cheap jordans for sale link as follow:
Retro jordans for sale
Cheap jordans for sale
cheap foamposites
Cheap retro jordans
Retro jordans for sale
Data map.We all know that
need to warm up before exercise, so many people are in the habit of stretching, even under low back pressure, split fork what. But it's not really warm up, it's stretching.
= stretching warm-up, but is often confused, silly points is not clear. Today, Lao Wang will come to the science of the difference between the two and the correct way of doing it.
first talk about warm up
warm-up has two main functions:
1, stimulate the body to enter the state of movement from the calm state, increase the body temperature and heart rate;
2, reduce the viscosity of the muscle and joint injury prevention.
warm-up, literally, is to raise the body's temperature.
, our muscles can be understood by him as many rubber bands are twisted together, soft and elastic, but when the deformation exceeds its extensible range, it is easy to be torn, so the muscle is injured.
we all know that when the temperature is low, a lot of things are relatively brittle and easier to crack or break. When the temperature is high, it will be softer and more flexible. The same is true for the muscles.
theory the characteristic of muscle called the "Stickiness", specifically refers to the internal resistance of the protein molecules are muscle internal friction. Effect of temperature on the viscosity of muscle, muscle when the temperature rises, the viscosity decreases, the extensibility and elasticity increase; on the other hand, muscle temperature decreased and the viscosity is increased,. Extensibility and elasticity decrease.
is a good warm-up, which makes the muscles more flexible and stretches better, so it's not easy to get hurt.
so how is it a hot body in place? It can be judged by the sense of self, and a slight sweating body is warm. It can also be judged by the heart rate. The 60-70% that reaches the maximum heart rate after the warm-up exercise is OK.
The simple method of judging the maximum heart rate of
is: 220 - age
, for example, is 40 years old, and his heart rate is 220-40=180 times / minutes, and his warm-up heart rate should be more appropriate between 108-126 times / minutes.
usually runs a few hundred meters at a very slow speed before running, telling the body that we are going to start to exercise.
, and then do some warm-up exercises. I found a group of Nanjing Sport Institute sports human science graduate student Peng Meiying's courseware warming up action to share with you. I hope it will not be infringed.
again to talk about stretching
The effect of
stretching is summed up as follows:
1, allowing the muscles and tendons to be fully extended to ease muscle stiffness;
2, shape the muscle lines, increase the flexibility and ductility of the muscles;
3>
with the weather getting warmer, the major brands have launched their spring flower series, from the California Supra recently as the girls launched a new "2014 flower" shoes series, the series by Supra WMNS Owen, Supra WMNS and Vaider Supra WMNS Socirty II three, shoes a floral pattern to create the body of the shoe, and with white bottom, have very strong breath of spring. It is reported that this series of shoes will be sold at the Supra official store in the market recently, and the shoes will be priced at $80-105.
series of new spring and summer 2012 Vans Vault high-end line recently brought us the 2012 spring and summer series and a new Spectator LX. Spectator LX the poor hue, appearance to senior leather and fur surface splicing, the details of Bullock type trimming and leather laces with tongue, wax treatment. Design simple and elegant, the series will be on April at Vans Vault retailers sale.
Cheap air jordan 13 olive for sale online free shipping
