Exercise intensity refers to the degree to which physical exercise stimulates human physiology. It is one of the factors that constitute the amount of exercise. Physiological indicators are often used to indicate their size. If the heart rate is used to measure the amount of physical education class exercise in schools, it is generally considered that the amount of exercise below 120 times/minute is small; 120~ 150 times/minute is moderate; 150~ 180 times/min or more than 180 times/min.

Sports, an activity involving physical strength and skills, is bound by a set of rules or habits and is usually competitive. There has never been a cosmic movement in time and space, and the cosmic movement has given birth to everything. There is no object that does not move, and there is no movement that can leave the object. Movement is conservative, that is, it can neither be created nor destroyed, but its concrete forms are diverse and can be transformed into each other, and the total amount of movement remains unchanged during the transformation.

Don't eat within 50 minutes before and after exercise, you can add some water appropriately, keep the indoor temperature at about 20 degrees, and don't have strong winds blowing directly to the practitioners. Indoor light is suitable, neither too bright nor too dark. To reduce the difficulty for the first time, the heart rate should be controlled at 60- 100 beats/min. If allowed, people with chronic physical diseases should be accompanied by private teachers or family members. Women with no exercise history and menstrual dysmenorrhea should not practice. It is best to take a bath after a 30-minute break, especially in summer, which is easy to get heatstroke.

Second, what are the moderate-intensity aerobic exercises?

What is aerobic exercise?

It has become common sense that life lies in exercise. Having a good body is the most basic condition for enjoying life, and I believe no one will object.

Aerobic exercise refers to long-term exercise (endurance exercise), which can fully and effectively stimulate the heart (blood circulation system) and lungs (respiratory system) and improve cardiopulmonary function. So that all tissues and organs of the whole body can get good oxygen and nutrition supply and maintain the best functional state.

Common ways are long-distance running, skipping rope and swimming.

Fast walking, jogging, boating, mountain climbing and cycling. Generally speaking, the heart rate should reach 50%-60% of the maximum heart rate, and the exercise time should be 30-40 minutes. In the gym, it is advisable to sweat.

When the strength and body can adapt, increase the speed appropriately and consume more energy.