Trying to return from a hamstring injury and get back in football shape, Lacy went through a brief workout of fewer than 30 minutes for scouts from about 20 teams at Alabama's second Pro Day of 2013. Linebacker Nico Johnson, tight end Kelly Johnson and defensive end Damion Square also worked out Thursday.
Lacy's day in the Crimson Tide's indoor facility involved two attempts at the 40-yard dash, cone drills, running pass routes and a quick-hands drill with the Tennessee Titans' Sylvester Croom, a former Alabama player and assistant coach. Lacy said he didn't do the bench press.
Struggling to catch his breath, Lacy needed a break at one point, as a scout wearing a Miami Dolphins shirt asked him, "Are you OK?"
"That was the most intense it's been for me since I've been coming off my hamstring injury and just trying to work myself back into shape," Lacy said afterward.
Each scout records his own time for the 40-yard dash, and according to published reports, most had him in the range of 4.5 to 4.6 seconds. When Lacy was asked what he ran, he said, "I think like a 4.5 maybe."
"During my 40, I was a little nervous about actually opening up, but I ran a pretty good time, so I'm satisfied with that," he said.
Lacy suffered a small tear in his hamstring during a February workout. That took him out of that month's NFL Scouting Combine in Indianapolis. He also missed Alabama's first Pro Day in March.
Lacy said he is close to 100 percent now.
Much of his workout was spent catching passes, with the Dolphins scout serving as the quarterback.
"They wanted to see if I could catch, if I was a good catcher, and I think I proved that today," Lacy said.
He added, "I didn't have a lot of opportunities here at Alabama to show my hands out of the backfield. During the pass drills, I just wanted to go out and show them that I could catch."
Online services are rating Lacy as the top running back available in the draft. The last time a running back didn't go in the first round of the draft was 1963.
Lacy has accepted an invitation to travel to New York for the draft, which will be April 25-27. He originally turned down the chance to be at the draft.
"I don't like big crowds or going to big places so I was going to spend it with my family," he said. "After a while, I started to think, it's not every day you get to go to a draft in New York. So I talked it over with my parents and I was given a chance to go back and we took it."