Precautions and tips for swimming to lose weight

　　When a person swims in the water, he strokes with his arms and kicks or kicks with his legs at the same time. All the muscle groups of the whole body take part in the activity, which can promote good muscle contraction of the whole body. exercise . In particular, the pectoralis major, deltoid muscles, triceps muscles and the back muscles of the upper body related to the swing and stroke of the upper limbs will become more developed. At the same time, swimming is a cyclical movement. Stroking and kicking alternate between tension and relaxation. Long-term exercise will make the muscles soft and elastic. Because of this, female swimmers often have plump and strong breasts, elastic muscles, and a well-proportioned and curvaceous body.

　　Swimming helps lose weight

　　When swimming, because the density and heat conductivity of water are greater than those of air, more energy is consumed than on land. The supply of these energy must be supplemented by consuming sugar and fat in the body. Regular swimming can gradually remove excess body fat without becoming obese. Therefore, swimming is one of the effective ways to lose weight.

　　Sunlight and air also make people swim healthy The main factor of beauty. Appropriate sunlight, able to move skin Certain sterols in the body turn into vitamin D. Sufficient vitamin D can promote the normal growth and development of bones and prevent rickets. Daylight can also increase people's exposure to disease The resistance makes the blood have strong bactericidal power, increases metabolism and promotes sleep. Fresh air will refresh people's spirits and energize them.

　　It is worth emphasizing that female You must pay attention to three points when swimming:

　　1. Avoid swimming before and after meals. Swimming on an empty stomach affects appetite and digestive function, and may cause dizziness and fatigue during swimming. ； Swimming with a full stomach can also affect digestion and cause stomach cramps and even vomiting, stomach ache Phenomenon.

　　2. Avoid swimming during menstruation. During menstruation, the resistance of the female reproductive system is weak, and swimming can easily allow germs to enter. Uterus , fallopian tubes, etc., causing infection.

　　3. Avoid swimming after strenuous exercise. Swimming immediately after strenuous exercise will increase the burden on the heart ； A sharp drop in body temperature can lead to weakened resistance, causing cold , pharyngitis, etc.

　　Master swimming skills to help you lose weight quickly

　　1. Use kick boards. Water toys such as kickboards, hand paddles, flippers, and lifebuoys not only help burn more calories, but also exercise the muscles of the limbs.

　　2. Travel quickly and short distances. Many people swim slowly, which consumes far less calories than swimming fast and short distances. However, swimming fast should not be continued throughout, otherwise the physical strength will be exhausted too quickly. You can do a slow swim followed by a fast swim, two slow swims followed by two fast swims, etc.

　　3. Practice in time periods. Like the training of professional swimmers, divide swimming into four sections and rest for 15-30 seconds between sections. The specific arrangement is to swim 1 round trip first, then swim 2 round trips, then swim 2 round trips, and finally swim 1 round trip, and swim quickly at the end of each section.

　　4. Go all out when swimming. Keep heart rate The maximum heart rate is about 80%. In order to ensure this standard, every time you swim for a period of time, count the number of times your pulse beats in 6 seconds against the watch. Add a "0" after it to get the heart rate for 1 minute.

　　5. Minimize rest time. Halve your rest periods during swimming until a round trip or interval is down to 10 seconds.

　　If you want to lose weight, swimming time should be more than 40 minutes each time, which is more effective.