For the average bodybuilder, 50~80 minutes of regular training is more than enough. Ronnie coleman, the king of bodybuilding, spends about 1 hour to 1.5 hours in strength training every time.
In addition, if the time is too long and the intensity is not enough, it will easily lead to overtraining, which will not only affect the next training, but also lead to injuries. Students have a class for 45 minutes, because after 45 minutes, they will lose their concentration. If the exercise time is too long, it is not only difficult to increase the intensity, but also easy to get hurt.
Fitness is a kind of exercise, such as all kinds of unarmed aerobics, rhythmic gymnastics, rhythmic gymnastics, and all kinds of self-resistance movements. Gymnastics can enhance the strength, flexibility, endurance, coordination and control of all parts of the body, thus making the body strong. If you want to relieve stress, exercise at least three times a week.
Swimming, brisk walking, jogging, cycling and all aerobic exercises can exercise the heart. Aerobic exercise has many benefits: it can exercise the heart and lungs, enhance the function of the circulatory system, burn fat, increase vital capacity, lower blood pressure, and even prevent diabetes and reduce the occurrence of heart disease.
References:
Fitness Baidu encyclopedia