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Average net LV twist and untwist in 11 subjects at rest, lower body negative pressure (LBNP) −20 and LBNP −40 mmHg. Normalized time is on the x-axis, when 0% represents end-diastole and 100% represents time of aorta valve closure (AVC). Time for AVC and mitral valve opening (MVO) are shown by vertical lines.
