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Combined Inspiratory Muscle Training and Functional High-Intensity Interval Training in Boys With Obesity
Sponsor: Gümüşhane Universıty
Summary
Childhood obesity is associated with reduced cardiorespiratory fitness, impaired exercise tolerance, and altered respiratory mechanics. This randomized controlled trial investigated whether combining inspiratory muscle training with functional high-intensity interval training improves diaphragm morphology, respiratory muscle strength, pulmonary function, aerobic fitness, and functional exercise capacity in boys with obesity. Fifty boys aged 10-12 years were randomly assigned to six weeks of combined inspiratory muscle training and functional high-intensity interval training or usual activity.
Official title: Combined Inspiratory Muscle Training and Functional High-Intensity Interval Training Promote Respiratory, Diaphragmatic, and Aerobic Adaptations in Children With Obesity
Key Details
Gender
MALE
Age Range
10 Years - 12 Years
Study Type
INTERVENTIONAL
Enrollment
50
Start Date
2026-10-20
Completion Date
2026-12-20
Last Updated
2026-09-09
Healthy Volunteers
Yes
Conditions
Interventions
Inspiratory Muscle Training
Inspiratory muscle training was performed using a threshold pressure-loading device (POWERbreathe). Participants trained once daily, five days per week, for six consecutive weeks. Each session consisted of two sets of 30 inspiratory efforts. Training began at 30% of maximal inspiratory pressure in week 1, with the training load progressively increased by 5% each week to reach 55% of maximal inspiratory pressure in week 6. Training pressure was reassessed weekly, and all sessions were supervised by a certified exercise specialist.
Functional High-Intensity Interval Training
Functional high-intensity interval training was performed three times per week on non-consecutive days for six weeks. Each session lasted approximately 35-40 minutes and consisted of an approximately 8-minute warm-up, a functional high-intensity interval circuit, and an approximately 5-minute cool-down. The circuit included wall sit, incline push-up, seated knee-to-chest exercise, shadow boxing, Superman exercise, and low-step-up exercise. Training intensity was progressively increased by manipulating work-to-rest ratios and the number of circuit cycles. Perceived exertion was monitored using the Borg CR-10 scale.
Locations (1)
Gumushane Üniversity
Trabzon, Gümüşhane Province, Turkey (Türkiye)