There is no difference in the number of calories burned on a cross trainer, bike or tredmill if you maintain the same heart rate on all three machines. However, your
perceived intensisty required to maintain a given heart rate may vary for each piece of equipment.
I don't understand why the writer has included the adjective perceived above. Using the word perceived almost makes me think the actual instensity required won't vary, but the perceived intensity will (though this must be incorrect). Wouldn't it be more clear to leave out the word perceived?
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PERCEIVED (adjective) The adjective
PERCEIVED has 2 senses:
1. detected by instinct or inference rather than by recognized perceptual cues
2. detected by means of the senses
Thanks