Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
On-axis diastolic and systolic displacement (a) normalized to the peak diastolic displacement and the systolic/diastolic ratio computed from the normalized data (b) as a function of time. Error bars give the mean and standard deviation for the entire study population (n = 5 subjects).
