The Association Between Cardiorespiratory Fitness and Reported Physical Activity With Sleep Quality in Apparently Healthy Adults: A Cross-Sectional Study

Abstract

Background: Recently, cardiorespiratory fitness (CRF) has been postulated as an adverse health outcome related to poor sleep quality. However, studies investigating the relationship between CRF with subjective sleep quality index are scarce. Thus, the current study aimed to investigate the association between CRF and Pittsburgh sleep quality index (PSQI) in apparently healthy people. The secondary aim was to investigate the association between reported physical activities (PA) and PSQI. Methods: 33 apparently healthy male participants volunteered to participate. CRF (VO2 peak) was measured via cardiopulmonary exercise testing on a treadmill. A short form of the International physical activity questionnaire (IPAQ) was used to measure PA, and PSQI was used for sleep quality index. Results: There was no correlation between CRF and PSQI total score or any component of the PSQI. Also, there was no correlation between IPAQ and PSQI total score. Categorical data analysis of the two questionnaires revealed that 45.5% of the participants reported low physical activity and poor sleep quality. Conclusions: There was no association between CRF, reported PA with subjective sleep quality index. The use of objective tools for assessing the quality and quantity of sleep should be recommended for future studies as it may clarify the association between CRF and sleep quality.

Association Between Cardiorespiratory Fitness and Incident Purchase of Hypnotic Drugs in Adults: The HUNT Study

“…54,55 However, a cross-sectional study did not find correlation between CRF and sleep quality in a smaller sample of students. 56 Physical activity and CRF are highly interrelated, and PA is the main modifiable determinant of CRF. In general, the greater the activity amount or intensity, the greater the increase in CRF.…”