Evaluation of behavioral states among morning and evening active healthy individuals.
The Horne-Ostberg questionnaire partly covers some factors that may be important determinants of peak time and characterize patterns of behavior. We conducted a study for the evaluation of self-reported behavioral states (hunger sensation, availability for study, physical exercise, solving daily problems, and time preferences) as expressions of underlying cyclic activity. Three hundred and eighteen community subjects without history of medical, psychiatric, or sleep disorders were evaluated in a cross-sectional design. A self-report about daily highest level of activity was used to categorize individuals into morning, evening, and indifferently active. Time-related behavioral states were evaluated with 23 visual analog questions. The responses to most analogic questions were significantly different between morning and evening active subjects. Logistic regression analysis identified a group of behaviors more strongly associated with the self-reported activity pattern (common wake up time, highest subjective fatigue, as well as wake up, bedtime, exercise and study preferences). These findings suggested that the patterns of activity presented by normal adults were related to specific common behavioral characteristics that may contribute to peak time.
Curso de Pós-Graduação de Medicina Interna, Faculdade de Medicina, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brasil.
M P
MP
Hidalgo
A
A
Camozzato
L
L
Cardoso
C
C
Preussler
C E
CE
Nunes
R
R
Tavares
M S
MS
Posser
M L F
ML
Chaves
D000293:Adolescent; D000328:Adult; D000704:Analysis of Variance; D001143:Arousal; D001683:Biological Clocks; D002940:Circadian Rhythm / Q000502:physiology*; D003430:Cross-Sectional Studies; D015444:Exercise / Q000502:physiology; D005260:Female; D006801:Humans; D016015:Logistic Models; D008297:Male; D012890:Sleep; D011795:Surveys and Questionnaires