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The Effects of Guided Imagery on Heart Rate Variability in Simulated Spaceflight Emergency Tasks Performers.

PMID 26137491 (2015): heart rate variability, hrv — Recovery speed (study note for endurance athletes).

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

Study note • PMID 26137491

The Effects of Guided Imagery on Heart Rate Variability in Simulated Spaceflight Emergency Tasks Performers.

BioMed research international2015 • DOI 10.1155/2015/687020
Evidence C56/100
Action 2: Consider

Worth trying if it fits your goal and context.

ELI5

In plain language

The present study aimed to investigate the effects of guided imagery training on heart rate variability in individuals while performing spaceflight emergency tasks. (controlled study; n=11 participants).

Effects on Recovery speed are mixed or unclear from the abstract alone. Treat this as a signal, not a guarantee; confirm methods and context in the full paper.

Takeaways

What the abstract suggests

  • Study question: The present study aimed to investigate the effects of guided imagery training on heart rate variability in individuals while performing spaceflight emergency tasks.
  • Effects on Recovery speed are mixed or unclear from the abstract alone.
  • Population: n=11 participants.
  • Protocol cues: abstract may omit dose/timing; use the full paper to replicate accurately.

Protocol

Protocol (as reported)

  • Intervention/exposure: heart rate variability, hrv (vs control group).
  • Dose/time/duration: abstract doesn’t include enough detail; use the full paper’s methods section.
  • 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 (n=11 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: n=11 participants.
  • Comparator: control group.
  • Outcomes measured: Recovery speed.
  • Source: PubMed PMID 26137491 (2015) — BioMed research international.

Results excerpt

What the abstract reports

Moreover, LF/HF of the subjects after instructor-guided imagery training was lower than that after self-guided imagery training.

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