Effects of a Walking Program and Inspiratory Muscle Training in Individuals With Chronic Heart Failure

Recruiting in Palo Alto (17 mi)

+1 other location

Overseen bySuh-Jen Lin, PhD, PT

Age: 18+

Sex: Any

Travel: May Be Covered

Time Reimbursement: Varies

Trial Phase: Academic

Waitlist Available

Sponsor: Texas Woman's University

No Placebo Group

Trial Summary

What is the purpose of this trial?

Individuals with chronic heart failure need a "safe and effective" exercise program that could enhance their quality of life. In this study, we examined whether an experimental exercise program of autonomous walking and high-intensity Inspiratory Muscle Training (IMT) could result in better effects on respiratory muscle strength (PImax), cardiovascular endurance, quality of life, and physical activity, when compared to autonomous walking and "sham" IMT program, in adults with chronic heart failure.

Research Team

Suh-Jen Lin, PhD, PT

Principal Investigator

Texas Woman's University

Eligibility Criteria

Inclusion Criteria

adults with chronic heart failure (NYHA Functional Class II-III)

BMI < 35 kg/m^2

Age: 18 to 90 years

See 2 more

Treatment Details

Interventions

High-intensity IMT plus walking (Behavioral Intervention)
Low-intensity IMT plus walking (Behavioral Intervention)

Participant Groups

2Treatment groups

Experimental Treatment

Placebo Group

Group I: High-intensity IMT Plus WalkingExperimental Treatment1 Intervention

Inspiratory Muscle Training (IMT) intensity was set at 60% PImax. The walking program was the same as the one for the control group.

Group II: Low-intensity IMT Plus WalkingPlacebo Group1 Intervention

Inspiratory Muscle Training (IMT) intensity was set at 15% PImax. The walking program consisted of walking every day at an intensity of "somewhat hard" to "hard" on the Borg's Rating of Perceived Exertion (RPE) scale. Participants were encouraged to walk at 10 to 15 minutes, once to twice a day initially, then progressed to 45-50 minutes a day by the end of the six weeks, if they could tolerate.