ABSTRACT
Although strain is indicated among the criteria affecting mood and behavior, performance, as well as physiological effort, the majority of strain analyses have only considered psychological parameters (supported by a wide range of questionnaires). One of the most striking developments in the field of strain analyses over the past decades is the advance in ambulatory assessment techniques. The progress in ambulant techniques has permitted the assessment of behavioral, emotional, and activational interaction with workload under real work conditions. Moreover, carryover effects of workload on activities, behavior, and strain after work as well as on recovery effects during the night can be measured. This means an enhancement of the load-strain paradigm from shortterm effects, such as fatigue, boredom, vigilance, etc., to the long-term effects of work, such as disturbed recovery processes after work, and to long-term effects, such as cardiovascular health diseases, diabetes mellitus, depression, etc.
