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JOURNAL
OF
SPORTS SCIENCE &
MEDICINE
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Research
article
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VALIDITY OF THE MODIFIED CONCONI TEST FOR DETERMINING VENTILATORY THRESHOLD DURING ON-WATER ROWING |
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Jorge Villamil Cabo1  ,
Pablo Martinez-Camblor2 and Miguel del Valle3 |
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1Sport Medicine School, University of Oviedo, Spain 2Biosanitary Research Office of Asturias 3Sport Medicine School, University of Oviedo, Spain |
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© Journal of Sports Science and Medicine (2011) 10, 616 - 623 |
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| ABSTRACT | |||
| The objectives of this study were to design a field test based
on the Conconi protocol to determine the ventilatory threshold of rowers
and to test its reliability and validity. A group of sixteen oarsmen completed
a modified Conconi test for on-water rowing. The reliability of the detection
of the heart rate threshold was evaluated using heart rate breaking point
in the Conconi test and retest. Heart rate threshold was detected in 88.8%
of cases in the test-retest. The validity of the modified Conconi test was
evaluated by comparing the heart rate threshold data acquired with that
obtained in a ventilatory threshold test (VT2). No significant differences
were found for the values of different intensity parameters i.e. heart rate
(HR), oxygen consumption (VO2), stroke rate (SR) and speed (S)
between the heart rate threshold and the ventilatory threshold, (170.9 ±
6.8 vs. 169.3 ± 6.4 beats·min-1; 42.0 ± 8.6 vs. 43.5 ± 8.3 ml·kg-1·min-1;
25.8 ± 3.3 vs. 27.0 ± 3.2 strokes·min-1 and 14.4 ± 0.8 vs. 14.6
± 0.8 km·h-1). The differences in averages obtained in the Conconi test-retest
were small with a low standard error of the mean. The reliability data between
the Conconi test-retest showed low coefficients of variations (CV) and high
intraclass correlation coefficients (ICC). The total errors for the Conconi
test-retest are low for the measured variables (1.31 HR, 0.87 VO2,
0.65 SR, and 0.1 S). The Bland- Altman's method for analysis validity showed
a strong concordance according to the analyzed variables. We conclude that
the modified Conconi test for on-water rowing is a valid and reliable method
for the determination of the second ventilatory threshold (VT2). Key words: Field test, anaerobic threshold heart rate, ventilatory threshold.. |
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