"I feel good and I didn't have any feeling of pain or anything," said Cruz, who is on the 15-day disabled list with a strained left hamstring.
Cruz knows full well how to deal with the injury, and he knows how much he can push the limits, considering the three stints spent on the DL last year with a strained hamstring, two on his left side.
"No nervousness," Cruz said when asked if he was concerned about pushing off and running.
Cruz said he ran short distances and sprinted a long distance for one run. He said he was "probably at 60 to 70 percent" in terms of the strength of his hamstring.
While Cruz anticipates being able to return once the DL assignment is over next Tuesday, Rangers manager Ron Washington is cautiously optimistic.
"He's coming along quicker than we thought he would be, but we're not going to push him," Washington said. "We didn't expect him to be where he is now. He's already taking batting practice. We're going to ramp [his rehabilitation program] up in Texas, but we don't need to push him."