You actually want to walk briskly more than run... running actually deteriorates muscle. Just keep your thermo temp up and have a Target Heart Beat (depends on age) Easy calculator here (
http://www.naturalphysiques.com/tools.php?itemid=2 )
Alot of people do not know that creatine is actually in your body naturally, its actually discharged out of your body when you ejaculate, but supplement wise I recommend Kre-Aklyn, regular creatine (creatine-mono hydrate) retains too much water. Which will give you size results temporarily. But Kre-Aklyn will give you more strength and leaner muscle.