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Table 1 Cardiac time intervals measured by pulsed wave doppler echocardiography

From: Low cardiac output as physiological phenomenon in hibernating, free-ranging Scandinavian brown bears (Ursus arctos) – an observational study

  Active state Hibernating state P-value
Ejection time (ms) 200 (±18.6) 256 (±16.9) 0.005
Diastolic filling time (ms) 571 (±103) 2217 (±858) 0.02
IVRT + IVCT (ms) 363 (±30) 583 (±61) 0.006
Tei index 0.77 (±0.10) 1.28 (±0.29) 0.07
  1. IVRT = isovolumetric ventricular relaxation time, IVCT = isovolumetric ventricular contraction time.