Relationship Between Blood Lactate Response to Exercise and Endurance Performance in Competitive Female Master Cyclists

Autor: J F Nichols, M J Buono, S L Phares
Rok vydání: 1997
Předmět:
Zdroj: International Journal of Sports Medicine. 28:458-463
ISSN: 1439-3964
0172-4622
DOI: 10.1055/s-2007-972664
Popis: The blood lactate response to graded exercise and its relationship to performance in the field was examined in highly competitive female master cyclists. Thirteen women, age 47.5+/-2.2yr (mean+/-SE), all of whom were United States Cycling Federation (USCF) competitors, underwent laboratory testing for aerobic capacity (VO2max) and lactate threshold (LT), and field testing for performance in 13.5 km and 20 km time-trials. The mean VO2max of the subjects (50.6+/-2.7 ml x kg(-1) x min[-1]) was approximately 10% higher than that previously reported for other age-matched female athletes and correlated moderately (r=-0.67) with age. Maximal heart rate was unrelated to age (r=-0.25, p>0.05). Blood lactate concentration (BLC) while time-trialing was significantly higher than that at the LT (2.86+/-0.17 mmol x l[-1]) for both the 13.5 km (7.59 mmol x l(-1), p < 0.0001), and the 20 km trials (6.99 mmol x l(-1), p
Databáze: OpenAIRE
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