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Comparative gait traces for people living with HIV (PLHIV) and HIV-seronegative participants (SNP). Sagittal plane kinematic traces are shown as measured by optical motion capture (OMC) (a–d) and inertial measurement units (IMUs) (e–h). The graphs illustrate the mean (solid lines) ± standard deviation (shaded areas bounded by dashed lines) estimated by each system for each group. Note similarities in magnitude and direction of differences between PLHIV and SNP as observed by each system
