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Agreement between IH and ECG in time-dependent IBI variations.
| Regular | Regular | Resonant | Resonant | Resonant | Valsalva | |
|---|---|---|---|---|---|---|
| + Music | (4:4) | (4:6) | (5:7) | |||
| Paired t test: | 0.087 | 0.188 | 0.118 | −0.057 | 0.127 | −0.537 |
| (0.93) | (0.85) | (0.91) | (0.95) | (0.90) | (0.59) |
Test statistics and p values (in brackets) computed from the two-sided paired t test for six different breathing exercises performed over a minute-long time interval (d.o.f. = 72–86) by one of the subjects in the SR sample.
