Afterload is increased when aortic pressure and systemic vascular resistance are increased, by aortic valve stenosis, and by ventricular dilation. When afterload increases, there is an increase in end-systolic volume and a decrease in stroke volume.
Best Answer: Sharks typically swim with the even, liquid grace of a creature completely at home with its place in the Universe. Large sharks generally cruise at a leisurely 1.5 miles (2.4 kilometres) per hour.Because most species fare poorly in captivity, the maximum swimming speed of a shark has seldom been measured.f, as Thorburn and Bhana attest, the shark did indeed start from a standstill-which seems behaviorally unlikely-to cover the stated distance in the stated time, the little Mako must have achieved an acceleration of at least 50 feet (15 metres) per second, per second.
Answer: In a race among the sharks, the shortfin mako shark (Isurus oxyrinchus) would be the winner. The robust, streamlined shortfin mako shark is reported to have been clocked at 22 mph, although some sources say it can reach up to 60 mph.This may be because it is capable of chasing even quicker fish, the sailfish and swordfish, which can reach speeds over 60 mph (when leaping).The mako can also perform giant leaps of up to 20 feet out of the water. Sources: 1  R. Aidan Martin.he robust, streamlined shortfin mako shark is reported to have been clocked at 22 mph, although some sources say it can reach up to 60 mph.