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Fig. 2 | BMC Anesthesiology

Fig. 2

From: Decreased heart rate variability responses during early postoperative mobilization – an observational study

Fig. 2

Autoregressive model of the frequency spectrum of heart rate variation before (panel A) and 6 h after surgery (panel B) for a single THA patient in the sitting position. Dark grey areas represent low frequency variation (0.04–0.15 Hz) and light grey areas represent high frequency variation (0.15–0.40 Hz). PSD; power spectral density, Hz, Hertz; s; seconds

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BMC Anesthesiology

ISSN: 1471-2253

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