Assessing the Validity and Reliability of a Single Lumbar-Mounted IMU System for Gait Analysis.

ABSTRACT: Wearable inertial sensors offer a practical alternative to gold-standard optoelectronic systems for gait analysis, though their validity remains uncertain due to sensor placement. This study examined the intra-rater and inter-rater reliability and the concurrent validity of a single lumbar-mounted inertial measurement unit (Baiobit, BTS Bioengineering, Garbagnate Milanese, Italy) compared with a 3D optoelectronic system (SMART-DX 6000, BTS Bioengineering). Thirty healthy adults walked along an 8 m walkway at a self-selected speed, and seven spatiotemporal gait parameters (cadence, velocity, stride length, step length, stance, swing, and single-support phases) were computed by both systems. Reliability and validity were assessed using intraclass correlation coefficients (ICC), standard erro

SUBMITTER: Lerin-Calvo A 

PROVIDER: S-EPMC12737096 | biostudies-literature | 2025 Dec

REPOSITORIES: biostudies-literature