Quantifying the Fingers Mechanical Load During Mug Grasping in Different Hand Postures

Key Points

• Joint moments acting on fingers during mug grasping vary by hand posture—higher in lateral than upward or handle gripping.
• Using a detailed hand model, inverse dynamics determined joint moments for three mug grasping postures over simulations.
• Mechanical load differences highlight the ergodynamic implications for individuals with hand-related conditions like osteoarthritis.
• Findings can guide product design and daily living activity recommendations to mitigate finger joint stress.

Abstract