Study note • PMID 33668012
Moderate- and High-Intensity Inspiratory Muscle Training Equally Improves Inspiratory Muscle Strength and Endurance-A Double-Blind Randomized Controlled Trial.
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
Inspiratory muscle training (IMT) produced outstanding results in the physical performance of active subjects; however, little is known about the best training intensity for this population. (randomized trial; n=8 recreational cyclists).
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: Inspiratory muscle training (IMT) produced outstanding results in the physical performance of active subjects; however, little is known about the best training intensity for this population.
- • The abstract doesn’t indicate a clear change in Time to exhaustion under the tested conditions.
- • Population: n=8 recreational cyclists.
- • Protocol cues (title/abstract): 11 weeks • 55 min.
Protocol
Protocol (as reported)
- • Intervention/exposure: inspiratory muscle training (vs comparison group).
- • Dose/time/duration cues in abstract/title: 11 weeks • 55 min.
- • 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 (n=8 recreational cyclists) 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: n=8 recreational cyclists.
- • Comparator: comparison group.
- • Outcomes measured: Time to exhaustion.
- • Protocol cues mentioned: 11 weeks • 55 min.
- • Source: PubMed PMID 33668012 (2021) — International journal of sports physiology and performance.
Results excerpt
What the abstract reports
“IMS increased in CIP and MIP60 groups at the ninth and 13th weeks compared with the sham group (P < .001; beta = 0.99).”
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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