How Touchscreen Gestures and Component Design Affect Gait Kinematics During Smartphone Use While Walking

This dataset supports a study investigating how touchscreen gesture types (single tap, double tap, press, and drag) and interface component design variations (icon-only, low contrast, different shape, and enlarged button) affect gait kinematics in young adults during smartphone use while walking. Thirty-one participants (mean age 25 ± 5 years) performed standardized smartphone interaction tasks while walking along a 9-meter indoor corridor. Gait kinematics were recorded using APDM Opal inertial measurement units (IMUs) placed at the lumbar spine (L5) and both feet, running Mobility Lab software. Measured variables include gait speed, stride length, cadence, double support, swing phase, and lumbar range of motion in three anatomical planes. Data were collected at the Movi-Lab, São Paulo State University (UNESP), Bauru, Brazil. Raw data were processed with a custom Python script applying a 70% temporal overlap criterion to isolate dual-task strides. Statistical analysis was performed using repeated-measures ANOVA with Greenhouse-Geisser correction and Holm post-hoc comparisons in JASP 0.95.4. The dataset includes the organized output files and the analysis code used to process and compile the data.