HR changes in response to workload, the harder you work the more oxygen is needed. Blood is the transport vessel for that oxygen. Faster HR = more blood and therefore more oxygen.
because they need a change in heart rate.
Does the amplitude of the heart and heart rate always change together
Yes, your heart rate will change your energy levels in many different ways. If you are working out you will have a higher heart rate and this will cause you to be tired after you work out.
It will lower the heart rate.
exercise
Because your heart needs to burn energy, the more energy you burn the faster your heart rate
Chronotropy refers to the heart's ability to change its heart rate. Positive chronotropy increases heart rate, while negative chronotropy decreases heart rate. This is controlled by the autonomic nervous system and various hormones.
Yes!
There are a great number of chemicals that can speed up or slow down the heart rate, as well as chemicals that can change the rhythm of your heart.
yupp. it speeds up.
yes, it makes it increase.
You can change the resistance manually however there is no way to change the rate automatically.