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 |
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Rok vydání: | 1997 |
Předmět: |
Adult
medicine.medical_specialty Physical fitness Physical Therapy Sports Therapy and Rehabilitation Physical exercise Oxygen Consumption Animal science Heart Rate Heart rate Humans Medicine Orthopedics and Sports Medicine Lactic Acid Exercise physiology Exercise Cardiovascular fitness Aerobic capacity Aged business.industry Lactate threshold Middle Aged Bicycling Surgery Physical Endurance Female business Exercise prescription human activities |
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 |
Externí odkaz: |
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