The invention relates to a new design for a dumbbell with a dumbbell handle element and at least one holder for removable fastening of one or more weight disks on one end of the dumbbell handle element. In an RF coil provided with a hollow-shaped outer conductive element and a strip-shaped conductive element disposed along the outer conductive element in the axial direction, meander lines constituting the strip-shaped conductive element are disposed at uneven distances from the outer conductive element to secure an internal space. The system has also a mechanical structural arrangement including gears and cables to transfer motor power to engage the rubber ball. This electrical trace bus is electrically interconnected with mirror assemblies in at least one of the rows. A door is disposed on the deck for selectively closing the passageway between the forward passenger area and the rearward passenger area. Pharmaceutical compositions containing the KPI analogues, along with methods for using such compositions, are useful for ameliorating and treating clinical conditions associated with increased serine protease activity, such as blood loss related to cardiopulmonary bypass surgery.