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Relationship between functional movement screen, athletic and karate performance in adolescents

Zarko Krkeljas, Dimitrije Kovac
2021 Human Movement  
Purpose. the tests of athletic and functional performance are widely used to assess physical ability and set performance goals. the aim of this study was to evaluate the relationship between functional movement and physical and karate-specific performance in adolescents. Methods. Karate technique, athletic performance, and Functional Movement Screen (FMS tM ) were evaluated in 20 karateka aged 10-15 years (age: 12.2 ± 1.9 years, height: 155.5 ± 16.5 cm, weight: 48.6 ± 19.5 kg). Correlation
more » ... sis determined the association between the various tests, and stepwise linear regression established performance prediction models. Results. Only individual FMS tM tests of deep squat, hurdle step, and push-up significantly correlated with gedan barai/ jaku zuki (r = 0.40, r = -0.61, r = -0.59, respectively) and the triangle step (deep squat: r = 0.43, push-up: r = -0.56). Muscular endurance, power, and agility showed a significant (p < 0.05) correlation with karate side-step and gedan barai/jaku zuki. the participants' body mass and muscle endurance were good predictors of mawashi geri (r 2 = 0.51, p < 0.05), while body mass was a strong indicator of gedan barai/jaku zuki (r 2 = 0.46, p < 0.05) and muscle endurance was a leading predictor of gedan barai (r 2 = 0.34, p < 0.05). Conclusions. A combination of functional and athletic tests may be used to assess young athletes' predisposition to karate. the training focus in young karateka should be on developing fundamental movement capacity along with fundamental sport-specific skills to allow the young athlete's natural physical development.
doi:10.5114/hm.2021.100009 fatcat:4j2phph5nzaodemqfsa34vinue

Extended Formulations and Analytic Solutions for Watercolumn Production Integrals

Žarko Kovač, Trevor Platt, Suzana Antunović, Shubha Sathyendranath, Mira Morović, Charles Gallegos
2017 Frontiers in Marine Science  
Photosynthesis parameters were estimated from chlorophyll and production profiles using the method of Kovač et al. (2016a,b) .  ...  The solution for the daily normalized production profile P B T (z) in case of the Platt et al. (1980) photosynthesis irradiance function (5) is Kovač et al. (2016a) : P B T (z) = P B m Df z (I m *  ...  Copyright © 2017 Kovač, Platt, Antunović, Sathyendranath, Morović and Gallegos. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY).  ... 
doi:10.3389/fmars.2017.00163 fatcat:rpgxtisnxfazxjuagc6mvipsq4

Analytical Wideband Model of a Common-Mode Choke

Marinko Kovacic, Zlatko Hanic, Stjepan Stipetic, Shashank Krishnamurthy, Damir Zarko
2012 IEEE transactions on power electronics  
Damir Zarko was born in Zagreb, Croatia. He received the Dipl.  ...  , Zlatko Hanic, Stjepan Stipetic and Damir Zarko are with the Department of Electric Machines, Drives and Automation, Faculty of Electrical Engineering and Computing, University of Zagreb, Croatia (e-mail  ... 
doi:10.1109/tpel.2011.2182060 fatcat:npbso4it4jesllh25n3pfkekom

Reconciling models of primary production and photoacclimation

Shubha Sathyendranath, Trevor Platt, Zarko Kovac, James Dingle, Thomas Jackson, Robert Brewin, Peter Franks, Emilio Maranon, Gemma Kulk, Heather Bouman
2020 Applied Optics  
Based on the previously published results of Kovač et al. [35] and Kovač et al.  ...  al. [36] and Kovac et al. [35] , respectively, both using a nonspectral model.  ... 
doi:10.1364/ao.386252 pmid:32400614 fatcat:sd5uwacsefbzxbtseibda2pzde

Grafting and Shading—The Influence on Postharvest Tomato Quality

Zoran S. Ilić, Athanasios Koukounaras, Lidija Milenković, Žarko Kevrešan, Aleksandra Bajić, Ljubomir Šunić, Renata Kovač, Elazar Fallik, Jasna Mastilović
2020 Agriculture  
Interaction of grafting and shading on tomato physical properties and chemical composition after 15 days of storage at 10 °C and 90% relative humidity was investigated in ungrafted and grafted tomato cultivars 'Optima F1' and 'Big beef F1' grown under shading nets (red and pearl net) and nonshaded conditions. For grafted plants 'Maxifort' rootstock was used. The effects of two weeks of storage was statistically significant when taking into account the effects of grafting, shading and variety
more » ... all tomato fruit composition parameters, except total phenols. A principal component analysis demonstrated that the changes in tomato fruit traits during the studied storage period were the main source of differentiation in tomato fruit quality. Beside a slight loss of firmness, tomato fruits were generally expected to have lower lycopene, sugar, malic and citric acid contents, higher succinic acid content, more elastic fruit skin and higher ascorbic acid content. Additionally, after storage, fruits from grafted plants had lower total phenol, higher ascorbic acid and higher succinic acid contents compared to fruits from ungrafted plants. Storage diminishes the differences in quality achieved through convenient grafting and shading combinations.
doi:10.3390/agriculture10050181 fatcat:uj2ci37u5zacrjmxfmhwuufdxu

Recovery of photosynthesis parameters fromin situprofiles of phytoplankton production

Žarko Kovač, Trevor Platt, Shubha Sathyendranath, Mira Morović, Thomas Jackson
2015 ICES Journal of Marine Science  
Kovač et al. coefficient for down-welling irradiance K is somewhat different.  ...  Kovač et al.by guest on February 26, 2016 http://icesjms.oxfordjournals.org/ Downloaded from  ... 
doi:10.1093/icesjms/fsv204 fatcat:irm3cm7t5vamvggf3r3wgpidli

D1.4 - Final Report On System Requirements And Architecture

Pavle Skočir, Ivana Podnar Žarko, Konstantinos Katsaros, Matteo Pardi, Matteo Di Fraia, Gabriel Kovacs, João Garcia, Szymon Mueller, Joaquin Iranzo, Mikołaj Dobski, Nemanja Ignjatov, Pietro Tedeschi (+1 others)
2017 Zenodo  
This deliverable provides the final collection of requirements of the symbIoTe solutions and describes the final symbIoTe architecture.
doi:10.5281/zenodo.830156 fatcat:y4o6yvfyd5dozo7qy2itb7s4ye

Extraction of Photosynthesis Parameters from Time Series Measurements of In Situ Production: Bermuda Atlantic Time-Series Study

Žarko Kovač, Trevor Platt, Shubha Sathyendranath, Michael Lomas
2018 Remote Sensing  
This is, in essence, a non-linear optimization problem that can be solved; the exact procedure is described in detail in Kovač et al. [16] and Kovač et al. [20] .  ...  For a more detailed description and discussion of the relationship between different models, the reader is referred to Kovač et al. [19] and Kovač et al. [31] .  ... 
doi:10.3390/rs10060915 fatcat:yuwfpw4ijjdvpizi3ezbdf7soq

Small-Signal Calculation of Common-Mode Choke Characteristics Using Finite-Element Method

Marinko Kovacic, Stjepan Stipetic, Zlatko Hanic, Damir Zarko
2015 IEEE transactions on electromagnetic compatibility (Print)  
Fig. 9 . 9 Comparison of measured and calculated open mode impedance for VAC 6123x425 CMC Fig. 10 . 10 Comparison of measured and calculated open mode impedance for three- Kovacic, Stjepan Stipetic  ...  , Zlatko Hanic and Damir Zarko are with the University of Zagreb, Faculty of Electrical Engineering and Computing, Department of Electric Machines, Drives and Automation, Zagreb, Croatia (e-mail: marinko.kovacic  ... 
doi:10.1109/temc.2014.2362998 fatcat:nkh7cymi2bhq7kb3czhic2pvhm

Oscillating Adriatic temperature and salinity regimes mapped using the Self-Organizing Maps method

Frano Matić, Žarko Kovač, Ivica Vilibić, Hrvoje Mihanović, Mira Morović, Branka Grbec, Nenad Leder, Tomislav Džoić
2017 Continental Shelf Research  
., 2013) , remotely sensed chlorophyll (Kovač et al., 2014) and biogeochemical data (Solidoro et al., 2009) .  ... 
doi:10.1016/j.csr.2016.11.006 fatcat:ib3xl2tajzcdnaz2zmjivmfrui

Optimised design of permanent magnet assisted synchronous reluctance motor series using combined analytical–finite element analysis based approach

Stjepan Stipetic, Marinko Kovacic, Damir Zarko
2016 IET electric power applications  
This paper presents a comprehensive approach to design of series of permanent magnet assisted synchronous reluctance motors using combined analytical and finite element calculations. A global optimization metaheuristic algorithm (Differential Evolution) is utilized in order to achieve optimal design in terms of maximum torque per volume with numerous specific boundaries imposed on motor geometry and performance. A novel approach to calculation of the specified constant power speed range and
more » ... gnetization effect in sudden symmetrical short circuit using iterative finite element magnetostatic simulations is presented. Based on the results of optimized design, a 100 kW prototype was built and tested. IET Journal Vol. No.
doi:10.1049/iet-epa.2015.0245 fatcat:zkxyyvxd5fc3lpnonu4rxuf4q4

Dense water formation in the coastal northeastern Adriatic Sea: the NAdEx 2015 experiment

Ivica Vilibić, Hrvoje Mihanović, Ivica Janeković, Clea Denamiel, Pierre-Marie Poulain, Mirko Orlić, Natalija Dunić, Vlado Dadić, Mira Pasarić, Stipe Muslim, Riccardo Gerin, Frano Matić (+6 others)
2017 Ocean Science Discussions  
The paper investigates wintertime dynamics of the coastal northeastern Adriatic Sea, and is based on numerical modelling and in situ data collected through field campaigns executed during the winter and spring of 2015. The data have been collected by a variety of instruments and platforms (ADCPs, CTDs, glider, profiling float), and have been accompanied with a one-way coupled ALADIN/ROMS modelling effort. Research focus has been put on dense water formation (DWF), thermal changes and
more » ... , and water exchange between the coastal and open Adriatic. According to both observations and modelling results, dense waters are formed in the northeastern coastal Adriatic during cold bora outbreaks, even during milder-than-average winters (as was the winter of 2015). However, dense water formed in this coastal region has, due to lower salinities, lower densities than dense water formed at the open Adriatic. Since the sea is deeper in the coastal area than at the open Adriatic, dense waters from the open Adriatic occasionally enter the coastal area near the bottom of the connecting passages, while the surface flow is mostly outward from the coastal area. Median residence time of the coastal area is estimated to about 1&amp;ndash;2 months, indicating that the coastal area may be relatively quickly renewed by the open Adriatic waters. The model significantly underestimates currents and transports in connecting channels, which may be a result of a too coarse resolution of atmospheric forcing, misrepresentation of bathymetry or absence of the air-sea feedback in the model. Obtained data represents a comprehensive marine dataset, pointing to a number of interesting phenomena to be investigated in the future.
doi:10.5194/os-2017-6 fatcat:tff3rgelefdxdirfbnzxswz53q

A 55-Year Time Series Station for Primary Production in the Adriatic Sea: Data Correction, Extraction of Photosynthesis Parameters and Regime Shifts

Žarko Kovač, Trevor Platt, Živana Ninčević Gladan, Mira Morović, Shubha Sathyendranath, Dionysios Raitsos, Branka Grbec, Frano Matić, Jere Veža
2018 Remote Sensing  
The details of the method can be found in Kovač et al. [9] and Kovač et al. [19] .  ...  However, the seasonal cycles at the three stations are quite similar (see Figure 6 in Kovač et al. [19] and Figure 6 in Kovač et al. [55] ).  ... 
doi:10.3390/rs10091460 fatcat:jbsbiioltncovm4tuathvata3q

Wintertime dynamics in the coastal northeastern Adriatic Sea: the NAdEx 2015 experiment

Ivica Vilibić, Hrvoje Mihanović, Ivica Janeković, Cléa Denamiel, Pierre-Marie Poulain, Mirko Orlić, Natalija Dunić, Vlado Dadić, Mira Pasarić, Stipe Muslim, Riccardo Gerin, Frano Matić (+6 others)
2018 Ocean Science (OS)  
<p><strong>Abstract.</strong> The paper investigates the wintertime dynamics of the coastal northeastern Adriatic Sea and is based on numerical modelling and in situ data collected through field campaigns executed during the winter and spring of 2015. The data were collected with a variety of instruments and platforms (acoustic Doppler current profilers, conductivity–temperature–depth probes, glider, profiling float) and are accompanied by the atmosphere–ocean ALADIN/ROMS modelling system. The
more » ... esearch focused on the dense-water formation (DWF), thermal changes, circulation, and water exchange between the coastal and open Adriatic. According to both observations and modelling results, dense waters are formed in the northeastern coastal Adriatic during cold bora outbreaks. However, the dense water formed in this coastal region has lower densities than the dense water formed in the open Adriatic due to lower salinities. Since the coastal area is deeper than the open Adriatic, the observations indicate (i) balanced inward–outward exchange at the deep connecting channels of denser waters coming from the open Adriatic DWF site and less-dense waters coming from the coastal region and (ii) outward flow of less-dense waters dominating in the intermediate and surface layers. The latter phenomenon was confirmed by the model, even if it significantly underestimates the currents and transports in the connecting channels. The median residence time of the coastal area is estimated to be approximately 20 days, indicating that the coastal area may be renewed relatively quickly by the open Adriatic waters. The data that were obtained represent a comprehensive marine dataset that can be used to calibrate atmospheric and oceanic numerical models and point to several interesting phenomena to be investigated in the future.</p>
doi:10.5194/os-14-237-2018 fatcat:wgcsvusoxzg57a4hb4zo2p55eq

Primary Production, an Index of Climate Change in the Ocean: Satellite-Based Estimates over Two Decades

Gemma Kulk, Trevor Platt, James Dingle, Thomas Jackson, Bror Jönsson, Heather Bouman, Marcel Babin, Robert Brewin, Martina Doblin, Marta Estrada, Francisco Figueiras, Ken Furuya (+18 others)
2020 Remote Sensing  
Primary production by marine phytoplankton is one of the largest fluxes of carbon on our planet. In the past few decades, considerable progress has been made in estimating global primary production at high spatial and temporal scales by combining in situ measurements of primary production with remote-sensing observations of phytoplankton biomass. One of the major challenges in this approach lies in the assignment of the appropriate model parameters that define the photosynthetic response of
more » ... oplankton to the light field. In the present study, a global database of in situ measurements of photosynthesis versus irradiance (P-I) parameters and a 20-year record of climate quality satellite observations were used to assess global primary production and its variability with seasons and locations as well as between years. In addition, the sensitivity of the computed primary production to potential changes in the photosynthetic response of phytoplankton cells under changing environmental conditions was investigated. Global annual primary production varied from 38.8 to 42.1 Gt C yr - 1 over the period of 1998–2018. Inter-annual changes in global primary production did not follow a linear trend, and regional differences in the magnitude and direction of change in primary production were observed. Trends in primary production followed directly from changes in chlorophyll-a and were related to changes in the physico-chemical conditions of the water column due to inter-annual and multidecadal climate oscillations. Moreover, the sensitivity analysis in which P-I parameters were adjusted by ±1 standard deviation showed the importance of accurately assigning photosynthetic parameters in global and regional calculations of primary production. The assimilation number of the P-I curve showed strong relationships with environmental variables such as temperature and had a practically one-to-one relationship with the magnitude of change in primary production. In the future, such empirical relationships could potentially be used for a more dynamic assignment of photosynthetic rates in the estimation of global primary production. Relationships between the initial slope of the P-I curve and environmental variables were more elusive.
doi:10.3390/rs12050826 fatcat:vuff4rq6bncr7keke6pbo5mxd4
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