Study	Reason for exclusion
Alexander 2019	Intervention not eligible ‐ usual care vs whole body vibration training Outcomes not relevant (anthropometric data and bone parameters)
Aquino 2006	Duration not eligible, single session intervention
Baldwin 1994	Duration not eligible, single session intervention
Dwyer 2019	Duration not eligible, single session intervention
Falk 1988	Duration not eligible, single session intervention
Kaak 2011	Intervention not eligible ‐ physiotherapy vs physiotherapy AND didgeridoo playing Not randomised
Lannefors 1992	Duration not eligible, single session intervention
Montero‐Ruiz 2020	Intervention not eligible ‐ music therapy as an adjunct to airway clearance techniques
NCT00609050	Intervention not eligible ‐ 6 months self‐regulated exercise with telephone reinforcement vs 6 months self‐regulated exercise with no telephone reinforcement
NCT00792194	Trial abandoned due to loss to follow‐up and difficulties with inclusion criteria (author contacted 16 April 2019)
NCT03295201	Intervention not eligible ‐ thoracic vertebrae mobilization and scapula stretches considered too low intensity to fit inclusion criteria for this review
Radtke 2018	Duration not eligible, single session intervention
Reix 2012	Duration not eligible, single session intervention
Rodriguez 2017	Intervention not eligible ‐ chest physiotherapy vs 'pulmonary rehabilitation program,' which is not specified further (no clarification on whether or not this included exercise as an intervention)
Salh 1989	Study methodology not appropriate ‐ no randomisation of participants mentioned; co‐author contacted 3 February 2021 to confirm this
Santana‐Sosa 2014	Intervention not appropriate to this review. Inspiratory muscle training and exercise versus no intervention.
Zeren 2019	Intervention not eligible ‐ comprehensive chest physiotherapy program vs comprehensive chest physiotherapy program AND inspiratory muscle training

vs: versus