Modulating Locomotor-Respiratory Coupling Through Adaptive Exoskeleton Assistance in Patients With COPD
Studieoversigt
Status
Status
Betingelser
Betingelser
Intervention / Behandling
Intervention / Behandling
Undersøgelsestype
Undersøgelsestype
Tilmelding (Anslået)
Tilmelding
Fase
Fase
- Ikke anvendelig
Kontakter og lokationer
Studiesteder
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Nebraska
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Omaha, Nebraska, Forenede Stater, 68182
- UNO Biomechanics
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Kontakt:
- Farahnaz Fallahtafti
- Telefonnummer: 4025543075
- E-mail: ffallahtafti@unomaha.edu
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Deltagelseskriterier
Berettigelseskriterier
Berettigelseskriterier
Aldre berettiget til at studere
- Voksen
- Ældre voksen
Tager imod sunde frivillige
Beskrivelse
Inclusion Criteria:
- COPD Diagnosis & Severity: Documented FEV1/FVC ratio of < 0.7 and a post-bronchodilator FEV1% predicted between 30% and 80% (classifying as moderate to severe COPD).
- Age Requirement: Must be between 45 and 75 years old.
- Body Mass Index (BMI): Must have a BMI of less than 35 kg/m^2.
- Medical Clearance & Screening: Must undergo post-bronchodilator spirometry, successfully pass the screening protocol, and receive formal clearance for participation from a physician.
Exclusion Criteria:
- Failing to pass the initial spirometry test.
- Not being formally cleared for participation by a physician.
- Having a diagnosed pulmonary or cardiac issue that would pose a safety hazard during the laboratory treadmill exercise trials.
Studieplan
Hvordan er undersøgelsen tilrettelagt?
Design detaljer
- Primært formål: Enhedens gennemførlighed
- Tildeling: Randomiseret
- Interventionel model: Enkelt gruppeopgave
- Maskning: Ingen (Åben etiket)
Antal våben
Våben og indgreb
Deltagergruppe / ArmDeltagergruppe / Arm |
Intervention / BehandlingIntervention / Behandling |
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Ingen indgriben: Standard Walking (No Hip Exoskeleton)
Subjects will walk on a treadmill at a preferred speed.
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Eksperimentel: Hip Exoskeleton-Assisted Walking
Subjects will walk on a treadmill while wearing a hip exoskeleton providing them assistance.
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The intervention is a wearable hip exoskeleton designed to provide assistive torque during treadmill walking.
During the assisted walking condition, participants will wear the exoskeleton secured around the waist and thighs.
The device will provide powered assistance to the hip joints during walking to reduce the physical demand of locomotion.
Participants will complete a 30-minute treadmill walking session at an individualized workload determined during an initial exercise calibration visit.
The effects of hip exoskeleton assistance will be evaluated by comparing physiological, respiratory, biomechanical, and exercise tolerance outcomes with a standard walking condition performed without exoskeleton assistance.
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Hvad måler undersøgelsen?
Primære resultatmål
Primære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
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Respiratory Rate and Timing
Tidsramme: Continuous assessment during the 30-minute treadmill walking bout within each single-day experimental session.
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Measured continuously in real-time using Respiratory Inductance Plethysmography bands worn around the chest and abdomen.
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Continuous assessment during the 30-minute treadmill walking bout within each single-day experimental session.
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Locomotor-Respiratory Coupling (LRC) Ratios
Tidsramme: Continuous assessment during the 30-minute treadmill walking bout within each single-day experimental session.
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Quantifies the frequency coupling and synchronization between breathing cycles (via RIP bands) and walking cycles (via an SMTEC footswitch system to detect heel strikes).
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Continuous assessment during the 30-minute treadmill walking bout within each single-day experimental session.
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Dyspnea (Perceived Breathlessness)
Tidsramme: Assessed at the end of each treadmill walking bout during the 30-minute exercise session.
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Evaluated at the end of each exercise bout using the Modified Borg Scale, ranging from 0 (no breathlessness) to 10 (maximum breathlessness)
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Assessed at the end of each treadmill walking bout during the 30-minute exercise session.
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Dynamic Hyperinflation
Tidsramme: Measured via spirometry at baseline (pre-exercise) and immediately following the treadmill walking session.
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Evaluated by monitoring the reduction in Inspiratory Capacity (the maximum volume of air inhaled after a regular, calm exhalation) via baseline and post-exercise spirometry.
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Measured via spirometry at baseline (pre-exercise) and immediately following the treadmill walking session.
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Walking Kinematics
Tidsramme: Continuously recorded during the active 30-minute treadmill walking period in each session.
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Captured at 100 Hz using a 17-camera high-speed digital motion capture system with reflective anatomical markers placed on the lower limbs.
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Continuously recorded during the active 30-minute treadmill walking period in each session.
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Total Walking Time
Tidsramme: Recorded as the exact cumulative duration of all active walking bouts during the 30-minute session.
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Measured precisely using digital stopwatches to record the exact duration of walking bouts during the 30-minute session.
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Recorded as the exact cumulative duration of all active walking bouts during the 30-minute session.
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Metabolic Cost / Metabolic Equivalents of Task (METs)
Tidsramme: Continuous assessment during the 30-minute treadmill walking bout within each single-day experimental session.
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Determined by measuring net O2 consumption and CO2 production using indirect calorimetry.
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Continuous assessment during the 30-minute treadmill walking bout within each single-day experimental session.
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Samarbejdspartnere og efterforskere
Sponsor
Sponsor
Datoer for undersøgelser
Studer store datoer
Studiestart (Anslået)
Studiestart
Primær færdiggørelse (Anslået)
Primær færdiggørelse
Studieafslutning (Anslået)
Studieafslutning
Datoer for studieregistrering
Først indsendt
Først indsendt
Først indsendt, der opfyldte QC-kriterier
Først indsendt, der opfyldte QC-kriterier
Først opslået (Faktiske)
Først opslået
Opdateringer af undersøgelsesjournaler
Sidste opdatering sendt (Faktiske)
Sidste opdatering sendt
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
Sidst verificeret
Sidst verificeret
Mere information
Begreber relateret til denne undersøgelse
Yderligere relevante MeSH-vilkår
Andre undersøgelses-id-numre
Andre undersøgelses-id-numre
- COPD
Plan for individuelle deltagerdata (IPD)
Planlægger du at dele individuelle deltagerdata (IPD)?
IPD-planbeskrivelse
Lægemiddel- og udstyrsoplysninger, undersøgelsesdokumenter
Studerer et amerikansk FDA-reguleret lægemiddelprodukt
Studerer et amerikansk FDA-reguleret enhedsprodukt
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