Validity of the International Fitness Scale (IFIS) and its associations with cardiometabolic health and body composition in adults with type 2 diabetes: A cross-sectional study
This study supports that IFIS may be a practical tool for adults with T2DM, showing evidence of criterion validity via graded association with 6MWT performance, and construct validity via significant associations with cardiometabolic and body composition outcomes. Although its ability to discriminate impaired functional capacity was limited, IFIS may serve as a feasible alternative for fitness assessment when objective testing is not possible in primary care.
Authors
- Stergios Kechagias (ORCID: https://orcid.org/0000-0001-7614-739X)
- Mikael Forsgren (ORCID: https://orcid.org/0000-0003-4630-6550)
- Patrik Nasr (ORCID: https://orcid.org/0000-0002-2928-4188)
- Fredrik Iredahl (ORCID: https://orcid.org/0000-0002-4245-7565)
- Pontus Henriksson (ORCID: https://orcid.org/0000-0003-2482-7048)
- Nils Dahlström (ORCID: https://orcid.org/0000-0002-4111-1693)
- Carl-Johan Gustav Carlhäll
- Olof Dahlqvist Leinhard
- Nahuel Roemkens
- Karin Rådholm
- Mattias Ekstedt
- Peter Lundberg
- Ángel Herraiz-Adillo
Institutions
- Linköping University (SE)
- UNSW Sydney (AU)
- CBot (Sweden) (SE)
- The George Institute for Global Health (AU)
- Linköping University Hospital (SE)
Publication Details
- Journal
- PLoS ONE
- Published
- 2026-01-06
- DOI
- https://doi.org/10.1371/journal.pone.0339364
- Primary Topic
- Nutrition and Health in Aging
- Type
- article
- Field-Weighted Citation Impact
- 0.00