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IMST per la Riduzione del Rischio di Demenza

2 novembre 2026 aggiornato da: Julia Sheffler, Florida State University

Studio Pilota Controllato Randomizzato sull'Allenamento della Forza Muscolare Inspiratoria (IMST) per Ridurre il Rischio di Demenza negli Anziani

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.

Panoramica dello studio

Stato

Reclutamento

Condizioni

Intervento / Trattamento

Descrizione dettagliata

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-resistance IMST group will show greater reductions in systolic blood pressure and other vascular health indicators compared to those in the sham IMST group after 8 weeks.

Hypothesis 2: Participants in the high-resistance IMST group will demonstrate greater improvements in executive cognitive function than those in the sham group.

Hypothesis 3: IMST will lead to secondary improvements in mood (reduced depression and anxiety symptoms), better sleep quality (as measured by self-report and actigraphy), and improved physical function (e.g., grip strength, gait speed).

Hypothesis 4: The IMST protocol will be feasible and acceptable, with at least 80% adherence to prescribed training sessions over the 8-week period.

Tipo di studio

Interventistico

Iscrizione (Stimato)

30

Fase

  • Non applicabile

Contatti e Sedi

Questa sezione fornisce i recapiti di coloro che conducono lo studio e informazioni su dove viene condotto lo studio.

Luoghi di studio

    • Florida
      • Tallahassee, Florida, Stati Uniti, 32301
        • Reclutamento
        • Florida State University
        • Contatto:

Criteri di partecipazione

I ricercatori cercano persone che corrispondano a una certa descrizione, chiamata criteri di ammissibilità. Alcuni esempi di questi criteri sono le condizioni generali di salute di una persona o trattamenti precedenti.

Criteri di ammissibilità

Età idonea allo studio

Da 60 anni a 80 anni (Adulto, Adulto più anziano)

Accetta volontari sani

No

Sessi ammissibili allo studio

Tutto

Descrizione

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 inclusion of inspiratory muscle weakness (MIP <80 cmH₂O for men, <70 cmH₂O for women) will also be assessed.

Exclusion Criteria:

  • tMoCA <18, or diagnosis of neurodegenerative illness at the discretion of principal investigator (except MCI)
  • Current evidence of any major psychiatric disorder including psychosis (at the discretion of principal investigator), bipolar disorder, severe major depression (PHQ-9 > 20)
  • Unstable cardiovascular or pulmonary disease
  • Recent respiratory therapy or major medication changes
  • Self-reported severe untreated or unstable obstructive sleep apnea (OSA)
  • Recent start (within the past month) of CPAP or BiPAP, or recent use of inspiratory muscle training
  • Lung and eardrum injuries
  • Non-English speaking
  • Participants with a pacemaker or other medical implants containing magnets or electronics will be noted and excluded from body composition analyses.

Piano di studio

Questa sezione fornisce i dettagli del piano di studio, compreso il modo in cui lo studio è progettato e ciò che lo studio sta misurando.

Come è strutturato lo studio?

Dettagli di progettazione

  • Scopo principale: Prevenzione
  • Assegnazione: Randomizzato
  • Modello interventistico: Assegnazione parallela
  • Mascheramento: Separare

Armi e interventi

Gruppo di partecipanti / Arm
Intervento / Trattamento
Sperimentale: High-Resistance

Participants assigned to the high resistance arm will complete inspiratory muscle strength training (IMST) using a handheld respiratory training device set to 75% of their maximal inspiratory pressure (MIP). Participants will follow the IMST training regimen for the duration of the intervention period, 8-weeks, consisting of 30 breaths per day, completed in a minimum of 5 minutes.

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.

Comparatore fittizio: Control Group - Low-Resistance

Participants assigned to the low-resistance arm will complete inspiratory muscle strength training (IMST) using a handheld respiratory training device set to 15% of their maximal inspiratory pressure (MIP). Participants will follow the IMST training regimen for the duration of the intervention period, 8-weeks, completing 30 inspiratory breaths per day, with each session lasting a minimum of 5 minutes.

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.

Cosa sta misurando lo studio?

Misure di risultato primarie

Misura del risultato
Misura Descrizione
Lasso di tempo
Change in systolic BP
Lasso di tempo: Baseline, 8-weeks

Participants will demonstrate a change in systolic blood pressure (mmHg), assessed as the average of two seated measurements obtained following two consecutive 5-minute rest periods, from baseline to post-intervention.

Baseline, 8-weeks
Change in executive cognitive functioning
Lasso di tempo: Baseline, 8 weeks

Participants will demonstrate a change in executive cognitive functioning, assessed using the Fluid Composite Score from the NIH Toolbox Cognition Battery. The Fluid Composite Score is derived from tasks assessing executive function, attention, working memory, episodic memory, and processing speed. Change in executive cognitive functioning will be evaluated as the difference in Fluid Composite Scores from baseline to post-intervention.

Baseline, 8 weeks

Misure di risultato secondarie

Misura del risultato
Misura Descrizione
Lasso di tempo
Change from Baseline in Mood Symptoms (Depression) at 8 Weeks
Lasso di tempo: Baseline, 8 weeks

Participants will demonstrate a change in depression symptoms, assessed using the Patient Health Questionnaire-9 (PHQ-9) for depressive symptoms. Total scores of 5, 10, 15, and 20 represent cut off points for mild, moderate, moderately severe and severe depression. Change in symptoms will be evaluated as the difference in scores from baseline to 8 weeks, with higher scores indicating greater symptom severity.

Baseline, 8 weeks
Change from Baseline in Mood Symptoms (Anxiety) at 8 Weeks
Lasso di tempo: Baseline, 8 weeks

Participants will demonstrate a change in anxiety symptoms, assessed using the Geriatric Anxiety Scale-10 (GAS) for anxiety symptoms. Total scores range from 0 to 30, with higher scores indicating greater symptom severity. Change in symptoms will be evaluated as the difference in scores from baseline to 8 weeks, with higher scores indicating greater severity.

Baseline, 8 weeks
Change from Baseline in Sleep Quality at 8 Weeks
Lasso di tempo: Baseline, 8 weeks

Participants will demonstrate a change in sleep quality, measured using the Pittsburgh Sleep Quality Index (PSQI) and objective sleep measures collected via actigraphy (Fitbit) devices provided to participants. Change in sleep quality will be evaluated as the difference in PSQI global scores, with higher scores indicating poorer sleep quality, and sleep metrics compiled from actigraphy data from baseline to 8 weeks.

Baseline, 8 weeks
Change from Baseline in Inflammatory Markers (CRP, IL-6, TNF-α) at 8 Weeks
Lasso di tempo: Baseline, 8 weeks

Participants will demonstrate a change in inflammatory markers, assessed from fasting blood samples. Serum concentrations of CRP, IL-6, and TNF-α will be measured using standardized laboratory analyses. Change in inflammatory markers will be evaluated from baseline to 8 weeks.

Baseline, 8 weeks
Change from Baseline in Physical Functioning (Grip-Strength) at 8 Weeks
Lasso di tempo: Baseline, 8 weeks

Participants will demonstrate a change in physical functioning, assessed using grip strength. Change in physical functioning will be evaluated from baseline to 8 weeks based on performance across these standardized physical function measures. Higher grip strength performance indicate improved physical functioning.

Baseline, 8 weeks
Change from Baseline in Physical Functioning (Gait Speed) at 8 Weeks
Lasso di tempo: Baseline, 8 weeks

Participants will demonstrate a change in physical functioning, assessed using gait speed. Change in physical functioning will be evaluated from baseline to 8 weeks based on performance across these standardized physical function measures. Faster gait speed performance indicate improved physical functioning.

Baseline, 8 weeks
Change from Baseline in Physical Functioning (Sit-to-Stand) at 8 Weeks
Lasso di tempo: Baseline, 8 weeks

Participants will demonstrate a change in physical functioning, assessed using the sit-to-stand test. Change in physical functioning will be evaluated from baseline to 8 weeks based on performance across these standardized physical function measures. Improved sit-to-stand performance indicate improved physical functioning.

Baseline, 8 weeks

Collaboratori e investigatori

Qui è dove troverai le persone e le organizzazioni coinvolte in questo studio.

Sponsor

Collaboratori

Studiare le date dei record

Queste date tengono traccia dell'avanzamento della registrazione dello studio e dell'invio dei risultati di sintesi a ClinicalTrials.gov. I record degli studi e i risultati riportati vengono esaminati dalla National Library of Medicine (NLM) per assicurarsi che soddisfino specifici standard di controllo della qualità prima di essere pubblicati sul sito Web pubblico.

Studia le date principali

Inizio studio (Effettivo)

17 novembre 2025

Completamento primario (Stimato)

1 febbraio 2027

Completamento dello studio (Stimato)

1 febbraio 2027

Date di iscrizione allo studio

Primo inviato

15 gennaio 2026

Primo inviato che soddisfa i criteri di controllo qualità

15 gennaio 2026

Primo Inserito (Effettivo)

20 gennaio 2026

Aggiornamenti dei record di studio

Ultimo aggiornamento pubblicato (Effettivo)

4 novembre 2026

Ultimo aggiornamento inviato che soddisfa i criteri QC

2 novembre 2026

Ultimo verificato

1 novembre 2026

Maggiori informazioni

Termini relativi a questo studio

Altri numeri di identificazione dello studio

  • STUDY00006529

Piano per i dati dei singoli partecipanti (IPD)

Hai intenzione di condividere i dati dei singoli partecipanti (IPD)?

NO

Descrizione del piano IPD

Individual participant data will not be shared to protect the privacy and confidentiality of the participants.

Informazioni su farmaci e dispositivi, documenti di studio

Studia un prodotto farmaceutico regolamentato dalla FDA degli Stati Uniti

No

Studia un dispositivo regolamentato dalla FDA degli Stati Uniti

Sì

prodotto fabbricato ed esportato dagli Stati Uniti

No

Queste informazioni sono state recuperate direttamente dal sito web clinicaltrials.gov senza alcuna modifica. In caso di richieste di modifica, rimozione o aggiornamento dei dettagli dello studio, contattare register@clinicaltrials.gov. Non appena verrà implementata una modifica su clinicaltrials.gov, questa verrà aggiornata automaticamente anche sul nostro sito web .