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Acute Effects of Functional Inspiratory Muscle Training in Elite Male Volleyball Players
Sponsor: Gazi University
Summary
This randomized controlled trial evaluates the acute effects of a single session of functional inspiratory muscle training on muscle oxygenation, exercise capacity, dynamic balance, and agility in elite male volleyball players aged 18 to 25 years. Thirty participants will be randomly assigned in a 1:1 ratio to an intervention group or a no-intervention control group. The intervention group will perform 60 resisted breaths at 50% of maximal inspiratory pressure using a POWERbreathe device during a sport-specific fixed-ball throwing drill. Both groups will complete assessments before and immediately after the intervention period on the same day. Quadriceps muscle oxygen saturation and total hemoglobin will be measured using a Moxy near-infrared spectroscopy monitor during the Incremental Shuttle Walk Test. Exercise capacity, dynamic balance, and agility will be assessed using the Incremental Shuttle Walk Test, Star Excursion Balance Test, and T-Test, respectively.
Official title: Acute Effects of Functional Inspiratory Muscle Training on Exercise Capacity, Muscle Oxygenation, Balance, and Agility in Elite Male Volleyball Players
Key Details
Gender
MALE
Age Range
18 Years - 25 Years
Study Type
INTERVENTIONAL
Enrollment
30
Start Date
2026-05-01
Completion Date
2027-06-01
Last Updated
2026-08-13
Healthy Volunteers
No
Conditions
Interventions
Functional Inspiratory Muscle Training With POWERbreathe
A POWERbreathe pressure-threshold inspiratory muscle training device is used during a sport-specific fixed-ball throwing drill after warm-up. Before training, maximal inspiratory pressure is measured using a mouth pressure meter. The device resistance is individualized at 50% of maximal inspiratory pressure. Participants complete two sets of 30 resisted inspirations, totaling 60 breaths, over approximately 10 to 12 minutes. Expiration is unrestricted. The intervention is delivered once.
Locations (1)
Gazi University Faculty of Health Sciences Department of Cardiopulmonary Physiotherapy and Rehabilitation, Ankara, Çankaya 06490
Ankara, Ankara, Turkey (Türkiye)