What the study found
Overload coincided with lower average HRV, worse stress tolerance and poorer intermittent-running performance; several measures returned toward baseline during the taper.
Participants and protocol
Sixteen under-19 soccer players were monitored through two weeks of overload and one taper week, using daily HRV, perceived load and questionnaires.
What this cannot establish
This short team-sport study does not establish an HRV cutoff or prove that intentionally overloading an endurance athlete will improve performance. Individual symptoms remain important.
Publication details
- Record
- PubMed 30908376
- Indexed subjects
- Exercise Test · Psychometrics · Adaptation, Physiological · Heart Rate · Exercise Tolerance
- Source record checked
- 2026-10-18
Publication type and subject indexing describe the record; they are not a quality grade or proof of a benefit. An abstract does not replace a review of the full methods and results.
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Performance Science Lab
Research summaries for endurance athletes, with study context, practical protocols, and clear limitations.
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