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Study identifier: NCT06807957 Synced from ClinicalTrials.gov · July 28, 2026
● Recruiting

Inspiratory Muscle Training in Amateur CrossFit® Athletes

Condition: Healthy  ·  Sponsor: Federal University of the Valleys of Jequitinhonha and Mucuri

PhaseNA
Planned participants94
Who can joinAll sexes, 18 Years to 60 Years
Healthy volunteersYes

About this study

The aim of this randomized controlled trial is to investigate the effectiveness of inspiratory muscle training (IMT) on the performance of athletes in CrossFit® activities, respiratory muscle strength, and perceived post-training fatigue. This study follows a two-arm randomized controlled trial protocol. Ninety-four volunteers aged between 18 and 60 years, enrolled in CrossFit® training, will be randomly allocated to the IMT Group, which involves respiratory training using a linear load device (Powerbreathe®) in conjunction with CrossFit® training; or the Non-IMT Group, which undergoes the same training as the intervention group but uses a device without a valve that ensures resistance. The primary outcome is to investigate the effectiveness of IMT: on maximum inspiratory pressure and maximum expiratory pressure. The secondary outcomes include performance in the six-minute walk test, Pistol, Burpee, Sit-up, Box Jump, Thruster, and Single-Under, burning 25 calories on the "Air Bike" measured by the time taken to reach the 25-calorie mark on this equipment, as well as the assessment of subjective fatigue perception. All outcomes of interest will be collected at baseline and reassessed: mid-term (8 weeks after allocation); and long-term (12 weeks after allocation), the IMT and MEP will be reassessed. Analyses will follow the intention-to-treat principle. Treatment effects will be assessed using Linear Mixed Models. The results of this study may help clarify the effects of IMT on…

This description comes directly from the study's public registry record.

Talk to the study team

Diego M Xavier, PhD student  ·  +55 31 997106999  ·  diegomendesxav@gmail.com

Murilo X Oliveira, Pdh  ·  +55 38 9996-0002  ·  murilo.xavier@ufvjm.edu.br

Always discuss trial participation with your own doctor first.

Locations (1)

Academia Compasso - KapuraSete Lagoas, Minas Gerais, BrazilRecruiting

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Source record: clinicaltrials.gov/study/NCT06807957