First, high-impact aerobics
High-impact aerobics is a kind of traditional aerobics, which often jumps on one foot or both feet and consumes a lot of energy. Cardiopulmonary exercise is also effective. But for some people who seldom exercise and are overweight, and those who are in the initial stage, it may be unacceptable because of too much exercise and too much stimulation to the heart and lungs. In addition, excessive jumping makes the lower limbs collide with the ground, which is easy to cause damage to the joints and spine of the lower limbs.
Second, low-impact aerobics
The concept of low impact is developed for the damage caused by the impact of aerobics movements. The so-called low impact is mainly to delete the jumping movements with both feet off the ground at the same time and replace them with other rhythmic aerobics movements with both feet off the ground at different times, such as low kicking, striding, left-right rotation and sprinting. Even if there are steps, jumps and kicks, it will not exceed 4 times in a row. Since the activity of lower limb muscles decreases, it is necessary to increase the arrangement of upper limb activities and even strengthen the activity of trunk muscles to make up for the lack of exercise.
Low-impact aerobics has replaced high-impact aerobics because it can reduce the chances of athletes being injured. Although the low-impact exercise is mild, it can maintain the exercise intensity (60%-80% of the maximum heart rate), provide enough stimulation and exercise the heart and lungs because it lasts for 15 to 30 minutes.
Knowing more about the contents of efficient aerobic exercise can help us exercise more efficiently and achieve better exercise results. On the one hand, it can help us lose weight, at the same time, it can also help us shape effectively, and it is also very helpful for us to improve our immunity.
1. PE teacher lesson plan template 2022
1. Teaching objectives, tasks and requirements for this semester
Grasp the basic knowledg