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Motor Imagery Practice to Improve Respiratory and Cough Function.
Cara Donohue1,2
1Innovative Research in Aerodigestive Disorders Laboratory, Vanderbilt University Medical Center, Nashville, TN, USA. cara.donohue@vumc.org.
Dysphagia
|February 26, 2025
Summary
Motor imagery practice (MP) is feasible for improving voluntary cough (VC) and expiratory muscle strength training (EMST). This study found MP enhanced cough function in adults, suggesting potential for respiratory rehabilitation.
Area of Science:
- Respiratory Physiology
- Rehabilitation Medicine
- Motor Control
Background:
- Motor imagery practice (MP) is an established intervention for motor function in limbs and tongue.
- The application of MP to respiratory functions, specifically expiratory muscle strength training (EMST) and voluntary cough (VC), remains unexplored.
- Assessing the feasibility and impact of MP on pulmonary and cough function is crucial for expanding rehabilitation strategies.
Purpose of the Study:
- To investigate the feasibility and impact of motor imagery practice (MP) of voluntary cough (VC) and expiratory muscle strength training (EMST) on pulmonary and cough function.
- To evaluate treatment adherence, telehealth attendance, and perceived burden associated with MP interventions.
- To explore potential improvements in respiratory parameters such as peak expiratory flow rate (PEF) and cough effectiveness.
Main Methods:
- Twenty community-dwelling adults participated in a five-week intervention involving daily MP of VC or EMST at home.
- Participants underwent baseline and post-treatment assessments of maximum expiratory pressure (MEP), maximum inspiratory pressure (MIP), forced vital capacity (FVC), PEF, and cough spirometry.
- Weekly telehealth sessions supported adherence, and the Exercise Therapy Burden Questionnaire (ETBQ) assessed perceived burden.
Main Results:
- High adherence (95%) and telehealth attendance (91%) were recorded, with minimal perceived burden (median ETBQ score: 8).
- Significant increases in PEF were observed using a handheld device (p=0.03) and from cough spirometry (p=0.04) across both MP groups.
- The MP VC group specifically showed significant improvements in PEF from cough spirometry (p=0.04).
Conclusions:
- Motor imagery practice of voluntary cough and expiratory muscle strength training is feasible in community-dwelling adults.
- MP interventions demonstrated a positive impact on voluntary cough function, particularly in enhancing peak expiratory flow.
- Further research with larger sample sizes and diverse patient populations, including those with pulmonary, cough, and swallowing impairments, is warranted.
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