Skip to content

The effects of inspiratory muscle training on exercise performance in chronic airflow limitation.

PMID 7224355 (1981): inspiratory muscle training — Time to exhaustion (study note for endurance athletes).

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

Study note • PMID 7224355

The effects of inspiratory muscle training on exercise performance in chronic airflow limitation.

The American review of respiratory disease1981 • DOI 10.1164/arrd.1981.123.4.426
Evidence C60/100
Action 2: Consider

Worth trying if it fits your goal and context.

ELI5

In plain language

Using a simple, inexpensive, at-home program, 12 patients with moderate-to-severe chronic air flow limitation trained their inspiratory muscles. (controlled study; trained participants).

The abstract suggests a positive effect on 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: Using a simple, inexpensive, at-home program, 12 patients with moderate-to-severe chronic air flow limitation trained their inspiratory muscles.
  • The abstract suggests a positive effect on Time to exhaustion under the tested conditions.
  • Population: trained participants.
  • Protocol cues (title/abstract): 2 months • 12 min.

Protocol

Protocol (as reported)

  • Intervention/exposure: inspiratory muscle training.
  • Dose/time/duration cues in abstract/title: 2 months • 12 min.
  • 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 (trained participants) 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: controlled study.
  • Population: trained participants.
  • Outcomes measured: Time to exhaustion.
  • Protocol cues mentioned: 2 months • 12 min.
  • Source: PubMed PMID 7224355 (1981) — The American review of respiratory disease.

Results excerpt

What the abstract reports

All showed increased inspiratory muscle endurance with no change in inspiratory muscle strength.

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.

Coaching beta

Get a plan that adapts to your life.

Join the 26weeks.ai TestFlight beta for adaptive coaching, recovery-aware adjustments, and race-week reminders.

Keep going

Sources