My ergomonic keyboard has been so helpful in reducing muscle strain.
I usually just use the regular cheap ones at work.
Ergonomic keyboard
An ergonomic keyboard is a computer keyboard designed with ergonomic considerations to minimize muscle strain and a host of related problems. Typically such keyboards for two-handed typists are constructed in a V shape, to allow right and left hands to type at a slight angle more natural to the human form.
Types.
Types Split keyboard.
A "fixed-split keyboard" is a single board, with the keys separated into two or three groups, allowing the user to type at a different angle than the
involve changing or reducing input device use, improving a user-interface to reduce stress, speeding up a process to reduce the time a user needs to be at the computer, etc.
An example of a tool that changes the impact would be speech recognition. Speech recognition replaces keyboard (and sometimes mouse) input with vocal input. This type of solution can be very helpful at reducing some types of strain, but it's important to recognize that another significant strain may be created.
An example of a tool