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. 2017 Aug 21;7:8344. doi: 10.1038/s41598-017-08698-0

Figure 4.

Figure 4

The changes of left ventricular stroke volume (LVSV) and heart rate (HR) in each maneuver protocol. *Indicates significant differences between the two ends of the short lines. Recovery phase 1 is the first 5 s post strain, and recovery phase 2 is the second 5 s of recovery. The error bars are standard error and n = 11.