scholarly journals WS21.6 Prognostic value of breathing reserve index at anaerobic threshold during cardiopulmonary exercise testing in children with cystic fibrosis

2015 ◽  
Vol 14 ◽  
pp. S40
Author(s):  
R. O'Connor ◽  
S. Rand ◽  
L. Grillo ◽  
H. Hebestreit ◽  
S.A. Prasad ◽  
...  
Keyword(s):  
Cystic Fibrosis ◽  
Anaerobic Threshold ◽  
Exercise Testing ◽  
Prognostic Value ◽  
Cardiopulmonary Exercise Testing ◽  
Cardiopulmonary Exercise

scholarly journals Can wearable technology be used to approximate cardiopulmonary exercise testing metrics?

2021 ◽  
Vol 10 (1) ◽  
Author(s):  
Laura Jones ◽  
Laura Tan ◽  
Suzanne Carey-Jones ◽  
Nathan Riddell ◽  
Richard Davies ◽  
...  
Keyword(s):  
Physical Activity ◽  
High Risk ◽  
Oxygen Uptake ◽  
Anaerobic Threshold ◽  
Exercise Testing ◽  
Low Cost ◽  
Cardiopulmonary Exercise Testing ◽  
Peak Oxygen Uptake ◽  
Wearable Device ◽  
Cardiopulmonary Exercise

Abstract Background Consumer wrist-worn wearable activity monitors are widely available, low cost and are able to provide a direct measurement of several markers of physical activity. Despite this, there is limited data on their use in perioperative risk prediction. We explored whether these wearables could accurately approximate metrics (anaerobic threshold, peak oxygen uptake and peak work) derived using formalised cardiopulmonary exercise testing (CPET) in patients undergoing high-risk surgery. Methods Patients scheduled for major elective intra-abdominal surgery and undergoing CPET were included. Physical activity levels were estimated through direct measures (step count, floors climbed and total distance travelled) obtained through continuous wear of a wrist worn activity monitor (Garmin Vivosmart HR+) for 7 days prior to surgery and self-report through completion of the short International Physical Activity Questionnaire (IPAQ). Correlations and receiver operating characteristic (ROC) curve analysis explored the relationships between parameters provided by CPET and physical activity. Device selection Our choice of consumer wearable device was made to maximise feasibility outcomes for this study. The Garmin Vivosmart HR+ had the longest battery life and best waterproof characteristics of the available low-cost devices. Results Of 55 patients invited to participate, 49 (mean age 65.3 ± 13.6 years; 32 males) were enrolled; 37 provided complete wearable data for analyses and 36 patients provided full IPAQ data. Floors climbed, total steps and total travelled as measured by the wearable device all showed moderate correlation with CPET parameters of peak oxygen uptake (peak VO2) (R = 0.57 (CI 0.29–0.76), R = 0.59 (CI 0.31–0.77) and R = 0.62 (CI 0.35–0.79) respectively), anaerobic threshold (R = 0.37 (CI 0.01–0.64), R = 0.39 (CI 0.04–0.66) and R = 0.42 (CI 0.07–0.68) respectively) and peak work (R = 0.56 (CI 0.27–0.75), R = 0.48 (CI 0.17–0.70) and R = 0.50 (CI 0.2–0.72) respectively). Receiver operator curve (ROC) analysis for direct and self-reported measures of 7-day physical activity could accurately approximate the ventilatory equivalent for carbon dioxide (VE/VCO2) and the anaerobic threshold. The area under these curves was 0.89 for VE/VCO2 and 0.91 for the anaerobic threshold. For peak VO2 and peak work, models fitted using just the wearable data were 0.93 for peak VO2 and 1.00 for peak work. Conclusions Data recorded by the wearable device was able to consistently approximate CPET results, both with and without the addition of patient reported activity measures via IPAQ scores. This highlights the potential utility of wearable devices in formal assessment of physical functioning and suggests they could play a larger role in pre-operative risk assessment. Ethics This study entitled “uSing wearable TEchnology to Predict perioperative high-riSk patient outcomes (STEPS)” gained favourable ethical opinion on 24 January 2017 from the Welsh Research Ethics Committee 3 reference number 17/WA/0006. It was registered on ClinicalTrials.gov with identifier NCT03328039.

scholarly journals Cardiopulmonary Exercise Testing Provides Additional Prognostic Information in Cystic Fibrosis

2019 ◽  
Vol 199 (8) ◽  
pp. 987-995 ◽  
Author(s):  
Helge Hebestreit ◽  
Erik H. J. Hulzebos ◽  
Jane E. Schneiderman ◽  
Chantal Karila ◽  
Steven R. Boas ◽  
...  
Keyword(s):  
Cystic Fibrosis ◽  
Exercise Testing ◽  
Cardiopulmonary Exercise Testing ◽  
Prognostic Information ◽  
Cardiopulmonary Exercise

Prognostic value of cardiopulmonary exercise testing in children with heart failure secondary to idiopathic dilated cardiomyopathy in a non-β-blocker therapy setting

2008 ◽  
Vol 10 (6) ◽  
pp. 560-565 ◽  
Author(s):  
Guilherme Veiga Guimarães ◽  
Veridiana Moraes d'Avila ◽  
Paulo Roberto Camargo ◽  
Luiz Felipe Pinho Moreira ◽  
Jose Ramon Lanz Luces ◽  
...  
Keyword(s):  
Heart Failure ◽  
Dilated Cardiomyopathy ◽  
Exercise Testing ◽  
Prognostic Value ◽  
Cardiopulmonary Exercise Testing ◽  
Idiopathic Dilated Cardiomyopathy ◽  
Blocker Therapy ◽  
Cardiopulmonary Exercise ◽  
Β Blocker
Sign in / Sign up

Export Citation Format

Share Document