1. I did exercise after a long time so my muscle has been knotted.

2. it was the first time I did exercise in a long time, so my muscles are in a knot.

3. My muscles are stiff because I did exercise after a long interval.  

4. i got a cramp thanks to a hard work-out.  

5. Since I did the exercise for a long time, my muscles are cramped up.  

안녕하세요 Jin님, 저희 홈페이지에 방문해주신것을 환영합니다

오시자마자 글도 올려주셨네요 ~? 하핫, ! 앞으로도 많은 관심 부탁드리고요,

질문에 대한 답변 5가지 드렸는데 영어공부하시는데 많은 도움되시길 바랍니다.

좋은하루되세요 ~^^*