Evaluating the Accuracy and Reliability of Real-World Digital Mobility Outcomes in Older Adults After Hip Fracture: Cross-Sectional Observational Study
In total, 5 accurate and reliable real-world DMOs were identified in older adults after hip fracture: walking speed, cadence, stride duration, number of steps, and distance. Accuracy and reliability of most DMOs improved when excluding WBs of <10 seconds and were higher for WBs of >30 seconds than for WBs of 10 to 30 seconds and for participants with higher physical function. DMOs capture daily gait as early as 1 month after surgery also in people using walking aids. However, as most WBs in this cohort were short, there was a trade-off between improving accuracy and reliability by excluding short WBs and losing a substantial amount of data. These results have important implications for establishing the clinical validity of DMOs and evaluating the effects of interventions on daily-life gait, thereby facilitating the design of optimal care pathways.
Authors
- Andrea Cereatti (ORCID: https://orcid.org/0000-0002-7276-5382)
- Arne Mueller (ORCID: https://orcid.org/0000-0001-6551-2283)
- Jeffrey M. Hausdorff (ORCID: https://orcid.org/0000-0002-1608-0776)
- Dimitrios Megaritis (ORCID: https://orcid.org/0000-0001-6786-4346)
- Karoline Blix Grønvik (ORCID: https://orcid.org/0009-0008-4594-0000)
- Arne Küderle (ORCID: https://orcid.org/0000-0002-5686-281X)
- Lars Gunnar Johnsen (ORCID: https://orcid.org/0000-0001-5500-498X)
- Judith García‐Aymerich (ORCID: https://orcid.org/0000-0002-7097-4586)
- Lars Schwickert (ORCID: https://orcid.org/0009-0000-9220-4841)
- M. Encarna Micó-Amigo (ORCID: https://orcid.org/0000-0002-8968-6373)
- Cameron Kirk (ORCID: https://orcid.org/0000-0003-2508-5816)
- Walter Maetzler (ORCID: https://orcid.org/0000-0002-5945-4694)
- Silvia Del Din (ORCID: https://orcid.org/0000-0003-1154-4751)
- Anisoara Paraschiv-Ionescu (ORCID: https://orcid.org/0000-0002-2341-4383)
- Clint Hansen (ORCID: https://orcid.org/0000-0003-4813-3868)
- Beatrix Vereijken (ORCID: https://orcid.org/0000-0002-2231-8138)
- Lynn Rochester (ORCID: https://orcid.org/0000-0001-5774-9272)
- Sarah Koch (ORCID: https://orcid.org/0000-0001-9461-8407)
- Jochen Klenk (ORCID: https://orcid.org/0000-0002-5987-447X)
- Clemens Becker (ORCID: https://orcid.org/0000-0003-1624-8353)
- Monika Engdal (ORCID: https://orcid.org/0009-0007-4854-2561)
- Jorunn L. Helbostad (ORCID: https://orcid.org/0000-0003-0214-9290)
- Carl-Philipp Jansen (ORCID: https://orcid.org/0000-0002-2779-7019)
- Kristin Taraldsen (ORCID: https://orcid.org/0000-0002-8466-5450)
- Martin Aursand Berge (ORCID: https://orcid.org/0000-0001-8741-0739)
Institutions
- Novartis (Switzerland) (CH)
- Rush University Medical Center (US)
- Tel Aviv University (IL)
- Universitat Pompeu Fabra (ES)
- Politecnico di Torino (IT)
- Friedrich-Alexander-Universität Erlangen-Nürnberg (DE)
- University of Basel (CH)
- Universität Ulm (DE)
- Norwegian University of Science and Technology (NO)
- Heidelberg University (DE)
- Newcastle upon Tyne Hospitals NHS Foundation Trust (GB)
- University Hospital Heidelberg (DE)
- Robert Bosch Hospital (DE)
- Christian-Albrechts-Universität zu Kiel (DE)
- Northumbria University (GB)
- Zimmer Biomet (Germany) (DE)
- St Olav's University Hospital (NO)
- University Hospital Schleswig-Holstein (DE)
- 657 Oslo (NO)
- NIHR Newcastle Biomedical Research Centre (GB)
- Barcelona Institute for Global Health (ES)
- Centro de Investigación Biomédica en Red de Epidemiología y Salud Pública (ES)
- IB Hochschule (DE)
- École Polytechnique Fédérale de Lausanne (CH)
- Newcastle University (GB)
- University of Lübeck (DE)
Publication Details
- Journal
- JMIR Formative Research
- Published
- 2025-04-04
- DOI
- https://doi.org/10.2196/67792
- Citations
- 3
- Primary Topic
- Hip and Femur Fractures
- Type
- article
- Field-Weighted Citation Impact
- 6.02