Gorilla Arm
A common ergonomic problem with vertical touchscreen devices, referring to shoulder and arm fatigue caused by holding the arm in the air to operate a screen for extended periods. It is often used to criticize vertical touch solutions.
Timeline (last 90 days)
The core reason Apple executives question touchscreen laptops is the 'Gorilla Arm' phenomenon: holding the arm up to vertically touch a laptop screen for a long time causes shoulder and arm fatigue.
悬空手势交互系统面临"大猩猩手臂"（Gorilla Arm）效应，当手臂抬起超过肩膀高度时通常在 2-3 分钟内产生明显肌肉疲劳
长时间抬手指向垂直屏幕导致肌肉疲劳的现象被称为'大猩猩手臂'（Gorilla Arm）效应，最早在 1980 年代提出
All Facts (3)
The core reason Apple executives question touchscreen laptops is the 'Gorilla Arm' phenomenon: holding the arm up to vertically touch a laptop screen for a long time causes shoulder and arm fatigue.
60%Unverified悬空手势交互系统面临"大猩猩手臂"（Gorilla Arm）效应，当手臂抬起超过肩膀高度时通常在 2-3 分钟内产生明显肌肉疲劳
50%Unverified长时间抬手指向垂直屏幕导致肌肉疲劳的现象被称为'大猩猩手臂'（Gorilla Arm）效应，最早在 1980 年代提出
50%