because when you exercise your muscles require more oxygen so your heart will beat faster to get the oxygen to the mucsles. since your blood goes through the lungs and your heart is beating faster you must breathe faster to get a sufficient amount of oxygen.
You would breathe faster because your musles are not used to the exercise, and require more oxygen. because at a speed or position when your body is moving that is different than it is normally you breathe faster. Oh by the way I am 78% sure I am right about this answer
oxygen
Your body needs more oxygen after and during exercise.
When you exercise you breathe heavier and faster, your heart beats faster, your muscles hurt, and you sweat. These all relax when you finish exercising.
We breathe faster when we exercise to increase the amount of oxygen available to our bodies.
when you breath faster you heartrate goes up what make breath heavier.
strength training
When doing push-ups, it is important to breathe in as you lower your body towards the ground and breathe out as you push yourself back up. This helps to stabilize your core and maintain proper form during the exercise.
We breath faster after doing exercise so our hearts can pump more blood around our body as we need it.
During exercise, your body uses energy. This process requires oxygen. So, if you exercise you pant, or breathe harder, in order for your body to draw in more oxygen.
You're an alien! Joking, It might just mean the exercise you're doing isn't challenging your body.
Because your muscles require more oxygen when active, therefore, the lung must go faster to increase your intake.