Touch-Typing for Ones w/ Stressed Hands &/or Sensory Issues

The point of touch-typing is in having your hands dangle in the middle of the keyboard while your fingers rest on certain keys (home keys). To enter a letter you need to reach the appropriate key with the closest finger. The thumbs take care of the space bar. Now, let me spell this out

r e a l - s l o w - f o r t h o s e w h o h a v e n ' t g r a s p e d i t. Your eight fingers (thumbs don't count) rest in the center of the keyboard (on the predefined home keys), from which they move only to satisfy a serious (or less so) need i.e. to peck some other key. While doing this only one finger moves - the nearest. After having completed the action the finger returns to its home key.