Influence of the low-frequency extension filter on accelerometer-based activity measurements in people with HIV: a comparative analysis
Comparing ActiGraph Low-Frequency Extension (LFE) vs. normal filters on accelerometer-derived physical activity and sedentary behavior in 492 people with HIV. Participants wore ActiGraph 7-10 days; metrics (sedentary bouts, light physical activity, MVPA, steps) analyzed with both filters using Wilcoxon and Quade's ANCOVA. LFE increased MVPA (213.5 vs. 162.4 min/week) and steps (11 239 vs. 4853/day; P < 0.001) with minimal effects on sedentary bouts/light physical activity; effects were consistent across subgroups, indicating caution when comparing studies with different filters.
Authors
- M. S. Saag
- Barbara Gripshover (ORCID: https://orcid.org/0009-0007-9368-2969)
- Stephanie A. Ruderman (ORCID: https://orcid.org/0000-0002-0058-5729)
- Thomas W. Buford
- Mari Katundu
- D. Leann Long
- Greer Burkholder
- Vitor H.F. Oliveira
- Julia Fleming
- Andre P. dos Santos
- Heidi M. Crane
- Allison R. Webel
- Christine Horvat Davey
Institutions
- University of Washington (US)
- University of Alabama at Birmingham (US)
- Fenway Health (US)
- Case Western Reserve University (US)
Publication Details
- Journal
- AIDS
- Published
- 2026-01-29
- DOI
- https://doi.org/10.1097/qad.0000000000004391
- Primary Topic
- HIV-related health complications and treatments
- Type
- article
- Field-Weighted Citation Impact
- 0.00