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Putative Role of Respiratory Muscle Training to Improve Endurance Performance in Hypoxia: A Review.

PMID 30697170 (2018): inspiratory muscle training, respiratory — Time to exhaustion (study note for endurance athletes).

Last updated/Feb 23, 2026, 10:34 PM

Study note • PMID 30697170

Putative Role of Respiratory Muscle Training to Improve Endurance Performance in Hypoxia: A Review.

Frontiers in physiology2018 • DOI 10.3389/fphys.2018.01970
Evidence C60/100
Action 2: Consider

Worth trying if it fits your goal and context.

ELI5

In plain language

Respiratory/inspiratory muscle training (RMT/IMT) has been proposed to improve the endurance performance of athletes in normoxia. (review; well-trained cyclists).

Results section: no 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: Respiratory/inspiratory muscle training (RMT/IMT) has been proposed to improve the endurance performance of athletes in normoxia.
  • Results section: no clear change in Time to exhaustion under the tested conditions.
  • Population: well-trained cyclists.
  • Protocol cues (full paper): 6 weeks • 5 days • 7 days • 4 weeks • 8 weeks.

Protocol

Protocol (as reported)

  • Intervention/exposure: inspiratory muscle training, respiratory.
  • Dose/time/duration cues found in the full paper: 6 weeks • 5 days • 7 days • 4 weeks • 8 weeks.
  • Outcomes: Time to exhaustion.
  • 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 (well-trained cyclists) working on breathing.
  • Athletes who can measure Time to exhaustion 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: review (placebo-controlled).
  • Population: well-trained cyclists.
  • Outcomes measured: Time to exhaustion.
  • Protocol cues mentioned: 8 weeks.
  • Source: PubMed PMID 30697170 (2018) — Frontiers in physiology.

Full paper

What the full paper adds

  • Design features (paper): placebo-controlled.
  • Participants (paper): well-trained cyclists.
  • More protocol detail (paper): 6 weeks • 5 days • 7 days • 4 weeks • 8 weeks.
  • Results section: no clear change in Time to exhaustion under the tested conditions.

Results excerpt

What the abstract reports

In conclusion, RMT was found to elicit general positive effects mainly on respiratory efficiency and breathing patterns, lower dyspneic perceptions and improved physical performance in conditions of hypoxia.

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).
  • Reviews and consensus statements mix protocols and populations; recommendations may not match your exact constraints.
  • 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