Treatment effects were also observed in secondary outcomes ( mean group difference -LSB- @ % CI -RSB- ) : BASDAI : -@ ( -@ , -@ ) , BASFI : -@ ( -@ , -@ ) , arterial stiffness ( estimated median group differences -LSB- @ % CI -RSB- ) : AIx ( % ) : -@ ( -@ , -@ ) , and for PVW ( m/s ) : -@ ( -@ , @ ) , VO@ peak ( ml/kg/min ) ( mean group difference -LSB- @ % CI -RSB- : @ ( @ , @ ) and trunk fat ( % ) : -@ ( -@ , -@ ) .