TABLE 1.

Length of cardiac cycle and half-life time of 10 subjects during rest, mild exercise, and moderate exercise.

	Rest		Mild exercise		Moderate exercise
	Length of cardiac cycle (s)	Half-life time (s)	Length of cardiac cycle (s)	Half-life time (s)	Length of cardiac cycle (s)	Half-life time (s)
Subject 1	1.00	1.85	0.66	0.24	0.51	0.15
Subject 2	0.88	0.77	0.67	0.28	0.50	0.17
Subject 3	0.85	1.18	0.64	0.26	0.59	0.19
Subject 4	0.85	1.24	0.69	0.35	0.50	0.16
Subject 5	0.82	0.75	0.58	0.19	0.48	0.16
Subject 6	0.79	1.33	0.63	0.34	0.54	0.20
Subject 7	0.74	1.12	0.59	0.42	0.50	0.27
Subject 8	0.81	1.75	0.61	0.46	0.50	0.27
Subject 9	0.80	1.73	0.65	0.41	0.57	0.27
Subject 10	0.88	1.92	0.65	0.49	0.52	0.31