Measurement errors when estimating the vertical jump height with flight time using photocell devices: the example of Optojump [PDF]
Biology of Sport, 2016 Common methods to estimate vertical jump height (VJH) are based on the measurements of flight time (FT) or vertical reaction force. This study aimed to assess the measurement errors when estimating the VJH with flight time using photocell devices in ...
A Attia +5 more
doaj +2 more sources
Evaluation of the phase-aggression criterion for PIO detection in real-time [PDF]
, 2021 This paper presents the results of a pilot-in-the-loop experiment performed to investigate the efficacy of a pilot-induced oscillation (PIO) or adverse rotorcraft-pilot coupling (RPC) real-time detection method, to be implemented as an in-cockpit warning
Fasiello, S. +5 more
core +1 more source
Simple model of a standing vertical jump [PDF]
European 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
Bilateral and unilateral vertical ground reaction forces and leg asymmetries in soccer players
Biology of Sport, 2016 The purposes of this study were to assess unilateral and bilateral vertical jump performance characteristics, and to compare the vertical ground reaction force characteristics of the impulse and landing phase of a vertical jump between the dominant and ...
J Yanci, J Camara
doaj +1 more source
Korelasi status gizi dengan kebugaran calon atlit olahraga sepeda (Talent scouting)
AcTion: Aceh Nutrition Journal, 2022 The talent scouting process is fundamental in improving the performance of bicycle athletes. The selection process still focuses on prospective athletes' nutritional and fitness factors.
Muhammad Yani +3 more
doaj +1 more source
The effects of postactivation potentiation on sprint and jump performance of male academy soccer players. [PDF]
, 2009 The purpose of this investigation was to evaluate the postactivation potentiation (PAP) effects of both dynamic and isometric maximum voluntary contractions (MVCs) on sprint and jump performance and establish whether PAP methods could be used effectively
Kevin A Till +5 more
core +1 more source
Jurnal Kedokteran Diponegoro, 2018 Latar Belakang: Skipping adalah olahraga sederhana yang memiliki dampak terhadap kebugaran fisik. Vertical jump merupakan salah satu indikator kebugaran fisik yaitu daya ledak otot.
Ardita Hartanti Pramudani +2 more
doaj +1 more source
The effect of two types of ankle orthoses on the repetitive rebound jump performance
BMC Sports Science, Medicine and Rehabilitation, 2022 Background Ankle orthotics decreases the maximal vertical jump height. It is essential to maximize jump height and minimize ground contact time during athletic performance.
Masanori Morikawa +4 more
doaj +1 more source
Optimum take-off angle in the standing long jump [PDF]
, 2005 The aim of this study was to identify and explain the optimum projection angle that maximises the distance achieved in a standing long jump. Five physically active males performed maximum-effort jumps over a wide range of take-off angles, and the jumps ...
Wakai, M +3 more
core +1 more source
Changes in long jump take-off technique with increasing run-up speed [PDF]
, 2006 The aim of this study was to determine the influence of run-up speed on take-off technique in the long jump. Seventy-one jumps by an elite male long jumper were recorded in the sagittal plane by a high-speed video camera.
Bridgett, LA, Linthorne, NP
core +1 more source