Study design (if review, criteria of inclusion for studies)
Randomised controlled trial.
Participants
Paediatric outpatients with CF.
Interventions
Participants were randomly allocated with a block on gender to a control (standard therapy) or intervention group (initial n=10 (6 boys) in each group; age 10+/-1 and 11+/-1 years). The latter group performed a combined programme (inspiratory muscle training - IMT, 2 sessions/day) and aerobic+strength exercises (3 days/week, in-hospital)) that was followed by a 4-week detraining period.
Outcome measures
Primary outcomes: lung volume, inspiratory muscle strength (PImax) and cardiorespiratory fitness (VO2 peak). Secondary outcomes: and dynamic muscle strength, body composition and quality of life. All participants were evaluated at baseline, post-training and detraining.
Main results
Adherence to the training programme averaged 97.5%+/-1.7%. There was a significant interaction (groupxtime) effect for PImax, VO2peak and five-repetition maximum strength (leg-press, bench-press, seated-row) (all (p<0.001), and also for %fat (p<0.023) and %fat-free mass (p=0.001), with training exerting a significant beneficial effect only in the intervention group, which was maintained after detraining for PImax and leg-press.
Authors' conclusions
The relatively short-term (8-week) training programme used here induced significant benefits in important health phenotypes of paediatric patients with CF. IMT is an easily applicable intervention that could be included, together with supervised exercise training in the standard care of these patients.