Fig. 5
From: Clinical validation of smartphone-based activity tracking in peripheral artery disease patients
6MWT study design and metric comparison paradigm. a Schematic illustrating the 6MWT study design. Patients walked back and forth along a 100-foot course for 6 min or until they could walk no further, while an ActiGraph, iPhone, and human observed and measured walking metrics (e.g., steps, distance). b Schematic illustrating the paradigm used for device analysis
