In accordance with the method, system and program of the present invention,
at least one type of exercise indicator signal associated with exercise
performed by a particular user is received from a particular exercise
machine in a common transmittable data format at a portable computer
system provided the particular user. Cumulative fitness activity is
computed and stored for the particular user at the portable computer
system utilizing the at least one type of exercise indicator signal and
previously accumulated fitness activity data at the portable computer
system, such that an independent portable computer system associated with
the particular user monitors the real-time cumulative fitness activity of
the particular user from at least one type of exercise indicator signal
received from at least one exercise machine over a period of time.