Proportional Internal Work-a New Parameter of Exercise Testing in Study of Health in Pomerania (SHIP).
Journal
Journal of cardiopulmonary rehabilitation and prevention
ISSN: 1932-751X
Titre abrégé: J Cardiopulm Rehabil Prev
Pays: United States
ID NLM: 101291247
Informations de publication
Date de publication:
01 11 2023
01 11 2023
Historique:
medline:
30
10
2023
pubmed:
15
5
2023
entrez:
15
5
2023
Statut:
ppublish
Résumé
Cardiopulmonary exercise testing usually requires a maximal exhaustive effort by the patient and is time consuming. The purpose of this study was to assess whether the cost to initiate exercise termed "proportional internal work" (PIW) was related to cardiovascular disease (CVD) risk factors, ventilatory parameters, and mortality. We used data from population-based Study of Health in Pomerania. A total of 2829 (49.5% female) study participants with a median age of 52 (42-62) yr were included. Standardized questionnaires were used to assess CV risk factors. The cardiopulmonary exercise testing was performed using a modified Jones protocol. Regression models adjusted for sex and age were used to relate PIW with CVD risk factors and ventilatory parameters. The PIW was calculated by the following formula: (Oxygen uptake at rest - Oxygen uptake without load)/V˙ o2peak ) × 100. Cox regression analysis was used to relate PIW and all-cause mortality. We identified a nonlinear association between PIW and percent predicted V˙ o2peak . Women had a 2.96 (95% CI, 2.61-3.32) greater PIW than men. With each year of age and every point in body mass index, the PWI increased by 0.04 (95% CI, 0.03-0.05) and 0.16 (95% CI, 0.12-0.20), respectively. After adjustment for age, sex, smoking, and body mass index, a 1-point greater PIW was associated with a 5% higher risk to die (HR = 1.05; 95% CI, 1.01-1.07). The PIW is a new cardiopulmonary exercise testing parameter related to CVD risk and all-cause mortality. Future studies should assess the prognostic relevance of PIW for CVD prevention.
Identifiants
pubmed: 37184451
doi: 10.1097/HCR.0000000000000795
pii: 01273116-990000000-00093
doi:
Substances chimiques
Oxygen
S88TT14065
Types de publication
Journal Article
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Pagination
460-466Informations de copyright
Copyright © 2023 Wolters Kluwer Health, Inc. All rights reserved.
Déclaration de conflit d'intérêts
The authors declare no conflicts of interest.
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