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Fig. 4 | BMC Cardiovascular Disorders

Fig. 4

From: Heart rate and heart rate variability comparison between postural orthostatic tachycardia syndrome versus healthy participants; a systematic review and meta-analysis

Fig. 4

Frequency domain measure between postural orthostatic tachycardia syndrome versus healthy participants. a illustrates five of twenty eligible studies that compared the frequency domain measure outcome in terms of mean LF. b illustrates seven of twenty eligible studies that compared the frequency domain measure outcome in terms of mean HF. c illustrates five of twenty eligible studies that compared frequency domain measure in terms of mean LF/HF- ratio; d illustrates four of twenty eligible studies that compared the frequency domain measure outcome in terms of mean LF (n.u); e illustrates four of twenty eligible studies that compared the frequency domain measure outcome in terms of mean HF (n.u)

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