Arm-Raise Fatigue

Cards in this group · 5

1. A8.19.1Unsupported arm-raise fatigue sets in within tens of seconds
2. A8.19.2Raising the arm higher and holding it longer compound fatigue faster than either alone
3. A8.19.3Muscles show measurable fatigue well before a user admits to feeling tired
4. A8.19.4A usability test lasting minutes ends before arm fatigue has time to show up
5. A8.19.5A button pressed often cannot sit somewhere that forces the arm above shoulder height