We will go swimming in a few days, but I don't know what to pay attention to before swimming, such as whether I can eat some food before swimming or not. Please help me, thanks
First of all, from the responsibility for themselves and others perspective, suffering from severe heart disease, epilepsy, hypertension and other diseases and infectious diseases and skin diseases of the crowd is not to participate in swimming, swimming because patients may exacerbate or transmit the disease to others.
In addition, the swimming process requires whole body movement, and in water environment, heat faster, therefore, when swimming human energy consumption is very large, should be adequate intake before swimming Steamed Rice, noodles, bread and other carbohydrates and some egg, meat and other protein substances. Note that not too hungry or too full, too full to eat after swimming, affect the digestive function, prone to stomach cramps, and even vomiting, abdominal pain and other symptoms; fasting and swimming, energy storage, easy hypoglycemia, dizziness and weakness. Swimming is recommended 1~3 hours after meals.Last but not least, preparation activities are essential before starting swimming. Specific to do the following
Secondly, according to the individual character of body type, select the appropriate swimsuit, swimming trunks and swimming cap, large swimsuits may increase the resistance in the process of swimming, swimming movements, and too tight, comfort will be affected; according to the personal level of swimming, swimming glasses, ear, nose clip, floating body items etc. sports accessories, help to adapt to water environment, improve athletic performance.
1, preparation can prevent water cramps. Because the human skin temperature is generally higher than the water temperature, if you do not do the preparatory activities and jumped into the water, the skin by cold stimulation, so that all parts of the body to produce strong muscle contraction, prone to cramps, injury and other feels uncomfortable, serious, may produce a drowning accident. Preparations can warm up the muscles of the body before the water and increase the circulation of blood in the muscles, so that it can better resist the stimulation of cold water.2, preparation activities, you can adjust the status of various organs of the body, to overcome the internal organs of functional inertia. Our internal organs from the quiet state into the state of motion and the process will take some time to prepare, activities can help the nervous system, cardiovascular system and respiratory system as soon as possible, excited, gradually adapt to the movement needs, pain appears to prevent the movement of liver and spleen, is conducive to improve heart and lung function.
