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Non-invasive Indices for the Estimation of the Anaerobic Threshold of Oarsmen
Oleh:
Erdogan, A
;
Cetin, C
;
Karatosun, H
Jenis:
Article from Journal - ilmiah internasional
Dalam koleksi:
The Journal of International Medical Research vol. 38 no. 03 (Mei 2010)
,
halaman 901-915.
Topik:
sports physiology
;
rowers
;
anaerobic threshold
;
conconi test
;
rowing ergometer
;
heart rate deflection point
;
respiratory gas exchange
Ketersediaan
Perpustakaan FK
Nomor Panggil:
J11.K.2010.02
Non-tandon:
1 (dapat dipinjam: 0)
Tandon:
tidak ada
Lihat Detail Induk
Isi artikel
This study compared four common non-invasive indices with an invasive index for determining the anaerobic threshold (AT) in 22 adult male rowers using a Concept2 rowing ergometer. A criterion-standard progressive incremental test (invasive method) measured blood lactate concentrations to determine the 4 mmol/l threshold (La4-AT) and Dmax AT (Dm-AT). This was compared with three indices obtained by analysis of respiratory gases and one that was based on the heart rate (HR) deflection point (HRDP) all of which used the Conconi test (non-invasive methods). In the Conconi test, the HRDP was determined whilst continuously increasing the power output (PO) by 25 W/min and measuring respiratory gases and HR. The La4-AT and Dm-AT values differed slightly with respect to oxygen uptake, PO and HR however, AT values significantly correlated with each other and with the four non-invasive methods. In conclusion, the non-invasive indices were comparable with the invasive index and could, therefore, be used in the assessment of AT during rowing ergometer use. In this population of elite rowers, Conconi threshold (Con-AT), based on the measurement of HRDP tended to be the most adequate way of estimating AT for training regulation purposes.
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