Take the tour ×  I'm in good aerobic shape but never did
strength training. Yesterday, I did some basic strength work,
using both dumbbells and machines. Nothing too crazy - I started
light and built my way up. I feel fine today, with a moderate
soreness. But, the one heavy pain I have is that I can't
straighten my arms. I felt this immediately after working out,
and it's only gotten worse. I feel pain on the inside of my arm
(opposite my elbow), even if my arm is relaxed, and if I try to
straighten it, it gets very intense.  I warmed up and cooled
down aerobically, but didn't do any real stretching.  What
causes this? Does it have to do with machines versus dums? What
should I do to avoid this next time?  share|improve this
question This is normal, especially if you never trained. You'll
have less problems as you build up the missing muscles
(alternatively, you could push yourself less, but why do that?).
–  VPeric Oct 27 '11 at 6:55 add comment  2 Answers  This is
most likely DOMS which is normal. Just ice