CFDB - Cystic Fibrosis DataBase

primary studies published RCT

How Many Maneuvers Should We Do for Maximal Inspiratory and Expiratory Muscle Pressure Testing in Children: A Retrospective Review in Children with Cystic Fibrosis.

Study design (if review, criteria of inclusion for studies)

Analysis of data of a previous randomized controlled trial

Participants

35 children with CF.

Interventions

Singing. On two different days (T1, T2) children performed MIP/MEP with at least ten attempts each to achieve < 10% repeatability.

Outcome measures

Maximal inspiratory pressure (MIP) and maximal expiratory pressure (MEP)

Main results

All children achieved repeatable MIP/MEP values within 10-11 attempts with 24 (68.6%) and 26 (74.3%) of these achieving best values of MIP and MEP, respectively, at attempts 6-11. Median values of the pressures by three, five, eight and all attempts significantly increased with more attempts (all p < 0.05). At T2, 56% required fewer attempts to achieve best values, but 32% required more attempts, indicating that the number of attempts required was inconsistent between test days.

Authors' conclusions

It is likely that at least ten attempts (best two within < 10% variability) is required to achieve best and reliable MIP/MEP in children with CF. A larger sample size in children with CF and various conditions is required to consolidate these findings.

Keywords: Adolescent; Adult; Child; Music Therapy - Singing; non pharmacological intervention - psyco-soc-edu-org; Creative and physical therapies; Behavioural interventions;