TO THE EDITOR: I read with interest the careful study of Causer's group (1). While the
results are encouraging, caution must be used in recommending any new procedure as …

TO THE EDITOR: The study by Causer and colleagues (1) investigated the use of a maximal
oxygen uptake (VO2max) verification protocol in patients with cystic fibrosis. We commend …

The validity and safety of using supramaximal verification (Smax) to confirm a maximal effort
during cardiopulmonary exercise testing (CPET) in people with cystic fibrosis (CF) and/or …

TO THE EDITOR: We commend the recent CORP statement by Poole and Jones (1) in which
they advocate the use of a supramaximal bout to verify maximal oxygen uptake (VO2max) …

While the determination of exercise capacity is viewed as clinical best practice in cystic
fibrosis (CF), its measurement using a cardiopulmonary exercise test (CPET) remains as …

Background: Maximal cardiopulmonary exercise testing (CPET) is the most precise method
for evaluating physical function of patients with mild-to-moderate cystic fibrosis (CF). This …

Background Disease progression in cystic fibrosis (CF) is marked by worsening exercise
tolerance. Further, maximal exercise capacity (VO 2 peak) correlates with survival in CF, but …

Regular exercise testing is recommended for all people with cystic fibrosis (PwCF). A range
of validated tests, which integrate both strength and aerobic function, are available and …

Cystic fibrosis (CF) is a multisystem inherited progressive lung disease. Exercise testing
provides prognostic information related to clinical outcomes and quality of life to optimize …

Background The reproducibility of cardiopulmonary exercise testing (CPET) has not been
established in young cystic fibrosis (CF) patients using a valid protocol. Methods Thirteen 7 …