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.
whale sharks are slow swimmers and their top speed is no more than 5 miles 8 kilometers per hour probably due to the fact that whale shark is the biggest fish in the world it reaches a length of 40 ft 12 m and weighs up to 13 tons 12 metric tonsgreat white sharks are one of the fast movers in waterormally sharks swim at a speed of less than 5 kph but few species such as mako sharks are able to cruise at a speed of 48 kph makos are the world s fastest swimmers