Manager Mike Scioscia emphasized the need for Kazmir to stick to "very aggressive" workout and conditioning programs. The 26-year-old left-hander entered Saturday night's start 9-14 with a 5.84 ERA.
"He was on a meteoric rise of his career," Scioscia said. "Obviously he's had some injuries that have set him back, some mechanical issues. He's totally committed himself to an offseason change in the dynamics of how he works out."
Kazmir trained at home in Houston last season. He suffered a hamstring injury in a home workout and he felt fatigue in his left deltoid muscle in March during Spring Training.
Kazmir missed 30 games because of two trips to the DL in the regular season.
"He has worked out hard, but I don't think he's worked out very wisely on some of the choices he's made and some of the things that he's done in the offseason," Scioscia said. "I think he's learned from his experience and he'll be better off for it."
Scioscia said Kazmir also needs to regain his slider, which has become "a ghost pitch."