Warm-up of the Inspiratory Musculature and Its Impact in Swimming Performance
Starting soon · Not applicable
Conditions studied: Swimming, IMT
In brief
Objective To evaluate the acute effect of four inspiratory warm-up intensities (15%, 40%, 60%, and 80% of maximal inspiratory pressure \[MIP\]) on 100 m freestyle performance, and to analyze their impact on heart rate, blood lactate concentration, perceived exertion, and dyspnea in trained swimmers. Methods A randomized, crossover, double-blind experimental study was conducted. Participants were swimmers aged ≥18 years, with no respiratory or musculoskeletal pathology. Each participant completed, in sessions separated by at least three days, an inspiratory muscle warm-up consisting of 30 breaths against resistive loads set at 15%, 40%, 60%, and 80% of their MIP, previously determined using standardized procedures. Following each intervention, participants performed a maximal 100 m freestyle test. The following variables were recorded: Swimming time Heart rate (during and post-exercise) Post-exercise capillary blood lactate concentration Rating of perceived exertion (Borg scale) Dyspnea (Dyspnea-12) Conclusions This study will help identify the optimal inspiratory warm-up intensity to enhance swimming performance.
Key facts
- Study ID
- NCT07595328
- Run by
- Universidad Rey Juan Carlos
- People needed
- 52
- Starts
- 2026-09-01
- Expected to finish
- 2027-01-01
- Last updated by the study team
- 2026-05-19
Who can join
Age: 18 and older. Sex: any. Healthy volunteers: accepted.
You may qualify if…
- Participants of both sexes, aged over 18 years.
- Minimum swimming training frequency of at least two sessions per week, with a minimum duration of 30 minutes per session, consistently maintained over the last three months.
You may not qualify if…
- Current or previous diagnosis of respiratory diseases.
- Musculoskeletal injuries limiting the ability to perform a 100-meter swimming test.
- Participation in inspiratory muscle training programs within the last six months.
Full record on ClinicalTrials.gov
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