Submaximal Blood Lactate and Heart Rate Measurements as Indicators of Training Status in College Distance Runners

G. Patrick Lambert, David L. Costill

Research output: Contribution to journalArticle

Abstract

Seven highly trained male college distance runners were studied throughout a competitive cross-country season. Common laboratory and field measurements were used to assess their physiological adaptation to training. They were tested before (pre), during (mid), and at the end of the competitive season (post) for peak oxygen consumption (V̇O2peak), running economy (RE), fractional utilization of the aerobic capacity (%V̇O2peak), and time to exhaustion (TTE). One or 2 days prior to each scheduled competition, submaximal heart rate (HR) and submaximal blood lactate accumulation (bLa) were determined during a 1.61-km (1 mile) run on an indoor track. Five subjects ran at a 17.6-km·hr-1 pace while the other 2 ran at a 16.1-km·hr-1 pace, which corresponded to an estimated mean (±SE) intensity of 83.1% (±4.4) of preseason V̇O2peak. V̇O2peak, RE, %V̇O2peak, and TTE all improved significantly over the season (p < 0.05). The field measures of HR and bLa remained unchanged during this same period. These results suggest that the field trials employing single HR and single bLa measurements (<80-85% V̇O2peak) were not sensitive to changes in endurance capacity in 7 highly trained distance runners.

Original languageEnglish (US)
Pages (from-to)93-97
Number of pages5
JournalJournal of Strength and Conditioning Research
Volume10
Issue number2
DOIs
StatePublished - Jan 1 1996
Externally publishedYes

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Lactic Acid
Heart Rate
Physiological Adaptation
Oxygen Consumption
rat Ran 2 protein

All Science Journal Classification (ASJC) codes

  • Orthopedics and Sports Medicine
  • Physical Therapy, Sports Therapy and Rehabilitation

Cite this

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abstract = "Seven highly trained male college distance runners were studied throughout a competitive cross-country season. Common laboratory and field measurements were used to assess their physiological adaptation to training. They were tested before (pre), during (mid), and at the end of the competitive season (post) for peak oxygen consumption (V̇O2peak), running economy (RE), fractional utilization of the aerobic capacity ({\%}V̇O2peak), and time to exhaustion (TTE). One or 2 days prior to each scheduled competition, submaximal heart rate (HR) and submaximal blood lactate accumulation (bLa) were determined during a 1.61-km (1 mile) run on an indoor track. Five subjects ran at a 17.6-km·hr-1 pace while the other 2 ran at a 16.1-km·hr-1 pace, which corresponded to an estimated mean (±SE) intensity of 83.1{\%} (±4.4) of preseason V̇O2peak. V̇O2peak, RE, {\%}V̇O2peak, and TTE all improved significantly over the season (p < 0.05). The field measures of HR and bLa remained unchanged during this same period. These results suggest that the field trials employing single HR and single bLa measurements (<80-85{\%} V̇O2peak) were not sensitive to changes in endurance capacity in 7 highly trained distance runners.",
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