Results 1 to 10 of about 280,532 (193)

Prediction of vertical jump height from anthropometric factors in male and female martial arts athletes [PDF]

open access: green, 2013
BACKGROUND: Vertical jump is an index representing leg/kick power. The explosive movement of the kick is the key to scoring in martial arts competitions.
Adam, Mohd Bakri, Zainal Abidin, Nahdiya
core   +4 more sources

VERTICAL JUMPING AND SIGNALED AVOIDANCE [PDF]

open access: yesJournal of the Experimental Analysis of Behavior, 1988
This paper reports an experiment intended to demonstrate that the vertical jumping response can be learned using a signaled‐avoidance technique. A photoelectric cell system was used to record the response. Twenty female rats, divided equally into two groups, were exposed to intertrial intervals of either 15 or 40 s.
A, Cándido, A, Maldonado, J, Vila
openaire   +2 more sources

Associations between anthropometric characteristics and physical performance in male law enforcement officers: A retrospective cohort study [PDF]

open access: yes, 2016
BACKGROUND: Police officers are often required to undertake physically demanding tasks, like lifting, dragging and pursuing a suspect. Therefore, physical performance is a key requirement. METHODS: Retrospective data for 76 male police officers (mean age 
Dawes, James Jay   +4 more
core   +2 more sources

Do stiffness and asymmetries predict change of direction performance? [PDF]

open access: yes, 2016
Change of direction speed (CODS) underpins performance in a wide range of sports but little is known about how stiffness and asymmetries affect CODS.
Fletcher, Iain M.   +4 more
core   +2 more sources

VERTICAL JUMP ENHANCEMENT WITH RESPECT TO VOLLEYBALL VERTICAL JUMP

open access: yesStudia Universitatis Babeş-Bolyai Educatio Artis Gymnasticae, 2017
The purpose of next review is to present the knowledge gained about the mechanical and physiological aspects that responsible for vertical jump (VJ) height, as well as the general training methods for VJ enhancement, with specific reference to volleyball players.
Navot MILO   +2 more
openaire   +2 more sources

Lift-off dynamics in a simple jumping robot [PDF]

open access: yes, 2012
We study vertical jumping in a simple robot comprising an actuated mass-spring arrangement. The actuator frequency and phase are systematically varied to find optimal performance.
Alex Lesov   +17 more
core   +2 more sources

Impact of various clothing variations on firefighter mobility: A pilot study [PDF]

open access: yes, 2019
Firefighter clothing is known to restrict movement and increase the risk of musculoskeletal injury. The aim of this study was to investigate differences between clothing variations and firefighter mobility.
Canetti, Elisa   +4 more
core   +1 more source

Simple model of a standing vertical jump [PDF]

open access: yesEuropean Journal of Physics, 2021
Abstract In this paper we use Newton’s third law to deduce the simplest model of a system that can perform a standing vertical jump—a two-segmented object with an initial constant repulsive force between the segments, followed by an abrupt attractive force.
openaire   +2 more sources

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