To use BRuCe, click on the BRuCe – bleeds risk calculator tab. Enter data in the YELLOW cells. You will need to enter five numbers:

- The number of bleeds you experienced in the
**last year.** - The amount of time (average number of hours per week) you spent
doing moderate-risk activities
**last year**. Moderate-risk activities are activities in which significant collisions might occur. Examples of moderate-risk activities are running games and soccer. If you need help doing this, click on the Help me enter data button. - The amount of time (average number of hours per week) you spent
doing high-risk activities
**last year**. High-risk activities are activities in which significant collisions might occur. Examples of high-risk activities are skateboard riding and rugby. - The amount of time (average number of hours per week) you expect
to participate in moderate-risk activities over the
**next year**. - The amount of time (average number of hours per week) you expect
to participate in high-risk activities over the
**next year**.

Don’t worry if you can’t give exact numbers – just enter your best estimates.

BRuCe will use the numbers you entered to estimate the expected number of bleeds that will occur in the next year. So you can determine how a change in patterns of physical activity will effect risk of bleeds.

Note that BRuCe only provides estimates of the expected number of bleeds. You can think of these estimates as a "best guess" of the number of bleeds that will be experienced in the next year. The actual number of bleeds cannot be predicted exactly. Nonetheless, the expected number of bleeds is the best way to quantify the risk associated with a change in patterns of physical activity.