Physiological research questions and proposed clinical effectiveness studies required in SLH
| Physiological research questions | Clinical effectiveness studies |
| Do SLH techniques and participation in SLH groups change sputum expectoration volume, cough and exacerbation frequency? | SLH group participation vs generic community choir participation. |
| How do different SLH techniques change laryngeal function and airflow compared with passive breathing? | SLH group participation as a maintenance intervention post-PR completion vs standard care. |
| How do SLH techniques change respiratory and abdominal muscle activity compared with passive breathing? | SLH as one-to-one inpatient and outpatient option vs traditional physiotherapy for symptom management (breathlessness, airway clearance). |
| How do SLH techniques change thoracoabdominal volumes compared with passive breathing? | Online SLH group participation vs face-to-face group participation. |
| How does participation in SLH groups change posture and balance? | Post-exacerbation SLH vs standard care. |
| Does long term participation in SLH groups alter the trajectory of lung function decline in COPD? | PR vs SLH for those who decline PR. |
| What level of physical activity is performed by individuals in a SLH group? | SLH vs usual care in different settings and populations. |
| Does participation in SLH groups improve inspiratory and expiratory muscle strength? | |
| Is there a difference in breathing pattern between SLH repertoire directed performance and other repertoire such as pop and classical? |
COPD, chronic obstructive pulmonary disease; PR, pulmonary rehabilitation; SLH, Singing for Lung Health.