Schiller Park, IL — Hammer Strength extended its series of Hammer Strength Clinics for spring 2009. The national strength and conditioning clinics address training methods and techniques. Clinic speakers include Bob Medina of the Portland Trail Blazers, Mike Clark of the Seattle Seahawks, Shannon Turley of Stanford University, Mark Uyeyama of the San Francisco 49ers, John Sisk of Vanderbilt University and Jason Gallucci of Princeton University. The Hammer Strength Web site,, has dates and locations for the clinics.