跳至主要内容
临床试验/NCT07083258
NCT07083258尚未招募不适用

The Effect of Inspiratory Muscle Training on Respiratory Parameters, Balance, Trunk Endurance and Trunk Isokinetic Muscle Strength in Elite Freestyle Female Wrestling Athletes

Ondokuz Mayıs University1 个研究点 分布在 1 个国家目标入组 30 人开始时间: 2025年12月15日最近更新:

试验速览

阶段
不适用
状态
尚未招募
发起方
入组人数
30
试验地点
1
主要终点
Change in Maximal Inspiratory Pressure (MIP) [cmH₂O]

研究概览

简要总结

Title:

The Effects of Inspiratory Muscle Training on Respiratory Parameters, Balance, Trunk Endurance, and Trunk Isokinetic Muscle Strength in Elite Female Freestyle Wrestlers

Objective:

This experimental study aims to investigate the effects of inspiratory muscle training on respiratory functions, trunk muscle strength, endurance, and balance in elite female freestyle wrestlers.

Methods:

This randomized controlled trial will include 30 elite female freestyle wrestlers aged between 16 and 22. Participants will be randomly assigned to either an intervention group or a placebo control group using a simple randomization method. The intervention group will receive progressive inspiratory muscle training with the POWERbreathe Plus device, 5 days per week for 4 weeks. The training load will increase weekly. The control group will undergo low-resistance inspiratory training set at 15% of their baseline maximal inspiratory pressure (MIP), serving as a placebo. Pre- and post-intervention assessments will be conducted by a blinded evaluator.

详细描述

This study aims to investigate the multifaceted effects of inspiratory muscle training (IMT) on performance parameters in elite female freestyle wrestlers within the field of cardiopulmonary physiotherapy and rehabilitation. Unlike most studies in the sports physiotherapy literature, this research goes beyond respiratory parameters to include key functional outcomes such as balance, trunk endurance, and isokinetic trunk muscle strength.

Scientific Background and Rationale Freestyle wrestling is a physically demanding sport that requires simultaneous, dynamic use of both upper and lower extremities, along with high levels of strength, balance, and coordination. Success in competition is closely linked to factors such as postural stability, core muscle activation, and the ability to generate isometric and dynamic force. However, the contribution of respiratory muscles to athletic performance has often been overlooked or assessed only indirectly in previous studies.

Given the high-intensity and short-duration nature of wrestling matches, increased ventilatory demand places a significant burden on the diaphragm and accessory respiratory muscles. Recent evidence suggests that IMT not only improves pulmonary function but also enhances core stabilization and postural control. Therefore, directly assessing the effects of IMT on respiratory and trunk muscle performance in elite female wrestlers addresses a notable gap in the literature.

Study Design This is a randomized controlled experimental study involving 30 elite female freestyle wrestlers affiliated with the Turkish Olympic Preparation Center (TOHM-Trabzon). Participants will be randomly assigned into two groups (n=15 each) via simple randomization.

The intervention group will undergo IMT using the POWERbreathe Plus device, 5 days per week for 4 weeks. Training will begin at 50% of the participants' MIP and increase by 10% each week, reaching 80% by the final week.

研究设计

研究类型
Interventional
分配方式
Randomized
干预模型
Parallel
主要目的
Supportive Care
盲法
Double (Participant, Outcomes Assessor)

入排标准

年龄范围
16 Years 至 22 Years(Child, Adult)
性别
Female
接受健康志愿者

入选标准

  • To be an athlete in the Freestyle Women's Wrestling branch.
  • Participating in regular training at least 4 days a week.
  • To volunteer to participate in the study.
  • Being an athlete within TOHM for at least one year.
  • To be between the ages of 16-22.

排除标准

  • Have a cardiopulmonary disease that precludes the use of Pulmonary Function Testing.
  • Have specific balance problems (e.g., vestibular or neurological impairment).

结局指标

主要结局

Change in Maximal Inspiratory Pressure (MIP) [cmH₂O]

时间窗: Baseline (Week 0) and Post-intervention (Week 4)

Maximal inspiratory pressure (MIP) will be measured using the Cosmed Pony FX device. This value reflects the strength of inspiratory muscles before and after the intervention.

Change in Maximal Expiratory Pressure (MEP) [cmH₂O]

时间窗: Baseline (Week 0) and Post-intervention (Week 4)

Maximal expiratory pressure (MEP) will be assessed using the Cosmed Pony FX spirometer. It indicates the force generated by expiratory muscles and will be compared pre- and post-training.

Change in Forced Expiratory Volume in 1 Second (FEV1) [liters]

时间窗: Baseline (Week 0) and Post-intervention (Week 4)

FEV1 will be measured using the Cosmed Pony FX to evaluate pulmonary function. The value reflects the volume of air expelled in the first second of a forced exhalation.

Change in Forced Vital Capacity (FVC) [liters]

时间窗: Baseline (Week 0) and Post-intervention (Week 4)

FVC will be assessed with the Cosmed Pony FX device. It measures the total volume of air forcibly exhaled after a full inspiration, used to evaluate lung capacity changes due to training.

Change in FEV1/FVC Ratio [%]

时间窗: Baseline (Week 0) and Post-intervention (Week 4)

The FEV1/FVC ratio will be calculated from pulmonary function testing to assess airway function and efficiency. The ratio will be compared between baseline and after the 4-week intervention.

次要结局

  • Time Held in Trunk Flexion Test [seconds](Baseline (Week 0) and Post-intervention (Week 4))
  • Time Held in Side Plank Test [seconds](Baseline (Week 0) and post-intervention (Week 4))
  • Time Held in Trunk Extension Test [seconds](Baseline (Week 0) and Post-intervention (Week 4))
  • Peak Torque of Trunk Flexors [Nm](Baseline (Week 0) and Post-intervention (Week 4))
  • Peak Torque of Trunk Extensors [Nm](Baseline (Week 0) and Post-intervention (Week 4))
  • Reach Distance in Y Balance Test - Anterior Direction [cm](Baseline (Week 0) and Post-intervention (Week 4))
  • Reach Distance in Y Balance Test - Posteromedial Direction [cm](Baseline (Week 0) and Post-intervention (Week 4))
  • Reach Distance in Y Balance Test - Posterolateral Direction [cm](Baseline (Week 0) and Post-intervention (Week 4))
  • Time Maintained in Flamingo Balance Test [seconds](Baseline (Week 0) and Post-intervention (Week 4))

研究者

发起方
Ondokuz Mayıs University
申办方类型
Other
责任方
Principal Investigator
主要研究者

MİNE PEKESEN KURTÇA

Ass.Prof.

Ondokuz Mayıs University

研究点 (1)

Loading locations...

相似试验