This study is being conducted by the Department of Kinesiology within the School of Public Health at Indiana University Bloomington. The purpose of this study is to better understand how inspiratory muscle strength training affects cardiovascular health and mood disturbance in postmenopausal women.
Inspiratory muscle training (IMT) works by strengthening the respiratory muscles through resistive airflow breathing using a handheld device. The goal being to elicit an adaptive response akin to resistance exercise for locomotor muscles. Labored breathing due to respiratory muscle weakness can detract from physical performance with attendant consequences on independent living. This may trigger a maladaptive cycle that worsens physiological and psychosocial outcomes. IMT from 6-10 weeks has been shown to increase maximal inspiratory pressure, functional capacity, and perceived breathlessness across disease states. To inform an appropriately powered randomized controlled trial, the present work proposes a 2-arm single-blind, randomized pilot study to evaluate outcomes of interest.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
DOUBLE
Enrollment
28
The device is used four times a week over a period of 8 weeks.
Indiana University
Bloomington, Indiana, United States
Duration
Duration, reported in seconds, to reach 63% of steady-state V̇O2 during a fixed-workload treadmill task. This technique is performed using breath-by-breath open-circuit spirometry and captures the V̇O2 fast component occurring in the transition from standing rest to treadmill walking.
Time frame: Baseline, within 48 hours of completing intervention
Distance Traveled
Distance traveled, reported in meters, during a 6-minute walk test. The assessment offers reliable and valid insight concerning exercise capacity in older women.
Time frame: Baseline, within 9 days of completing intervention
This platform is for informational purposes only and does not constitute medical advice. Always consult a qualified healthcare professional.