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논문 기본 정보

자료유형
학술저널
저자정보
저널정보
한국체육과학회 한국체육과학회지 한국체육과학회지 제14권 제2호
발행연도
2005.8
수록면
789 - 797 (9page)

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초록· 키워드

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The objective of this chapter was to monitor the change in RPP with time during maximal isometric exercise in normotensive young men. Furthermore, this chapter compared HRV using power spectral analysis to clarify the influence of contraction time on cardiac autonomic balance. Fourteen healthy normotensive students participated in this study. Each subject stood upright, contracting the biceps brachii against a load (4 ㎏) applied to the wrist downwards with the elbow at an angle of 9° until exhaustion. SBP was measured at rest and every 2 min during exercise. The R-R intervals of the ECG were measured and spectral analysis of HRV was performed by a fast Fourier transformation method. The SDNN, IF, HF and LF/HF were calculated. The RPP cuvilinearly increased with exercise, basically the same as responses of HR and SBP. The RPP at exhaustion increased 131% from that at the start, whereas the HR and SBP increased only 111% and 118%, respectively. SDNN, HF and LF/HF remained unchanged during the maximal isometric exercise. These results suggested that the balance of the SNS and PNS activity did not alter from the beginning to exhaustion during isometric exercise.

목차

Abstract
Ⅰ. Introduction
Ⅱ. Methods
Ⅲ. Results
Ⅳ. Discussion
References

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UCI(KEPA) : I410-ECN-0101-2009-692-016618670