Yes. Even for a young athlete, 280 is too high.
Um, you may be thinking of Blood Pressure... If so a Systolic Blood Pressure of 280 over a Diastolic Blood Pressure of 180 is possible, albeit pathologic.
In general, the larger the animal is, the slower is its resting heart rate. Great whales (the largest animals) have resting heart rates around 7 beats per minute (bpm), according to Gordon Ramel (http://www.earthlife.net/mammals/blood.html), who also notes that some smaller animals have even lower heart rates while hibernating (for example, the European hedgehog, which slows from 200-280 bpm while active to around 5 bpm while hibernating). (It's a good bet that there is some other animal with an even slower hibernating heart rate -- you might want to research this question a bit more). Cold-blooded animals slow their hearts dramatically at low temperatures. At http://www.peteducation.com/article.cfm?cls=17&cat=1848&articleid=295 you can read about how crocodiles, for example, slow their hearts from 24-40 bpm in daytime (28C) to 15-20 bpm at night (18C), and to as slow as 1 bpm at 10C (which is pretty cold for a croc). At the other extreme, shrews have an average heart rate of 800 bpm and a peak rate over 1300 bpm. George Moody Harvard-MIT Division of Health Sciences and Technology
about 280 C.....
$280
pantone 280 ral nr
Um, you may be thinking of Blood Pressure... If so a Systolic Blood Pressure of 280 over a Diastolic Blood Pressure of 180 is possible, albeit pathologic.
%rate = (38 ÷ 280) x 100% = 13.57%
Hedgehogs are small mammals, native to Africa. The normal heart rate for a hedgehog is anywhere from 180 to 280 beats per minute.
percent of 400 is 280 = 70%% rate:= 280/400 * 100%= 0.70 * 100%= 70%
% rate:= 70/280 * 100%= 0.25 * 100%= 25%
ANSWER: 14.29%% rate:= 40/280 * 100%= 0.1429 * 100%= 14.29%
% rate = 35% = 98/280 * 100% = 0.35 * 100% = 35%
280 mg
percentage = 36.36%% rate:= 280/770 * 100%= 0.3636 * 100%= 36.36%
percentage = 50%% rate:= 280/560 * 100%= 0.50 * 100%= 50%
When a hedgehog is threatened it will normally run away, but as a last resort it will roll up into a prickly ball. The normal heart rate of a hedgehog is 200 to 280 beats per minute.
The heart rate of a hedgehog (or any animal) is dependent on a number of environmental factors. But on average, studies have shown that a hedgehog's resting heart rate is in the range of 190 to 280 beats per minute and about 147 beats per minute when sleeping.