title: Maximal constant heart rate--a heart rate based method to estimate maximal lactate steady state in running.
abstract: The aim of the present study was to investigate the accuracy of the maximal constant heart rate method for predicting anaerobic threshold (AnT) in running. This method only requires a common heart rate (HR) monitor and is based on the identification of the maximal constant HR maintainable for 30 min (HRMC). HRMC, 4-mmol threshold, and maximal lactate steady state (MLSS) were determined in 31 probands. 17 probands underwent an additional MLSS retest within 2 weeks. The correlation between HR at MLSS and at MLSS retest was very close (r = 0.807; SEE = 5.25 beats x min(-1); p < 0.001). So were the correlations between HR at 4-mmol threshold and MLSS (r = 0.844; SEE = 6.43 beats x min(-1); p < 0.001) and between HRMC and HR at MLSS (r = 0.820; SEE = 6.73 beats x min(-1); p < 0.001). Mean velocities at maximum constant HR trials and MLSS (r = 0.895; SEE = 0.185 m x s(-1); p < 0.001) as well as 4-mmol threshold and MLSS (r = 0.899; SEE = 0.186 m x s(-1); p < 0.001) were highly correlated. In conclusion, data presented in this study confirm that the determination of HRMC is a manageable method giving a highly accurate estimation of both HR and velocity at MLSS in running.
authors.affiliation: Sportmedizin Universität Bielefeld, Germany. christian.vobejda@uni-bielefeld.de
authors.forename: C
authors.initials: C
authors.lastname: Vobejda
authors.forename: K
authors.initials: K
authors.lastname: Fromme
authors.forename: W
authors.initials: W
authors.lastname: Samson
authors.forename: E
authors.initials: E
authors.lastname: Zimmermann
mesh_terms: D000328:Adult; D015308:Anaerobic Threshold / Q000502:physiology*; D005080:Exercise Test; D005260:Female; D006339:Heart Rate / Q000502:physiology*; D006801:Humans; D019344:Lactic Acid / Q000097:blood*; D008297:Male; D012420:Running / Q000502:physiology*
chemical_list: D019344:Lactic Acid