Respuesta :
Heartbeat refers to the pressure applied by the blood on the walls of the vessels. Pressure in arteries is more than in the vein.
At the time of exercise on the elliptical machine, Devin's heart rate beat 178 which is more than his usual heart rate.
Heart rate is increased due to following reasons:-
- Heavy exercise
- Hyper-tension
- Vessels constrictor
Therefore to decrease, the heart rate of Devin's must decrease the duration of his workout and take more rest.
For more information, refer to the link:-
https://brainly.com/question/1155838