Table 3.

Summary Statistics for the Peak Detection and Frequency Analysis Techniques for RR and HR using all Time Points across all Participants.

Signal	Units	Analysis Method	Difference Mean	Difference SD	Difference 95% CI	RMSE	R2
RR	brpm	Peaks	−2.5	2.9	(−8.3; 3.3)	2.5	0.16
		FFT	−0.91	3.3	(−7.5; 5.7)	2.8	0.22
HR	bpm	Peaks	−23	13	(−48; 2.9)	9.9	0.0019
		FFT	−0.50	19	(−39; 38)	9.9	0.0043