MORNING AND AFTERNOON ENERGY EXPENDITURE DURING EXERCISE

Abstract

The purposes of this research were to examine and to compare the morning and afternoon energy expenditure during exercise. The subjects were fourteen student of Physical Education Faculty at Srinakharinwirot University, were selected by using purposive random sampling technique. The subjects were tested for the maximal oxygen consumption and perform the following exercises programs. The data were analyzed in terms of mean, standard deviation and independent sample t-test, then compare mean and standard deviation. The results were as follows: the mean of resting of perceived exertion during exercise between two groups were not statistically significant different, mean of the total energy of carbohydrates and fats during the morning and afternoon exercise for thirty-five minutes were not statistically significant difference. The study during twenty four minutes of exercise found that: the carbohydrates energy expenditure were different between the morning and afternoon exercise, the morning exercise use more carbohydrates energy than the afternoon exercise, whereas the fat energy were not different, and during warm up were not different between carbohydrates and fat energy, whereas during cool down were different of carbohydrates energy, the afternoon exercise use more carbohydrates energy than the morning exercise, but fat energy were not different.

                Conclude that; the morning exercise use more carbohydrates energy than the afternoon exercise, The hormones and metabolic processes of glucose were high in the morning. Exercise after body temperature, mean power and peak power (Souissi et al., 2004) aerobic power (Hill. 1992) time to the exhaustion, peak oxygen consumption and aerobic system response (Hill. 1996), in the after were higher than morning. Because the level of catecholamine. Which stimulates the metabolic processes and increase hormone's new in the burning of fat is highest in the evening (Ayoko. 1995). Therefore, morning exercise will be beneficial in terms of system metabolism new House of glucose and exercise in the evening is effective in burning fat and the body fat mass reduction.

(J. Sports Sci. Technol 2011; 11 (2): 63–79)