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Study note

The effect of inspiratory muscle training on high-intensity, intermittent running performance to exhaustion.

PMID 18641709 (2008): inspiratory muscle training — Time to exhaustion (study note for endurance athletes).

Updated Jul 22, 2026

Read the study note

Study note • PMID 18641709

The effect of inspiratory muscle training on high-intensity, intermittent running performance to exhaustion.

Applied physiology, nutrition, and metabolism = Physiologie appliquee, nutrition et metabolisme2008 • DOI 10.1139/H08-050

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: randomized trial.
  • 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 effects of inspiratory muscle (IM) training on maximal 20 m shuttle run performance (Ex) during Yo-Yo intermittent recovery test and on the physiological and perceptual responses to the… (randomized trial; participants).

The abstract doesn’t indicate a clear change in Time to exhaustion 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: The effects of inspiratory muscle (IM) training on maximal 20 m shuttle run performance (Ex) during Yo-Yo intermittent recovery test and on the physiological and perceptual responses to the…
  • The abstract doesn’t indicate a clear change in Time to exhaustion under the tested conditions.
  • Population: participants.
  • Protocol cues (title/abstract): 6 week • 20 m.

Protocol

Protocol (as reported)

  • Intervention/exposure: inspiratory muscle training (vs placebo).
  • Dose/time/duration cues in abstract/title: 6 week • 20 m.
  • Outcomes: Time to exhaustion.
  • 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 breathing.
  • Athletes who can measure Time to exhaustion 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: randomized trial (placebo-controlled).
  • Population: participants.
  • Comparator: placebo.
  • Outcomes measured: Time to exhaustion.
  • Protocol cues mentioned: 6 week • 20 m.
  • Source: PubMed PMID 18641709 (2008) — Applied physiology, nutrition, and metabolism = Physiologie appliquee, nutrition et metabolisme.

Results excerpt

What the abstract reports

In comparison with previous observations that the reduced RPB/4i resulting from IM warm-up was the major reason for improved Ex, the reduced RPB/4i resulting from the IM training program was lower despite the greater enhancement of IM function, whereas improvement in Ex was similar.

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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