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Related Experiment Videos

Heart rate and performance parameters in elite cyclists: a longitudinal study.

A Lucía1, J Hoyos, M Pérez

  • 1Departamento de Ciencias Morfológicas y Fisiología, Universidad Europea de Madrid, Spain. alejandro.lucia@mrfs.cisa.uem.es

Medicine and Science in Sports and Exercise
|October 20, 2000
PubMed
Summary

Target heart rate (HR) values for performance markers like lactate threshold (LT) and ventilatory thresholds (VT1, VT2) remained stable in professional cyclists throughout the season. This stability suggests a single lab test may suffice for prescribing training loads.

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Area of Science:

  • Sports Physiology
  • Exercise Science
  • Cardiovascular Research

Background:

  • Elite endurance athletes require precise training load prescription.
  • Heart rate (HR) is a common metric for monitoring training intensity.
  • Performance markers like lactate threshold (LT) and ventilatory thresholds (VT1, VT2) are key indicators of physiological capacity.

Purpose of the Study:

  • To assess the stability of HR values associated with LT, VT1, and VT2 in professional road cyclists across a full season.
  • To determine if HR-based training prescriptions remain valid despite performance improvements.

Main Methods:

  • 13 professional cyclists (VO2max ~75.0 mL x kg(-1) x min(-1)) underwent incremental cycling tests.
  • Tests were conducted three times during the season: active rest (November), precompetition (January), and competition (May).

Related Experiment Videos

  • HR at LT, VT1, and VT2 were determined using a ramp protocol.

    • Main Results:

    • Performance improved significantly throughout the season, indicated by higher power outputs at LT, VT1, and VT2.
    • Despite performance gains, target HR values at LT, VT1, and VT2 demonstrated remarkable stability across the testing periods.
    • HR at LT: 154 ± 3, 152 ± 3, 154 ± 2 bpm; VT1: 155 ± 3, 156 ± 3, 159 ± 3 bpm; VT2: 178 ± 2, 173 ± 3, 176 ± 2 bpm.

    Conclusions:

    • A single laboratory assessment early in the season may be adequate for HR-based training load prescription in elite cyclists.
    • This finding could simplify the typically intensive testing schedules for professional endurance athletes.
    • Stable HR at key performance markers supports the use of HR monitoring for consistent training intensity guidance.