Study note • PMID 40198824
Heart rate variability of interventional cardiology fellows and attendings and changes over time.
How to use this page
This note summarizes one study record. Check the participants, methods, results, and limitations before applying it to training.
- • Design signal: controlled study.
- • Population relevance: mixed/unclear athlete specificity.
- • Consistency: single-study evidence.
- • Practical recommendation depends on tolerance, context, and whether it protects training consistency.
ELI5
In plain language
The levels of stress experienced by interventional cardiologists (IC) while performing procedures are not well known. (controlled study; participants).
The abstract reports an association involving Recovery speed (not necessarily causation). Treat this as a signal, not a guarantee; confirm methods and context in the full paper.
Takeaways
What the abstract suggests
- • Study question: The levels of stress experienced by interventional cardiologists (IC) while performing procedures are not well known.
- • The abstract reports an association involving Recovery speed (not necessarily causation).
- • Population: participants.
- • Protocol cues (title/abstract): 14 days.
Protocol
Protocol (as reported)
- • Intervention/exposure: heart rate variability, hrv (vs comparison group).
- • Dose/time/duration cues in abstract/title: 14 days.
- • Outcomes: Recovery speed.
- • Replication note: abstracts often omit adherence and timing; confirm details before changing training or supplementation.
Fit
Who it may help, and who should be cautious
Who it helps
- • Athletes similar to the study population (participants) working on monitoring.
- • Athletes who can measure Recovery speed with a repeatable workout or time-trial effort.
Who should be cautious
- • 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: participants.
- • Comparator: comparison group.
- • Outcomes measured: Recovery speed.
- • Protocol cues mentioned: 14 days.
- • Source: PubMed PMID 40198824 (2025) — The Journal of invasive cardiology.
Results excerpt
What the abstract reports
“The median LF/HF ratio during procedures was significantly higher than at baseline (6.2 vs 4.1, P less than .001).”
Note: excerpts are short; for full context, read the paper.
Limits
Limitations and 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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Performance Science Lab
Research summaries for endurance athletes, with study context, practical protocols, and clear limitations.
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