Because there is blood pumping through them to deliver glucose and oxygen.
Red blood cells carry oxygen from the lungs to the working muscles. This oxygen is essential for aerobic metabolism, which is the process that provides energy for muscle contractions during exercise.
The muscles do not have enough oxygen for aerobic respiration.
The muscles do not have enough oxygen for aerobic respiration.
This is called aerobic exercise. All aerobic activity requires oxygen.
Aerobic training work with cardio or chest muscles
Because anaerobic respiration releases less energy than aerobic respiration.
Aerobic
Because anaerobic respiration releases less energy than aerobic respiration.
Aerobic exercise means your muscles are getting exercised at a rate where the muscles are not being depleted of oxygen faster than the blood, from the heart and lungs, can supply it. This allows the muscles to work at maximum efficiency. Aerobic exercise will not reduce the strength, size or endurance of muscles, but it will not help increase them. To work on increasing those, exercise needs to be anaerobic/resistive: high load for short periods. It is best to combine resistive and aerobic exercise to achieve all round strength and fitness.
Yes
Walking is primarily an aerobic exercise, as it involves continuous movement that requires oxygen to fuel the muscles.
delivering more oxygen and nutrients to the cells' muscles improves the peripheral circulation, thus making muscles stronger.