Author(s): Sumanta Das and Dr. Atanu Ghosh

Abstract:
Biological rhythms are defined as cyclic change that recurs regularly over a given time and circadian rhythm refers to variations recurring periodicity of 24 hours. The purpose of this investigation was to evaluate the influence of circadian rhythm on selected motor fitness and heart rate of the jumper. Ten male jumper (MEAN±SD; age21.77±1.35year; weight61±1.61kg, height162±1.42cm, with 5.0±2.0 year training period) were chosen. The selected motor fitness and heart rate were chosen as variables. One way repeated measure ANOVA was used to find out mean difference is significant or not at three different times of day (8am, 12:00 pm and 4:00pm). Post-hoc test was used to identify differences between three different times of day (08am, 12:00pm and 4:00pm). The result of the investigation showed no significant circadian impact on speed, agility, explosive power and heart rate. Whereas speed, agility, explosive power, heart rate showed significantly mean variation. It is concluded that selected motor fitness and heart rate variables indicated no significant circadian effect of male jumper.

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