Linear Modelling of the V̇O2/PO-Relationship during Constant Work Rate Exercise.

Stuer, Lena; Boone, Jan; Mucci, Patrick; Colosio, Alessandro L.; Bourgois, Jan G.; Caen, Kevin

Type de document :

Article dans une revue scientifique: Article original

DOI :

10.1249/MSS.0000000000003647

PMID :

39800927

URL permanente :

http://hdl.handle.net/20.500.12210/123691

Titre :

Linear Modelling of the V̇O2/PO-Relationship during Constant Work Rate Exercise.

Auteur(s) :

Stuer, Lena [Auteur]
Unité de Recherche Pluridisciplinaire Sport, Santé, Société (URePSSS) - ULR 7369 - ULR 4488 [URePSSS]
Boone, Jan [Auteur]
Department of Movement and Sports Sciences
Mucci, Patrick [Auteur]

Unité de Recherche Pluridisciplinaire Sport, Santé, Société (URePSSS) - ULR 7369
Colosio, Alessandro L. [Auteur]
Department of Movement and Sports Sciences
Bourgois, Jan G. [Auteur]
Department of Movement and Sports Sciences
Caen, Kevin [Auteur]
Department of Movement and Sports Sciences

Titre de la revue :

Medicine and Science in Sports and Exercise

Nom court de la revue :

Med Sci Sports Exerc

Éditeur :

American College Of Sports Medicine

Date de publication :

2025-01-26

ISSN :

1530-0315

Discipline(s) HAL :

Sciences du Vivant [q-bio]

Résumé en anglais : [en]

Introduction The linear and continuous increase in power output (PO) during ramp incremental (RI) exercise causes a distinct V̇O2/PO relationship compared to constant work rate (CWR) exercise. Current methods enabling a ...
Lire la suite >Introduction The linear and continuous increase in power output (PO) during ramp incremental (RI) exercise causes a distinct V̇O2/PO relationship compared to constant work rate (CWR) exercise. Current methods enabling a translation of ramp-derived PO to CWR PO assume a linear development of the CWR V̇O2/PO relationship in the heavy-intensity domain. This study aimed to model the RI versus CWR V̇O2/PO relationship to investigate whether the loss of mechanical efficiency above GET develops linearly. A second aim was to assess the reliability of ramp-derived parameters incorporated in translation strategies. Methods Fourteen healthy young participants (7 males; 7 females) performed a RI test and several CWR tests across the heavy- and severe-intensity domains in order to model the RI and CWR V̇O2/PO relationships. The CWR relationship was fitted using linear, polynomial and exponential models. Root mean square error (RMSE) and Akaike information criterion (AICC) were determined to evaluate the model’s goodness-of-fit. For reliability purposes, target PO of CWR tests were achieved using a preceding RI portion, similar to the initial RI test. Results The linear fit of the CWR V̇O2/PO relationship was associated with the lowest RMSE and AICC. The associated R2 for the heavy-intensity domain was 0.94. Reliability measures were excellent for baseline V̇O2 and acceptable to good for s1-ramp and s2- ramp. For MRT, a high variability was observed. Conclusions This study confirmed that the CWR V̇O2/PO relationship in the heavy-intensity domain is linear. Based on these results, it is justified to apply correction strategies that mind the different dynamics of V̇O2 during RI versus CWR exercise.Lire moins >

Langue :

Anglais

Audience :

Internationale

Vulgarisation :

Non

Établissement(s) :

Université de Lille
Univ. Artois
Univ. Littoral Côte d’Opale

Collections :

Unité de Recherche Pluridisciplinaire Sport, Santé, Société (URePSSS) - ULR 7369

Date de dépôt :

2025-01-28T22:02:12Z
2025-02-06T10:21:17Z

Numéro de version	Lien	Date de modification
2	20.500.12210/123691*	2025-02-06T10:15:43Z
1	20.500.12210/123691.1	2025-01-28T22:02:12Z

Linear Modelling of the V̇O2/PO-Relationship ...

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Linear Modelling of the V̇O2/PO-Relationship ...

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