<P>PROBLEM TO BE SOLVED: To provide an apparatus, a method, and a computer program for measuring the physical activity level of a human being. <P>SOLUTION: This apparatus comprises: a movement sensor (114) to be attached to an upper limb of the human being for measuring upper limb movements; and a processing unit (100) connected to the movement sensor (114) for filtering upper limb movements following one another more frequently than a predetermined threshold period from upper limb movements during a measurement period, for forming the number of upper limb movements during the measurement period from the filtered upper limb movements during the measurement period, and for measuring the physical activity level on the basis of the number of upper limb movements during the measurement period formed from the filtered upper limb movements during the measurement period. <P>COPYRIGHT: (C)2005,JPO&NCIPI 
APPARATUS, METHOD AND COMPUTER PROGRAM DISTRIBUTION MEDIUM FOR MEASURING PHYSICAL ACTIVITY LEVEL OF HUMAN BEING