Stroke volume and systolic time interval adjustments during bicycle exercise

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Population

17 subjects

Design

Other

Authors

Discussion

May aid noninvasive SV tracking during exercise; leaves open validation for clinical use in cardiovascular patients.

Population

17 subjects

Intervention

Bicycle exercise at 25, 50, and 75% of maximal oxygen uptake (Vo2 max) on a Monark bicycle

Outcome

Changes in cardiac output (Q), stroke volume (SV), heart rate (HR), Heather index (HI), and systolic time interval (STI) valuessurrogate

Changes in systolic time intervals and Heather index provide valuable information on stroke volume adjustment during calibrated exercise efforts.

Jacques Vanfraechem (1979) studied this question.

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