Influence of the low-frequency extension filter on accelerometer-based activity measurements in people with HIV: a comparative analysis

AIDS 2026

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Authors: Andre P. dos Santos, Vitor H.F. Oliveira, Amanda L Willig, Stephanie A. Ruderman, Christine Horvat Davey, Thomas W. Buford, D. Leann Long, Barbara Gripshover, Mari Katundu, Heidi M. Crane, Julia G. Fleming, Greer Burkholder
+2 more Michael S. Saag, Allison R. Webel
DOI: 10.1097/qad.0000000000004391
Cited by: 0
References: 27

Abstract

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.

Fields of Study & Subjects

Physical Activity and Health Context-Aware Activity Recognition Systems HIV-related health complications and treatments

Publication details

Journal / source
AIDS
Volume
40
Issue
3
Pages
394–396
Publication date
29 January 2026
Language
EN