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Essentially, the way I use it is if itâs a driving movement, ipsilateral produces the greatest power production and stability, meaning the right hand has the right leg back. Contralateral work provides the greatest reach potential for pulling, which means the right hand has the left leg forward or standing on. Funny enough, they both wind up being kind of the same position, which makes it that much easier.
Left, a Neandertal left hand (Shanidar 4). Note the long and powerful thumb. This hand gripped stone tools directly (not hafted to a handle). Right, fingers of an early modern right hand (Qafzeh 9). This hand gripped narrower things like the handles on hafted tools. Both hands are shown with palm facing out, and the two hands are not to the same scale.