Finding Hand Shapes for Double-stops: Those Pesky Thirds!!! [Video]
Using the Theraband to wrap the hand is highly effective for consolidating hand shapes/frames, and for training rapid transitions between them.
First of all, the whole idea of using the arches is that we want to be able to find different configurations of the fingers coming from the palm (arches) as cohesive blocks of shapes — and then being able to switch between these shapes very quickly and lightly; rather than individual fingers swimming about untethered, lost, and often contorted, while still not being able to reach the right positions.
This is a preview post. I'll say more about the details of how to wrap the hand later. For now, observe the following:
There are two different placements of the end of the band: one is around the 2nd finger and the other the 3rd. There are a number of ways to wrap the hand. We all know how certain fingers can't reach back or forward in certain configurations of 3rds! This difference in how I loop the band addresses precisely that issue.
When the pinky stretches, the band wrapped around the base joint helps the student to sense what it means to engage from the base joint, the knuckle. So they're not only aiming with the fingertip.
On the other side (which you cannot see here), the band wraps around the thumb pad. While the thumb should not hold excessive tension, it is an opposable structure and must do much more than simply "relax." Wrapping the pad trains the thumb to engage from its base joint—the exact same concept I discussed in my last post regarding the bow hand as well.
This wrapping technique scales across all levels. All of my students use this method to consolidate fundamental hand frames (e.g., the 1-2-3-4 half-step/whole-step configurations). And in all cases, intonation is greatly improved. It applies just as much to beginners as it does to my own practice.
I recommend using the Theraband for this. In my experience, most other exercise bands are too bulky to deliver the right results.