There are many physical activities to participate in as part of the SCA. These range from donning armor or picking up a rapier, to loosing an arrow or throwing an axe at a target, to galloping astride your gallant steed.
The Office of the Earl Marshal is in charge of Martial Arts activities across the Kingdom and the running of tournaments for participants to test their mettle against each other.
Contacts

Earl Marshal
Sir Ronan na f-fiacal mac Connail
earlmarshal@outlands.org
Kingdom Rapier Marshal
Master Ian Raven of Tadcaster
northseneschal@outlands.org
Kingdom Equestrian Marshal
Lady Amina al-Zhara
equestrian@outlands.org
Emergency Deputy
vacant
earlmarshal@outlands.org
Archer General
Earl Mika Longbow
archergeneral@outlands.org
Kingdom Minister of the Lists
Baroness Morgan Cheyney
mol@outlands.org