20/03/2023
Arches of the hands- Like web space, the arches of the hands are an anatomical feature, but we can develop them through hand strengthening activities and exercises. There are three main arches of the hands–two that run from the hypothenar eminence (ulnar side) to the thenar eminence (radial side), and one that runs transversely up the middle of the palm. Of the two arches, one runs just below where the fingers meet the metacarpals, and the other on the bottom of the palm from the outside heel of the hand to just under the thumb.
The main purpose of these arches is to allow for opposition of the thumb to the fingers, and for various power and precision grasp patterns. These arches are also what allow you to form a functional “C” shape with your hand.
When the arches are underdeveloped, this functional position appears “flat”, thumb to finger opposition and dexterity skills decrease.
The arches are needed for endurance in tasks like coloring, writing, and other fine motor activities. The curved palm is needed for tasks which require the palm to cup items such as small objects, coins, beads, water, or other things which can be held in the palm of a “cupped” hand. Here is an activity to improve arch development and intrinsic hand strength.
And don’t forget to grab the Spring Fine Motor Kit for more hand strengthening activities! https://www.theottoolbox.com/product/spring-fine-motor-kit-deal/