Investigating How Smartphone Movement is Affected by Body Posture
summary
Quantitative study measures phone tilt and rotation with a custom web app and onboard sensors (eight tap targets, PCA on summed absolute alpha/beta/gamma movements) using an iPhone 6. Results show lying down produces the most movement, standing the least; grip order from least to most movement is asymmetric bimanual with finger, symmetric bimanual, asymmetric bimanual with thumb, then single‑handed. Data fuels design workshops (60 sketches → 16 concepts), one shifting all actions to the right for single‑hand reachability; paper accepted at DIS.
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chapters (11)
- 0:00Introduction and motivation
- 2:15Hand grips and their variations
- 3:41Previous research overview
- 6:30Body posture study setup
- 8:16Demonstrating body postures
- 10:01Experiment procedure and data collection
- 11:05Key findings on movement and grips
- 11:28Body posture movement results
- 12:11User feedback and preferences
- 13:35Design implications and future work
- 14:57Q&A session
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