Comparison of calorie consumption For dieters, calories need to be kept in mind. A person weighing about 70 kilograms consumes about 600 kilocalories when running for 30 minutes and about 300 kilocalories when swimming (here refers to the energy consumed by high-speed swimming, and about 200 kilocalories if swimming is relaxed). Therefore, in terms of the calories consumed by exercise alone, running is slightly better.
But the effect of losing weight depends not only on the calories consumed during exercise, but also on the impact of exercise on the body. For example, from the perspective of muscle consumption, most of the muscles used for running are leg muscles. For swimmers, in addition to the legs, most of the muscles of the whole body such as the back, chest, waist and abdomen must be mobilized. Muscles will not only burn calories during exercise, but even after exercise, more muscles will keep your body at a high level of metabolism and improve the basic calorie consumption level.
Health contrast
What makes swimming famous is its benefits to the heart and circulatory system. It can not only help to clear the garbage in arteries and blood vessels, but also help to strengthen the muscle tissue of ventricles, increase the volume of heart cavities and strengthen the pumping power of the whole blood circulation system. When some toxins are removed, the function of the circulatory system is better, and the metabolic rate of the human body is improved, which will naturally help to improve the weight loss effect. Swimming can also promote the development of respiratory muscles, increase chest circumference, increase vital capacity, open more alveoli when inhaling and breathe smoothly. In addition, when swimming, water washes the skin, sweat glands and fat glands, which plays a good massage role, promotes blood circulation and makes the skin smooth and elastic.
At this point, in fact, running is also done well: studies have proved that jogging for 30 minutes every day can expand the lung volume (vital capacity) 1/3 and improve the ability of blood to combine oxygen. For those patients who are prone to osteoporosis, diabetes and hypertension, regular running has become a doctor's advice.
Security comparison
Running will increase the pressure on knee and hip joints and increase their wear rate. Improper use of shoulder joint in swimming can also cause shoulder joint wear, especially freestyle and butterfly swimming.
But for other joints of the body, the effect of swimming is contrary to that of running, and the benefits to bones can be said to be incomparable to other sports. The buoyancy of water reduces the pressure on bones, helps people to move their joints under the condition of reduced gravity, and can alleviate the symptoms of joint inflammation and pain. At the same time, the massage effect of water on joints can relax stiff joints, promote the secretion of lubricating fluid in joint cavities, reduce the friction between bones and enhance the vitality of bones.
It seems that running is going to be completely defeated by swimming, but don't forget that swimming is a certain way to keep fit. If you are a beginner, I suggest that you don't take swimming as the main way to lose weight. Not only is it difficult to persist, but it is also ineffective. Once swimming is improper or overworked, it may lead to muscle strain, joint injury, collapse, drowning and other dangers.