Menu
Not yet recruiting NCT07046637

Acute Effects of Inspiratory Muscle Load on Diaphragmatic Recovery in Athletes

No phase Interventional Sports Physical Therapy Athletic Injuries Healthy

For patients and families

In plain language

An automatic summary of structured registry data. It is an orientation aid, not a substitute for the official protocol or a physician assessment.

What is being studied
The protocol lists: Inspiratory muscle fatigue group, Inspiratory muscle warm-up group.
Who it may be relevant to
Registry conditions: Sports Physical Therapy, Athletic Injuries, Healthy. Basic parameters: 18 years — 35 years · All.
What needs checking
Age, condition and sex are only basic indicators. Prior treatment, laboratory values and other mandatory requirements appear in the eligibility criteria below.
Where it takes place
Center list to be confirmed — check the primary protocol.
Next step
Save the trial, show it to the treating physician, and confirm current recruitment with the study center. Costs, documents and travel →

Unsure about the terms? Read our patient guide →

Official title

Short-Term Effects of Inspiratory Muscle Warm-Up and Fatigue on Diaphragmatic Function in Professional Basketball Players: A Randomized Controlled Trial

Overview

This randomized controlled trial investigates the acute effects of inspiratory muscle warm-up and fatigue on diaphragmatic function in professional basketball players. Using ultrasound imaging and maximal inspiratory pressure (PIM) assessment, the study evaluates changes in diaphragmatic thickness and respiratory strength before and after specific inspiratory muscle loading protocols. Findings aim to clarify the short-term impact of these interventions on diaphragmatic recovery capacity, with potential implications for respiratory training, performance enhancement, and injury prevention strategies in elite athletic populations.

Interventions

  • Device Inspiratory muscle fatigue group
    The subjects will perform deep inspirations against a threshold device with varying resistances
  • Device Inspiratory muscle warm-up group
    The subjects will perform deep inspirations against a threshold device with varying resistances

Primary outcome measures

  • Maximal inspiratory pressure [Time frame: Immediately before intervention, immediately after intervention, 15 minutes post intervention and 30 minutes post intervention]
Secondary outcome measures (1)
  • Diaphragmatic thickness and thickening fraction [Time frame: Immediately before intervention, immediately after intervention, 15 minutes post intervention and 30 minutes post intervention]

Eligibility criteria

Inclusion criteria

  • Male and female professional basketball players aged between 18 and 35 years.
  • Holding a valid federation license at the autonomous or higher competitive level.
  • A minimum of 3 consecutive seasons of competition in official FEB, FIBA, or equivalent regional leagues.
  • Regular training frequency of ≥4 sessions per week over the past 6 months.
  • No previous experience with inspiratory muscle training.
  • Ability to understand study procedures and provide written informed consent.

Exclusion criteria

  • History of chronic respiratory, neuromuscular, or cardiovascular disease.
  • Musculoskeletal injury limiting inspiratory effort or physical participation (current or within the past three months).
  • Previous thoracic or abdominal surgery.
  • Current smokers.
  • Use of pharmacological treatments that could affect respiratory or muscular function.
  • Participation in another interventional study within the past 4 weeks.
  • Inability to understand or follow study instructions.
  • Tympanic membrane perforation or middle/inner ear pathology.
  • Pregnancy or postpartum period within the last 6 months.

Criteria are shown verbatim from the registry (in English). Final eligibility is always assessed by the study center.

Healthy volunteers: Yes

Study design

Allocation
Randomized
Model
Parallel assignment
Masking
Single blind
Primary purpose
Treatment

Study locations

Center list to be confirmed — check the primary protocol.

Publications

  • Ladrinan-Maestro A, Sanchez-Infante J, Rodriguez-Sanz D, Sanchez-Sierra A. Short-term effects of inspiratory muscle warm-up and fatigue on diaphragmatic function in professional basketball players: a randomized clinical trial. Eur J Appl Physiol. 2026 May;126(5):2935-2943. doi: 10.1007/s00421-025-06116-2. Epub 2026 Jan 6. PMID 41493585

Identifiers

NCT: NCT07046637 · 020

Primary sources (government registries)

View this study on ClinicalTrials.gov ↗