In:
Canadian Journal of Applied Physiology, Canadian Science Publishing, Vol. 26, No. 1 ( 2001-02-01), p. 1-11
Abstract:
Peak aerobic exercise responses were determined in 8 competitive cross-country skiers during field-testing and during an incremental treadmill test (TM) to determine peak oxygen uptake [Formula: see text], heart rate, and oxygen pulse. Field testing consisted of maximal effort roller skiing using diagonal stride (DS) and double poling (DP) techniques. [Formula: see text] was measured during roller skiing by the portable Cosmed K4b 2 breath-by-breath system. The portable system was compared against a standard laboratory mixing box system, and no differences were found across the full range of [Formula: see text]. During DS, [Formula: see text] and oxygen pulse were not different from TM, whereas peak HR was lower. With DP, [Formula: see text] and oxygen pulse were less than DS or TM, whereas peak HR was less than with TM but not different from DS. These results demonstrate the validity and utility of the portable breath-by-breath system for measurement of aerobic energy demand of athletes as they carry out their normal activity. Key words: oxygen uptake, oxygen pulse, Cosmed K4b 2 , athlete
Type of Medium:
Online Resource
ISSN:
1066-7814
Language:
English
Publisher:
Canadian Science Publishing
Publication Date:
2001
SSG:
31
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