Muscle fatigue
As in each time you exercise it takes longer next time before you feel tired? Training. That's all, you are essentially training your muscles to endure activity for longer, so your muscles get better at this endurance.
When you build cardiovascular endurance you increase the ability of your body to absorb oxygen and carry it to the muscles which gives them the ability to perform longer and stronger.
muscles become longer, but thinner
No, muscles do not create new cells over time; they merely generate microscopic 'tears' in the muscle after strenuous activity then fill in the 'gaps' which makes the muscles longer instead of having more cells.
Do you mean "contract". Well, when muscles contract they get shorter and fatter. When they relax they get longer and thinner.
None of the above. A cardiovascular exercise raises your heart rate.
If activity is accelerated in the critical path, then it may no longer be the critical path, assuming some other activity now takes longer.
No. They are two totally different types of muscles. A dancer's muscles are leaner and longer, a weightlifter's muscles are bulky.
Increasing a muscle's endurance can improve its overall performance and strength by allowing it to sustain activity for longer periods of time. This can lead to greater muscle efficiency, improved cardiovascular health, and enhanced resistance to fatigue. Ultimately, improved endurance can help muscles perform better during physical activities and contribute to overall strength gains.
Cycling is primarily an aerobic exercise, as it requires sustained oxygen intake to fuel the muscles during longer rides. However, cycling can also involve short bursts of anaerobic activity, such as sprinting or climbing hills, which rely on stored energy in the muscles without the need for oxygen.
When You use A set of muscles,The blood flows to them so you can exersice longer.
Slow-twitch muscles are better for cardiorespiratory fitness because they are more efficient at utilizing oxygen and can sustain activity for longer periods of time without fatigue. They have a higher capacity for aerobic metabolism, making them well-suited for activities that require endurance, such as cardiovascular exercise. Fast-twitch muscles are more suited for quick, explosive movements and anaerobic activities.