Many people may not know what a hemisphere, or speedball, is. It looks like a strange half of a "Yoga ball".
Because of the physical differences between boys and girls, resulting in a difference in the weight of the elastic band training. Girls' muscle strength is worse than boys, boys in the elastic band weight-bearing exercises, we must increase their training weight, so that their fitness effect is more obvious. So how to choose the weight of the elastic band?
Resistance bands, also known as elastic bands, are used for strength training exercises. Although resistance bands come in different shapes (some with grips) and lengths, they are essentially giant rubber bands that you pull to strengthen certain muscle groups.
I have been playing soccer for more than 6 years, in my opinion, our country's amateur soccer field, because of the poor quality of the turf, in addition to tf (broken nail) spikes, wearing other spikes are like "On stilts". It is easy to slip, not to mention that, like soccer, such a fierce confrontation, fast walking and stopping sports, the choice of improper spikes, is irreversible damage to the knee.