Effect of an office worksite-based yoga program on heart rate variability: outcomes of a randomized controlled trial

Table 2 Correlations among measures of heart rate variability and heart rate

	Log RMSSD	pNN50	Log LF power	Log HF power	Log total power	Log LF:HF	Resting HR
Log SDNN	0.91^*	0.76^*	0.75^*	0.76^*	0.83^*	−0.23	−0.48^*
Log RMSSD		0.81^*	0.69^*	0.84^*	0.83^*	−0.44^*	−0.57^*
pNN50			0.73^*	0.85^*	0.82^*	−0.41^*	−0.48^*
Log LF Power				0.80^*	0.92^*	0.06	−0.39^*
Log HF Power					0.94^*	−0.56^*	−0.49^*
Log Total Power						−0.28	−0.44^*
Log LF:HF							0.27

*p < 0.05; SDNN, standard deviation of the normal-normal interval; RMSSD, root-mean-square of the successive normal sinus RR interval difference; pNN50, percentage of absolute differences between successive normal RR intervals that exceed 50 ms; HF, high frequency power; LF, low frequency power; LF:HF, ratio of low frequency to high frequency power; HR, heart rate.

ISSN: 2662-7671