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Monitoring the Heart Rate Variability Responses to Training Loads in Competitive Swimmers Using a Smartphone Application and the Banister Impulse-Response Model.

PMID 33561815 (2021): heart rate variability, hrv — Recovery speed (study note for endurance athletes).

Last updated/Feb 23, 2026, 11:13 PM

Study note • PMID 33561815

Monitoring the Heart Rate Variability Responses to Training Loads in Competitive Swimmers Using a Smartphone Application and the Banister Impulse-Response Model.

International journal of sports physiology and performance2021 • DOI 10.1123/ijspp.2020-0201
Evidence C58/100
Action 2: Consider

Worth trying if it fits your goal and context.

ELI5

In plain language

First, to examine whether heart rate variability (HRV) responses can be modeled effectively via the Banister impulse-response model when the session rating of perceived exertion (sRPE) alone, and in… (controlled study; trained participants).

The abstract doesn’t indicate a clear change in Recovery speed under the tested conditions. Treat this as a signal, not a guarantee; confirm methods and context in the full paper.

Takeaways

What the abstract suggests

  • Study question: First, to examine whether heart rate variability (HRV) responses can be modeled effectively via the Banister impulse-response model when the session rating of perceived exertion (sRPE) alone, and in…
  • The abstract doesn’t indicate a clear change in Recovery speed under the tested conditions.
  • Population: trained participants.
  • Protocol cues (title/abstract): 15 weeks.

Protocol

Protocol (as reported)

  • Intervention/exposure: heart rate variability, hrv.
  • Dose/time/duration cues in abstract/title: 15 weeks.
  • Outcomes: Recovery speed.
  • Replication note: abstracts often omit adherence and timing; confirm details before changing training or supplementation.

Fit

Who it helps, and who should skip it

Who it helps

  • Athletes similar to the study population (trained participants) working on monitoring.
  • Athletes who can measure Recovery speed with a repeatable workout or time-trial effort.

Who should skip

  • If you have symptoms or conditions that make the intervention risky, get professional guidance.
  • If you’re near race day and can’t safely test, defer the experiment.

Methods

What the study actually did

  • Design: controlled study.
  • Population: trained participants.
  • Outcomes measured: Recovery speed.
  • Protocol cues mentioned: 15 weeks.
  • Source: PubMed PMID 33561815 (2021) — International journal of sports physiology and performance.

Results excerpt

What the abstract reports

The level of agreement between predicted and actual HRV data was R2 = .66 (.25) when sRPE alone was used.

Note: excerpts are short; for full context, read the paper.

Limits

Limitations & bias

  • Abstract-only summaries can miss critical details (population, protocol, adherence, and context).
  • Single studies often don’t generalize to your event, history, and training load; treat results as a starting point.
  • If your context differs (elite vs recreational; cycling vs running), adjust expectations and be conservative.
  • This is performance information, not medical advice.

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Sources