The Western Ontario Shoulder Instability Index (WOSI)

Section A: Physical Symptoms

The following questions concern the symptoms you have experienced due to your shoulder problem. In all cases, please enter the amount of the symptom you have experienced in the last week. (please move the slider on the horizontal line.)

1. How much pain do you experience in your shoulder with overhead activities?
2. How much aching or throbbing do you experience in your shoulder?
3. How much weakness or lack of strength do you experience in your shoulder?
4. How much fatigue or lack of stamina do you experience in your shoulder?
5. How much clicking, cracking or snapping do you experience in your shoulder?
6. How much stiffness do you experience in your shoulder?
7. How much discomfort do you experience in your neck muscles as a result of your shoulder?
8. How much feeling of instability or looseness do you experience in your shoulder?
How much do your compensate for your shoulder with other muscles?
10. How much loss of range of motion do you have in your shoulder?

Section B: Sports/Recreation/Work

The following section concerns how your shoulder problem has affected your work, sports or recreational activities in the past week. For each question, please move the slider on the horizontal line.

11. How much has your shoulder limited the amount you can participate in sports or recreational activities?
12. How much has your shoulder affected your ability to perform the specific skills required for your sport or work? (If your shoulder affects both sports and work, consider the area that is most affected.)
13. How much do you feel the need to protect your arm during activities?
14. How much difficulty do you experience lifting heavy objects below shoulder level?

Section C: Lifestyle

The following section concerns the amount that your shoulder problem has affected or changed your lifestyle. Again, please indicate the appropriate amount for the past week by moving the slider on the horizontal line.

15. How much fear do you have of falling on your shoulder?
16. How much difficulty do you experience maintaining your desired level of fitness?
17. How much difficulty do you have “roughhousing” or “horsing around” with family or friends?
18. How much difficulty do you have sleeping because of your shoulder?

Section D: Emotions

The following questions relate to how you have felt in the past week with regard to your shoulder problem. Please indicate your answer by moving the slider on the horizontal line

19. How conscious are you of your shoulder?
20. How concerned are you about your shoulder becoming worse?
21. How much frustration do you feel because of your shoulder?