Table 1.

Results of linear regression analysis of ARV amplitudes from standing and stimulation protocols (Fig. 3) and for calculated ratio values (Fig. 4). Results where p > 0.05 are shown in italics with r² values omitted.

Subject	Standing		Stimulation		Ratio
	r2	Line equation	r2	Line equation	r2	Line equation
S1	0.91	10.30 + 0.451x	–	69.69 − 0.14x	0.70	0.11 + 0.08x
S2	0.45	4.74 + 0.14x	–	78.46 − 2.59x	–	0.06 + 0.01x
S3	0.45	13.32 − 0.23x	0.81	113.93 − 8.15x	0.88	−0.03 + 0.05x
S4	0.81	5.80 + 0.52x	0.73	19.81 − 1.26x	0.89	0.20 + 0.10x
S5	–	3.08 + 0.03x	0.87	44.63 − 4.00x	0.84	−0.14 + 0.08x
S6	–	8.10 + 0.08x	0.56	126.50 − 5.83x	0.54	0.06 + 0.01x
S7	0.60	14.15 + 1.33x	0.74	172.45 − 12.74x	0.84	0.03 + 0.04x
S8	–	16.67 + 0.63x	0.76	83.20 − 7.33x	0.76	0.02 + 0.10x