We have performed a new physical conditioning evaluation, called the "Mind-Body Connection Test" by measuring the cardiac autonomic nerves functions using heart rate variability in sitting and standing positions, and respiratory sinus arrhythmia after having deep breathing. [Purpose] The purpose of this study was to compare cardiac autonomic functions in average and worldclass elite athletes. [Method] The subjects were 1) youth (16-18 years old) female archery athletes of World Youth Olympic Games winners, and 2) youth female archery athletes who were tried but not able to compete in National games. The electrocardiogram was measured by the second lead of the chest. The measurement of autonomic functions were carried out for heart rate variability and respiratory sinus arrhythmia according to the following protocol: at rest in the supine position for 5 minutes, deep breathing 5 times, in the supine position for 3 minutes, postural change to standing position, in the standing position for 3 minutes, and deep breathing 5 times. [Results] Both in supine and standing positions, a decrease in heart rate was observed during deep breathing due to hyperfunction of the cardiac parasympathetic nerve and suppression of cardiac sympathetic nerve function in all archery athletes. [Discussion] The difference in the cardiac autonomic nervous function among worldclass elite and average athletes in archery competition seems to reflect their regular habits in daily life.
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