The heartbeat of normal people is between 60 and 80, that of athletes is about 55 to 60, and the basic heartbeat of some excellent athletes can reach about 45 in the morning. But there are no adverse reactions, because their heart has a large stroke output, which means that every time he beats, the blood delivered to the whole body is twice that of ordinary people.
According to your situation, I take myself as an example. I am a semi-professional athlete. Now I am 22 years old. My basic heartbeat is usually around 55 in the morning, and I keep it around 60 when I don't exercise. But when I do strenuous exercise, I can immediately mobilize my heart, and the number of natural heartbeats increases rapidly. 100 meters running down, the heart rate can reach about 200 times. But the key is your ability to recover your heartbeat after exercise.
You can do an experiment, which is an experiment of exercise physiology in our class, to monitor heart rate and evaluate heart function. Steps: Take a 5-minute rest before exercise to calm down your body, then raise your hands horizontally in front of you, squat at a speed of once per second (the calf is attached to the thigh), take a 5-minute rest immediately after several squats, and then measure your heart rate at this time. If the heart rate can drop to 1.5 times the resting heart rate after 5 minutes, then your heart function is fine. The closer the resting heart rate is, the better the heart function is.
In addition, with the increase of age, the maximum heart rate during exercise will gradually decrease, and "220- age" is usually used to represent the maximum heart rate of people of different ages. Generally speaking, the maximum heart rate of children aged 10 is about 2 10 beats per minute, adults aged 30 are about 190 beats per minute, middle-aged people aged 50 are about 170 beats per minute, and elderly people aged 70 are about 65,438 beats per minute. Therefore, when calculating the exercise intensity according to 60% of the maximum heart rate, the heart rate of 30-year-old adults should reach 1 14 times per minute, the heart rate of 50-year-old middle-aged people should reach 102 times per minute, and the heart rate of 70-year-old people should reach 90 times per minute in order to get effective cardiopulmonary function training. Of course, this is only a simple classification, and it needs to be matched with other items such as maximum oxygen uptake to be more accurate. ....
Having said so much, I hope it will help you!