Study note • PMID 23233798
Effects of inspiratory muscle training on dynamic hyperinflation in patients with COPD.
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
Dynamic hyperinflation has important clinical consequences in patients with chronic obstructive pulmonary disease (COPD). (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: Dynamic hyperinflation has important clinical consequences in patients with chronic obstructive pulmonary disease (COPD).
- • The abstract doesn’t indicate a clear change in Time to exhaustion under the tested conditions.
- • Population: participants.
- • Protocol cues (title/abstract): 8 weeks.
Protocol
Protocol (as reported)
- • Intervention/exposure: inspiratory muscle training, respiratory (vs control group).
- • Dose/time/duration cues in abstract/title: 8 weeks.
- • 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.
- • Population: participants.
- • Comparator: control group.
- • Outcomes measured: Time to exhaustion.
- • Protocol cues mentioned: 8 weeks.
- • Source: PubMed PMID 23233798 (2012) — International journal of chronic obstructive pulmonary disease.
Results excerpt
What the abstract reports
“No significant changes during either exercise tests were measured in the control group.”
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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