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Abstract
Continuous monitoring of the heart beats during work and sleep was performed on 12 housewives selected from a group whose daily activities had already been studied by a diary technique (Grievo 1967). Means of the heart rate in work and sleep wore recorded by a Socially Acceptable Monitoring Instrument, SAMI (Baker et al. 1967). Six of the subjects wore an electromechanical counter attached to the SAMI during the day to give a profile of the changes in heart rate during work. Additional information was collected on the housewife's heaviest activities such as shopping, walking and stair climbing.
