Five techniques of air volleyball and their functions

What are the five skills: catch, pass, spike, serve, block?​ Catch: prepare the knee bent into a nearly 90 degrees, feet tandem (which only in the former in the personal habits), …

Stainless steel products sheet metal and surface processing what should be paid attention to?

Stainless steel processing refers to the stainless steel with stainless steel properties for cutting, folding, bending, welding and other mechanical processing and plating, sandblasting, mirror surface treatment, get the production of …

What is the difference between the secondary card and the main card

Some friends have only one card and only one number. But some friends of the mobile phone card has the main card and deputy card, such as some friends will give …

Call badminton the "King of Sports"

Tell you with the data, called badminton "king of sports", that is absolutely worthy! Many people think that badminton is a kind of sport with little intensity, but in fact, in …

Four basic physical exercises

Continuous exercise Can take continuous exercise, we move a bit longer, a bit lower intensity. For example, you can do slow running for an hour at a time and not be …

Three types of tennis injuries are most common

Tennis, like any sport, has its share of injuries. While it is possible to suffer concussions and other contact-sports-related injuries while playing tennis, the most common injuries are either repetitive or …

Why is tennis so addictive?

In fact, any kind of exercise can be addictive, but the point of addiction is different, and the time of addiction is also different. When I played basketball in middle school, …

Why is American tennis in decline?

I don't think it's the decline of the US, but rather the rise of Europe (especially eastern Europe) that has taken the shine off us tennis. Today, for example, the WTA …

Is it necessary to wear tennis shoes when playing tennis?

This depends on financial ability, tennis skill level and the number of times you play the ball per week. If the economy is good and there are plenty of shoe cabinets, …