Vol. 6, No 1, 2008 pp. 1 - 10
UDC
796.41.613
Review paper
NON-INVASIVE DETERMINATION
OF THE ANAEROBIC THRESHOLD BASED
ON THE HEART RATE DEFLECTION POINT
Aleksandar Ignjatović1, Peter Hofmann2, Dragan Radovanović3
1Faculty of Pedagogy, University of Kragujevac, Jagodina, Serbia
E-mail: aleksig79@yahoo.com
2Institute of Sport Science, Department of Exercise Physiology,
Karl-Franzens University of Graz, Graz, Austria
3Faculty of Sport and Physical Education, University of Niš, Niš, Serbia
Abstract. One of the numerous methods for determining the upper limit of individual aerobic metabolism is the Conconi test. It is a simple, non blood-based test, which can give an indication of an athlete's condition or state of training. It is an extremely reliable and powerful predictor of performance in an aerobic exercise. It is based on the correlation between the anaerobic threshold and a deflection point in the heart rate during an incremental exercise test. The reason why some authors have questioned the validity of the concept is the fact that no uniform HR response could be expected from all individuals during incremental exercise. Although physiological mechanisms behind the heart rate deflection point phenomena have still not fully been analyzed and there are still some open questions regarding this method being used to determine the anaerobic threshold non-invasively, in practice it is an easy-to-apply and accurate method to use on subjects presenting a heart rate deflection.
Key words:
Anaerobic threshold, the Conconi test, Heart rate deflection point
NEINVAZIVNO ODREĐIVANJE ANAEROBNOG PRAGA
NA OSNOVU DEFLEKSIJE SRČANE FREKFENCIJE
Conconijev test predstavlja jednu od mnogobrojnih metoda za određivanje anaerobnog praga. On je razvio jednostavnu metodu za procenu nivoa utreniranosti sportiste bez analiziranja krvi. Takođe, ova metoda je veoma pouzdana i predstavlja jak prediktor aerobnih sposobnosti sportiste. Ova metoda je zasnovana na povezanosti između anaerobnog praga i trenutka defleksije srčane frekvence prilikom testa sa postepenim povećanjem intenziteta. Glavni razlog zbog kojeg su pojedini autori izrazili svoje sumnje u validnost metode, predstavlja činjenica da se regularan odgovor srčane frekvence tokom testa sa postepenim povećanjem intenziteta ne može očekivati u svim slučajevima. Pored toga što fizioloski mehanizmi, koji stoje iza fenomena momenta defleksije srčane frekvence nisu u potpunosti razjašnjeni, postoje još uvek otvorena pitanja u vezi sa ovom metodom za neinvazivno određivanje anaerobnog praga. Zbog svoje preciznosti i jednostavne primene, ona predstavlja veoma popularnu metodu u praksi, kod ispitanika koji imaju regularan odgovor srčane frekvence.
Ključne reči:
Anaerobni prag, Conconi test, Defleksija srčane frekvence
