Extension
/ɪkstɛnʃʌn/
1. [noun] 1. the movement by which the two ends of any jointed part are drawn away from each other, or 2. the bringing of the members of a limb into or toward a straight condition. See: https://medical-dictionary.thefreedictionary.com/extension ; Accessed June 10 2019 Another way of considering "extension" is that it increases the angle between articulating bones. For instance when we sit on a chair, our legs is usually left at a 90 degree posture. If we extend our legs while sitting, and they are held straight out, they take on a 180 degree posture. This is in opposition to flexion
Source: https://medical-dictionary.thefreedictionary.com/extension
Frequently Asked Questions
How does extension differ from its counterpart movement, especially regarding the foot joints?
Extension increases the angle between bones, while its counterpart, flexion, decreases that angle. In the foot, extension is observed when joints such as the toe joints straighten, illustrating the movement by drawing the bones apart.
Could you provide an everyday example that shows extension in the context of foot movements?
Imagine straightening your toes after a slight curl during a casual walk. This act of straightening the toe joints is an example of extension, where the joint angle increases as the toes spread out.
How does understanding Latin roots help in remembering the concept of extension in foot movements?
The word extension derives from the Latin 'extendere', meaning 'to stretch out.' This origin emphasizes the concept of drawing apart or straightening, a key idea when visualizing how the foot or toe joints move into extension.