muscles rupture

I was preparing for the kendo promotion next month.I ruptured my leg muscles while exercising, so I went to the clinic for treatment, a cast and crutches. So I am tired and tired. And I reflected on the difficulties of the disabled.
I'm sorry for causing inconvenience to my family with my injury.

Correction:

 I have been preparing for my kendo promotion for next month. Suddenly, my leg muscles were ruptured while doing exercise. So, I went to the clinic for treatment, and they gave me cast and crutches. I am tired and reflect on the difficulties of being disabled.

I sincerely apologize for the inconvenience to my family regarding with my injury.