Published research exploring confidence and perceptions of effectiveness in performing a manually assisted cough on children with neuromuscular disease is not available. This descriptive study aimed to describe confidence and perceived effectiveness of parents, children, and therapists in parent performed manually assisted cough. A total of 28 children with neuromuscular disease, one of their parents, and physiotherapist participated. Overall, 40% of parents, 52% of children, and 46% of therapists were very confident in parents' ability to perform effective manually assisted coughs. Parents, children, and therapists largely perceived the parental manually assisted coughs as somewhat effective (68%, 60%, and 57%, respectively). Approximately, half of parents (48%), children (52%), and therapists (50%) felt very confident in parents' ability to retain the technique between clinic visits. Interestingly, percentage agreement statistics indicate that a reasonable proportion (30%) of pairs of respondents did not agree in their ratings. Overall, high percentages of favourable ratings were noted for all questions.