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.
lactic acid accumulation
Because if you run alot, the n your muscles get really tired, even though it really is sore, this helps your muscles to become stronger because they have excersized more
predicate nominative
When you exercise you use your muscles and your muscles contain Glycogen which could be considered your "energy source". during exercise your muscles use glycogen depleting your energy levels making you feel tired.
If cardiac muscles become tired, they may not be able to pump blood effectively, leading to symptoms such as decreased exercise tolerance, shortness of breath, and an increased risk of heart failure. It is important to address the underlying cause of fatigue in the cardiac muscles to prevent further complications.
Even the strongest muscles can get tired if they are overworked. When muscles get tired, they may become cramped or experience pain. It is best to refrain from exertion when the muscles start hurting.
there is force that makes your muscles tired
Your muscles swell up after exercise. This happens largely because there is increased blood supply to the muscles. Resting muscles get half litre of blood per minute. After exercise the muscles get twenty litres of blood per minute.
muscles get tired, reaction is slowed up and circulation of the blood increases
When we are tired, our muscles can become fatigued, including the muscles around our lips. This fatigue can lead to trembling or shaking of the lips as they struggle to maintain control and coordination. It's a common physical response to exhaustion.
All exercises eventually make muscles tired.
You can sooth tired muscles by getting a massage, or massaging the effected muscles yourself. You can also use a warm compress or icy hot which can help soothe your tired muscles.