Randomized Controlled Pilot Trial of Inspiratory Muscle Strength Training (IMST) to Reduce Dementia Risk in Older Adults
Florida State University
Summary
Using a 2-arm, RCT approach, the primary goal of the study is to evaluate the feasibility and preliminary efficacy of Inspiratory Muscle Strength Training (IMST) as a non-pharmacologic intervention to reduce cardiovascular and cognitive risks in older adults. Next, investigators will examine secondary effects of IMST on mood, sleep quality, systemic inflammation, and physical/motor function. Finally, investigators will assess participant adherence and acceptability ratings of using an 8-week home-based IMST protocol in a diverse older adult sample.
Description
This is a 2-arm randomized pilot trial (N=30), including adults aged 60-80 years of age with cardiovascular risks for dementia. Participants will complete assessments prior to beginning the study, each week during the intervention, and at the conclusion of the 8-week intervention. Participants in the experimental group will complete daily high-resistance IMST training (e.g., 75% maximal inspiratory pressure), and participants in the sham condition will complete IMST training at 15% maximal inspiratory pressure. Investigators hypothesize the following: Hypothesis 1: Participants in the high-res…
Eligibility
- Age range
- 60–80 years
- Sex
- All
- Healthy volunteers
- No
Inclusion Criteria: * Ages 60-80 * Converted telephone MoCA total score≥18 * Presence of at least one dementia risk factor (e.g., MCI or subjective cognitive decline, hypertension \[SBP \>130 mmHg or on medication\], sedentary lifestyle \[\<150 min/week\], family history of dementia or self-reported APOE ε4 carrier, or mild sleep-disordered breathing; CAIDE total score \[\>5\] * Capable of independently completing or requiring minimal assistance with inspiratory muscle strength training (IMST) * Willing to adhere to the IMST protocol (approximately 5-10 minutes per day for 8 weeks) * Optional…
Interventions
- DeviceInspiratory Muscle Strength Training High-Resistance
Investigators will use POWERbreathe® Electronic IMST devices and manually set them to 75% of an individual's IPpeak, depending on their randomization, to the high-resistance IMST group or very low-resistance IMST (sham) group. All participants will complete 30 training breaths per day at home for 8 weeks.
- DeviceInspiratory Muscle Strength Training Low-Resistance
Investigators will use POWERbreathe® Electronic IMST devices and manually set them to 15% of an individual's IPpeak, depending on their randomization, to the high-resistance IMST group or very low-resistance IMST (sham) group. All participants will complete 30 training breaths per day at home for 8 weeks.
Location
- Florida State UniversityTallahassee, Florida