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Matija Kvasina (born 4 December 1981) is a Croatian
racing cyclist Cycle sport is competitive physical activity using bicycles. There are several categories of bicycle racing including road bicycle racing, cyclo-cross, mountain bike racing, track cycling, BMX, and cycle speedway. Non-racing cycling spo ...
, who most recently rode for
UCI Continental team +Men Teams A team is a group of individuals (human or non-human) working together to achieve their goal. As defined by Professor Leigh Thompson (academic), Leigh Thompson of the Kellogg School of Management, " team is a group of people who a ...
. He finished 56th in the road race and 38th in the road time trial at the
2008 Summer Olympics The 2008 Summer Olympics (), officially the Games of the XXIX Olympiad () and officially branded as Beijing 2008 (), were an international multisport event held from 8 to 24 August 2008, in Beijing, China. A total of 10,942 athletes fro ...
in
Beijing Beijing, Chinese postal romanization, previously romanized as Peking, is the capital city of China. With more than 22 million residents, it is the world's List of national capitals by population, most populous national capital city as well as ...
. In 2017, Kvasina was given a four-year doping suspension after a positive drugs test at that year's Flèche du Sud.


Career

Born in
Nova Gradiška Nova Gradiška is a town located in the Brod-Posavina County of Croatia, population 14,229 (2011). It is located in the historic region of Slavonia, near the border to Bosnia and Herzegovina. The first word in the name means ''New'', and there' ...
, Kvasina was named by as part of their squad for the 2016 season. In 2016, he won the overall title at the Tour of Croatia.


Doping

Kvasina tested positive for an experimental drug known as Molidustat (BAY-85-3934), during two tests taken during the 2017 Flèche du Sud - a race in which he won. Molidustat represents a class of drugs that act on the same physiological pathways and enzyme cascades as those which are activated during altitude training. Oxygen deprivation has the effect of stimulating the body's production of
erythropoietin Erythropoietin (; EPO), also known as erythropoetin, haematopoietin, or haemopoietin, is a glycoprotein cytokine secreted mainly by the kidneys in response to cellular hypoxia; it stimulates red blood cell production ( erythropoiesis) in th ...
(EPO) - Molidustat imitates this. Kvasina was subsequently kicked out of the 2017
Tour of Austria The Tour of Austria () is a stage race, stage cycling race held in Austria. From 1949 to 1995 it was a race for amateur cyclists, turning into a professional event in 1996. In 2005 and 2006 it was organised as a 2.1 event on the UCI Europe Tour ...
. In oxygen poor environments the human body manufactures a protein called hypoxia-inducible factor (HIF), which initiates and drives the processes which allow the body to adapt to those low-oxygen conditions. Typically this involves increasing the concentrations of naturally made EPO, mobilising iron and an increase in the rate of red blood cell production. Under normal oxygen environmental conditions, HIF is kept in check (its actions are inhibited) by an enzyme called
prolyl hydroxylase Procollagen-proline dioxygenase, commonly known as prolyl hydroxylase, is a member of the class of enzymes known as alpha-ketoglutarate-dependent hydroxylases. These enzymes catalyze the incorporation of oxygen into organic substrates through a me ...
(PH). Moldustat stops PH from blocking HIF, thus, increasing both the concentrations of EPO and red blood cells in the body, imitating altitude training.


Major results

;2002 : 4th Trofeo Alcide Degasperi : 10th Overall GP Kranj ;2003 : 6th Overall Jadranska Magistrala : 7th GP Istria 3 : 8th Trofeo Alcide Degasperi ;2004 : 1st
Time trial In many racing sports, an sportsperson, athlete (or occasionally a team of athletes) will compete in a time trial (TT) against the clock to secure the fastest time. The format of a time trial can vary, but usually follow a format where each athle ...
, National Road Championships : 6th Overall Tour of Slovenia : 7th Overall Tour de l'Avenir ;2005 : 1st Road race, National Road Championships : 1st Overall Tour de Serbie ::1st Stage 2 : 4th Tour de Berne : 6th Giro del Belvedere : 8th Overall Tour de l'Avenir : 8th Poreč Trophy : 10th Overall Tour of Slovenia ;2006 : 1st
Time trial In many racing sports, an sportsperson, athlete (or occasionally a team of athletes) will compete in a time trial (TT) against the clock to secure the fastest time. The format of a time trial can vary, but usually follow a format where each athle ...
, National Road Championships : 2nd Overall Vuelta a Cuba ::1st Stage 11a ( ITT) : 3rd Overall Rhône-Alpes Isère Tour : 4th Overall Tour de Serbie : 4th GP Triberg-Schwarzwald : 5th Overall Tour of Slovenia : 6th Overall Tour de l'Avenir : 9th Overall Regio-Tour : 10th Overall Circuit des Ardennes ;2007 : National Road Championships ::1st
Time trial In many racing sports, an sportsperson, athlete (or occasionally a team of athletes) will compete in a time trial (TT) against the clock to secure the fastest time. The format of a time trial can vary, but usually follow a format where each athle ...
::3rd Road race : 1st Stage 2 Course de la Solidarité Olympique : 2nd GP Triberg-Schwarzwald : 3rd Overall Tour de Serbie : 3rd Giro del Belvedere : 6th Overall Tour of Slovenia : 6th Rund um die Hainleite : 10th Sparkassen Giro Bochum ;2008 : 1st
Time trial In many racing sports, an sportsperson, athlete (or occasionally a team of athletes) will compete in a time trial (TT) against the clock to secure the fastest time. The format of a time trial can vary, but usually follow a format where each athle ...
, National Road Championships : 1st Overall Tour de Serbie : 2nd Trofeo Zsšdi : 2nd Ljubljana–Zagreb : 8th Overall Tour of Slovenia : 10th Overall Istrian Spring Trophy ;2009 : 2nd Giro Valli Aretine : 3rd Overall
Grand Prix Cycliste de Gemenc The Gemenc Grand Prix is a cycling race held annually in Hungary. It was part of UCI Europe Tour in category 2.2 from 2005 to 2009 and back again in the same category in 2017. Winners References

* Cycle races in Hungary Recurring sporti ...
: 6th Overall Tour of Slovenia ;2010 : 4th Trofeo Internazionale Bastianelli : 9th Giro del Veneto : 10th Overall Course de la Solidarité Olympique ;2011 : 1st Banja Luka–Belgrade II : 1st Central European Tour Miskolc GP : National Road Championships ::2nd
Time trial In many racing sports, an sportsperson, athlete (or occasionally a team of athletes) will compete in a time trial (TT) against the clock to secure the fastest time. The format of a time trial can vary, but usually follow a format where each athle ...
::3rd Road race : 6th Overall Tour of Bulgaria : 6th Trofeo Avis : 8th Overall Tour of Slovenia ;2012 : 1st Overall Tour of Romania ::1st Stage 5 : 2nd Overall Sibiu Cycling Tour : 3rd
Time trial In many racing sports, an sportsperson, athlete (or occasionally a team of athletes) will compete in a time trial (TT) against the clock to secure the fastest time. The format of a time trial can vary, but usually follow a format where each athle ...
, National Road Championships : 4th Overall Tour of Szeklerland ::1st Mountains classification ::1st Stages 3 & 4 ( ITT) : 4th Central European Tour Miskolc GP : 5th Overall Tour de Serbie : 8th Overall Istrian Spring Trophy ;2013 : 1st
Time trial In many racing sports, an sportsperson, athlete (or occasionally a team of athletes) will compete in a time trial (TT) against the clock to secure the fastest time. The format of a time trial can vary, but usually follow a format where each athle ...
, National Road Championships : 2nd Overall Sibiu Cycling Tour : 3rd Overall Okolo Jižních Čech ::1st Stage 3 : 4th Raiffeisen Grand Prix : 8th Overall
Giro della Regione Friuli Venezia Giulia The Giro del Friuli-Venezia Giulia is a professional cycling race held annually in Italy. It is part of UCI Europe Tour The UCI Continental Circuits are a series of road bicycle racing competitions which were introduced in 2005 by the Union Cycli ...
: 9th Overall Istrian Spring Trophy ::1st Mountains classification : 10th Overall
Tour of Austria The Tour of Austria () is a stage race, stage cycling race held in Austria. From 1949 to 1995 it was a race for amateur cyclists, turning into a professional event in 1996. In 2005 and 2006 it was organised as a 2.1 event on the UCI Europe Tour ...
;2014 : 1st Overall Rhône-Alpes Isère Tour : 1st Mountains classification Circuit des Ardennes : 2nd Trofej Umag : 3rd Road race, National Road Championships : 3rd Overall Okolo Slovenska : 5th Overall
Tour de Bretagne Tour de Bretagne Cycliste, also known as the Tour de Bretagne trophée des granitiers and formerly known as Ruban Granitier Breton, is an annual early season professional road bicycle racing, cycling stage race held in late April and early May i ...
: 6th Tour de Berne ;2015 : National Road Championships ::1st
Time trial In many racing sports, an sportsperson, athlete (or occasionally a team of athletes) will compete in a time trial (TT) against the clock to secure the fastest time. The format of a time trial can vary, but usually follow a format where each athle ...
::3rd Road race : 3rd Overall Settimana Internazionale di Coppi e Bartali : 9th Overall Rhône-Alpes Isère Tour : 9th Overall Czech Cycling Tour ;2016 : 1st
Time trial In many racing sports, an sportsperson, athlete (or occasionally a team of athletes) will compete in a time trial (TT) against the clock to secure the fastest time. The format of a time trial can vary, but usually follow a format where each athle ...
, National Road Championships : 1st Overall Tour of Croatia : 3rd Overall Tour de Serbie : 8th Overall Tour d'Azerbaïdjan : 9th Poreč Trophy ;2017 : National Road Championships ::1st
Time trial In many racing sports, an sportsperson, athlete (or occasionally a team of athletes) will compete in a time trial (TT) against the clock to secure the fastest time. The format of a time trial can vary, but usually follow a format where each athle ...
 ::2nd Road race : 1st Overall Flèche du Sud : 7th Overall Rhône-Alpes Isère Tour ::1st Mountains classification


References


External links

* {{DEFAULTSORT:Kvasina, Matija 1981 births Living people Croatian male cyclists Cyclists at the 2008 Summer Olympics Cyclists at the 2016 Summer Olympics Olympic cyclists for Croatia Sportspeople from Nova Gradiška Sport in Brod-Posavina County Doping cases in cycling 21st-century Croatian sportsmen