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Derek tore a muscle in his leg and fell.

Hi,

Does "tore" in the above amount to "broke" or "sprained?" Thanks.
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broke isn't used with muscles.

Torn muscle = strained muscle (but sounds more serious)

Sprain - theoretically this applies to ligaments rather than muscles, but a lot of people use it interchangeably with strain.

rend - not used with parts of the body.
Comments  
"Tore" amounts to "rent".

Derek has damaged his leg muscle by tearing or rending.
 nona the brit's reply was promoted to an answer.