Table 1 Summary of clinical hand and arm assessments that require coordination between upper extremities
Assessment | Tasks involving the use of both arms | Indirect measure of interlimb coordination |
|---|---|---|
Assisting Hand Assessment (AHA) [75] | 22 object-related items of bimanual performance | Score and textual description |
Chedoke Arm and Hand Activity Inventory (CAHAI) [76] | CAHAI-7  1. Open jar of coffee  2. Call 911  3. Draw a line with a ruler  4. Pour a glass of water  5. Wring out washcloth  6. Do up five buttons  7. Dry back with towel CAHAI-8  8. Put toothpaste on toothbrush CAHAI-9  9. Cut medium resistance putty CAHAI-13  10. Zip up zipper  11. Clean a pair of eyeglasses  12. Place container on table (8.6 kg container)  13. Carry bag up stairs (2 kg) | Score each task from 1-7, based on how independently the patient can do the task. Additional entry for which activity was done by the impaired side |
The Jebsen Test of Hand Function (JTHF)-modified [77] | 1 bimanual item: nut & bolt assembly | Time (speed, not quality of performance) |
SHAP [78] | 6 bimanual coordination items: button board, simulated food cutting, jar lid, glass jug pouring, lifting a tray, rotating a screw | Time, grip used |
Purdue Pegboard Test [79] | Peg insertion with both hands simultaneously | Number of pins inserted in board in 30Â s |
Nut & bolt assembly (both hands in sequence) | Number of assemblies in 1Â min (right and left hands working simultaneously but each doing a separate task:get pin, put washer, put cap, put washer) | |
24/26 tasks require bimanual coordination; questionnaire only | Easy/difficult/impossible | |
24/36 tasks require bimanual coordination; questionnaire only | Easy/a little hard (takes long/pain/…)-very hard (can do but usually someone else will do for me)/ I can’t do/NA (did not do before injury) |