Investigation of Chronotypes Of Individuals Engaging In Exercise in Terms of Certain Variables

İsmail İlbak1, Burak Gönültaş2, Stefan Stojanovic3, Bojan Jorgic3

J. Sport. Res. and Innov., vol. 1, no. 1, pp. 48-55, February 2024

1İnönü University, Institute of Health Sciences, Department of Physical Education and Sports, Malatya, Türkiye
2Ege University, Institute of Health Sciences, İzmir, Türkiye
3High Institute of Sport and Physical Education of Kef, University of Jendouba, Jendouba 8189, Tunisia


Background: While it is evident from the literature that inter-individual differences in chronotypes have a significant impact on various variables, it is crucial to continue these studies to gain a better understanding of chronotype mechanisms. In this context, the aim of our research was to examine the relationship between the chronotypes of individuals engaged in exercise and factors such as the timing of their exercises, exercise frequency, and daily sleep duration. Methods: This research was designed using quantitative research methods, employing a survey model. The sample size for this study was determined using G*Power (University of Düsseldorf, Düsseldorf, Germany) software. The population of this study consisted of 800 individuals, with a sample size of 182 individuals. Data collection tools in the study included a demographic information form and the “Turkish form of MESSi” scale, which was developed by Randler et al. (2016) and adapted into Turkish by Demirhan et al. (2019) for assessing morningness-eveningness stability. The data obtained from the research were analyzed using IBM Statistics (SPSS version 25.0, Armonk, NY) software. Results: Findings from the study indicated that when examining the mean scores participants obtained from the Turkish form of MESSi, there was a statistically significant difference only in the Evening subscale in terms of the timing of exercise. However, no statistically significant differences were found regarding exercise frequency and daily sleep duration. Conclusions: As a result of this research, it was concluded that there is a relationship between exercise time and chronotype, and that individuals with Evening chronotype prefer to exercise between 12:00-18:00 in the afternoon and 18:00-24:00 in the evening. Therefore, it can be said that our chronotype is an important factor affecting our choice of time to exercise. It is recommended that future researchers conduct research on this subject with larger sample groups.

Keywords: Exercise Timing, Exercise Duration, Daily Sleep Duration, Chronotype, Circadian Rhythm


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