User blog comment:Flamesword300/SHINIGAMIS POWERS/@comment-44061-20110628202527

Apparently to some degree. Koga's powers stem from his spiritual power. We have seen kenpachi create shockwaves and enhance his on physical ability as well as make himself nigh-invulnerable to attacks. Aizen has similarly augmented his strength and durability. Yamamoto can release fire from his and Hitsugaya can cause cold weather from his. It would seem that most shinigami don't use their abilities in this way for whatever reason. It may take practice or time to develop but they commonly focus their attacks through their zanpakuto which holds their true powers and are easily usable.