristof Kipp, John Krzyszkowski, Todd Smith, Christopher Geiser and Hoon Kim
The purpose of this study was to investigate and compare the biomechanics of countermovement (CMJ) and preferred-style (PrefJ) jumps. Eight male basketball players (age: 19 ± 1 year; height: 1.84 ± 0.14 m; mass: 92.8 ± 11.4 kg) participated in a cross-se...
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Liangliang Xiang, Qichang Mei, Datao Xu, Justin Fernandez and Yaodong Gu
Human toes are crucial for vertical jumping performance. The purpose of this study is to investigate the acute effect of hallux abduction manipulation on foot inter-segment kinematic alterations and plantar loading redistribution during the countermoveme...
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João P. Barbosa, Mário C. Marques, Henrique P. Neiva, Dulce Esteves, Alicia M Alonso-Martínez, Mikel Izquierdo, Rodrigo Ramirez-Campillo, Cristian Alvarez and Daniel A. Marinho
Backpacks for transporting school loads are heavily utilized by children, and their mechanical advantages have been allowing children to transport heavy loads. These heavy loads may increase ground reaction forces (GRFs), which can have a negative effect...
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Rashedunnabi Ali Hasan Muhammad and Norio Tanaka
The 2011 Great East Japan tsunami revealed the limit of using natural or artificial infrastructures as a single tsunami countermeasure. In recent tsunami mitigation strategy, interest in a hybrid defense system (combination of natural and artificial infr...
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John Z. G. Ma, Michael P. Hickey and Attila Komjathy
The effect of an ionospheric dynamo electric field on the electron density and total electron content (TEC) perturbations in the F layer (150?600 km altitudes) is investigated at two arbitrarily selected locations (noted as 29° N and 60° N in latitudes) ...
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