Inspiratory Muscle Warm-Up in Combat Athletes
Trial statusRecruiting
Trial phaseNot applicable
Trial typeInterventional
Biological sexAll
Age15-22
SponsorOndokuz Mayıs University
About this trial
The aim of this study is to investigate the effects of inspiratory muscle warm-up (IMW) on technical performance and physiological responses in combat athletes. A total of 20 volunteer athletes (10 males, 10 females), aged 15-22 years, registered with the Turkish Kickboxing and Muay Thai Federation, with at least two years of licensed sports experience and medal achievements at the national or international level, will be included in the study. The study will be conducted using a placebo-controlled, randomized, double-blind, crossover experimental design, in which participants will complete the control (general warm-up), placebo (15% MIP), and IMW (40% MIP) conditions in a random order.
In each session, before and after the warm-up, pulmonary function tests (FVC, FEV1, FEV1/FVC, PEF), respiratory muscle strength (MIP, MEP), heart rate, perceived exertion, and dyspnea levels will be assessed. In addition, athletes will perform the Kickboxing Fitness Test (KFT), and the same measurements will be repeated during the rest intervals of the test and immediately after its completion. The IMW protocol will be performed using a POWERbreathe device at 40% of MIP, consisting of 2 sets of 30 breaths. Furthermore, maximal oxygen uptake (VO₂max) tests will be conducted to evaluate the athletes' general physiological capacity. This study is expected to provide original data for the field of sports sciences by demonstrating the potential contributions of inspiratory muscle warm-up to the improvement of technical skills and physiological capacity in combat athletes, and to generate practical scientific recommendations for coaches and athletes.
Eligibility criteria
This trial accepts healthy volunteersQualifiers
Male and female combat athletes aged 15 to 22 years
Registered with the Turkish Kickboxing and Muay Thai Federation
Regularly engaged in training
At least 2 years of licensed sports experience
Disqualifiers
Presence of respiratory disease
Presence of cardiopulmonary disease
Trial design
Design model
Crossover
Treatments tested in this trial
POWERbreathe
DeviceInspiratory muscle warm-up will be performed using a POWERbreathe device at 40% of maximal inspiratory pressure (MIP), consisting of 2 sets of 30 breaths before the test procedures.
POWERbreathe
DeviceParticipants will perform sham inspiratory muscle warm-up using a POWERbreathe device at 15% of maximal inspiratory pressure (MIP) before the test procedures.
Treatment groups
20 Participants
are divided into 3 treatment groupsGroup A: Sham Inspiratory Muscle Warm-UpSham comparator 1 intervention
Group B: Standard Warm-Up ProtocolNo intervention 0 interventions
Group C: Inspiratory muscle warm-upExperimental treatment 1 intervention
Trial outcomes
Primary outcomes
1
Kickboxing Fitness Test performance
The Kickboxing Fitness Test is a valid and reliable field-based assessment designed to evaluate sport-specific technical skills and anaerobic performance in kickboxers.The test consists of 3 rounds of 2 minutes each, separated by 1 minute of passive recovery. In each round, athletes complete four 30-second technical sections involving punch and kick combinations, with 10 m running between stations, while aiming to perform each technique with maximal speed and accuracy.
Time frame
Across 3 study days, measured immediately after each intervention session.2
Forced Vital Capacity (FVC)
This is the maximum total volume of air that can be forcibly exhaled after taking the deepest possible breath in.
Time frame
Across 3 study days, at baseline, immediately after the 15-minute standard warm-up, immediately before and after the intervention, during each 1-minute rest interval of the Kickboxing Fitness Test (every 2 minutes), and immediately after the test3
Forced Expiratory Volume in 1 Second (FEV1)
This is the volume of air that can be forcibly exhaled from the lungs in the first second of a pulmonary function test.
Time frame
Across 3 study days, at baseline, immediately after the 15-minute standard warm-up, immediately before and after the intervention, during each 1-minute rest interval of the Kickboxing Fitness Test (every 2 minutes), and immediately after the test4
Ratio of Forced Expiratory Volume in 1 Second to Forced Vital Capacity (FEV1/FVC)
This is the ratio of forced expiratory volume in 1 second (FEV1) to forced vital capacity (FVC), used to assess airflow limitation during pulmonary function testing.
Time frame
Across 3 study days, at baseline, immediately after the 15-minute standard warm-up, immediately before and after the intervention, during each 1-minute rest interval of the Kickboxing Fitness Test (every 2 minutes), and immediately after the testSponsors and contacts
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Source ClinicalTrials.gov