Evidence-Based Complementary and Alternative Medicine / 2017 / Article / Tab 3

Research Article

Musical Auditory Stimulation Influences Heart Rate Autonomic Responses to Endodontic Treatment

Table 3

Mean and standard deviation of SBP, DBP, and cortisol in T1 and T4, heart rate, RR interval, and linear indices in T1, T2, T3, and T4 in subjects with auditory stimulus.

VariableT1T2T3T4Value p

SAP (mmHg)0.6085
DAP (mmHg)0.0288
Cortisol (ug/dl)0.0577
HR (bpm)0.0066
RR (ms)0.0014
SDNN (ms)0.0237
RMSSD (ms)0.0240
pNN50 (ms)0.1033
RRtri (ms)0.6246
TINN (ms)0.0320
SD1 (ms)0.0310
SD2 (ms)0.0336
LF (ms2)0.0004
LF (nu)0.0982
HF (ms2)0.3741
HF (nu)0.1007
LF/HF0.1391

< 0,05: versus T1; < 0,05: versus T4. ms: milliseconds; bpm: beat per minute; mmHg: millimeters of mercury; ug/dl: micrograms per deciliter; nu: standard unit; ms2: absolute unity; SDNN: standard deviation of all normal RR intervals; pNN50: percentage of adjacent RR intervals lasting difference greater than 50 milliseconds; RMSSD: square root of the mean square of differences between adjacent normal RR intervals; LF: low frequency; HF: high frequency; LF/HF: ratio low frequency/high frequency; RRtri, triangular index; TINN, triangular interpolation of RR intervals; SDI: standard deviation of the instantaneous variability of the beat-to-beat heart rate; SD2: standard deviation of long-term continuous RR interval variability; SD1/SD2 ratio: ratio between the short- and long-term variation of the RR intervals.

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