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Table 1 Syn and BR during spontaneous breathing and 2/2 and 4/4 breathing patterns

From: Increased cardiorespiratory synchronization evoked by a breath controller based on heartbeat detection

  Spt 2/2 4/4
Syn (s) 19.79 ± 3.59 84.43 ± 10.77*** 60.85 ± 14.39**
RSA (ms) 76.84 ± 6.91 56.10 ± 6.38** 137.97 ± 11.71***###
BR (min) 14.82 ± 0.62 18.73 ± 0.59*** 9.51 ± 0.25***###
  1. Data are presented as the mean ± SEM
  2. Spt, spontaneous breathing; 2/2, 2/2 breathing pattern; 4/4, 4/4 breathing pattern; Syn, synchronization time; RSA, HR Max minus HR Min; BR, breath rate
  3. ** and *** p < 0.01 and p < 0.001, respectively, vs the spontaneous breathing pattern (paired t test). ### p < 0.001, respectively, for a comparison of the = 4/4 breathing pattern and the 2/2 breathing pattern
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