The surface of the professional PVC floor can be moderately deformed after impact. For example, when air wrestling or sliding, air tight mattresses with internal air and closed foam pad technology provide cushioning to reduce sports injuries.
2. Earthquake problems:
Vibration refers to the extent to which the floor is impacted and deformed. The larger the vibration range, the greater the possibility of fracture. There are two types of earthquakes: point earthquakes and regional earthquakes.
3. Vibration absorption problems:
The impulse formed in the process of exercise has an effect on the vibration of the surface of PVC floor. Floor structure must have shock absorption function, that is, the floor should have the ability to absorb shock energy. Athletes'influence on PVC sports floor is far less than that on concrete and other hard surfaces. That is to say, when the athletes jump back to the PVC floor, at least 53% of the impact force is absorbed by the PVC floor, protecting the athletes'ankles, meniscus, spinal cord and brain. No one was hurt. Its protective function also allows a person to exercise on the PVC sports floor without affecting neighbors. This is also the concept of damping, vibration deformation and tension deformation described in German DIN standard.
4. Friction coefficient:
研究表明，12%的篮球运动员在转身时受伤。运动地板的摩擦系数表明地板是摩擦过大(降低了旋转的灵活性)还是太滑(增加了滑倒的风险)。考虑到运动员的机动性和安全性，摩擦系数应在0.4 ~ 0.7之间。
Research shows that 12% of basketball players are injured when they turn around. The friction coefficient of the moving floor indicates whether the floor is too frictional (reducing the flexibility of rotation) or too slippery (increasing the risk of slipping). Considering the mobility and safety of athletes, the friction coefficient should be between 0.4 and 0.7.
The friction coefficient of professional PVC plastic floor is generally kept between this coefficient. It has enough and moderate friction force to ensure the stability of the motion, while maintaining the consistency and regularity of the friction performance in all directions of motion. Ensure flexible movement, in-situ rotation, without any obstacles.
5. Elasticity of the ball:
Basketball bounce test is to test the bounce of basketball by throwing it 6.6 feet on the floor. This data is expressed by percentage, in which the jump height of basketball on concrete floor is taken as the contrast standard, reflecting the difference of jump height. The rules of indoor ball games require sports or ground training, such as jumping action of basketball and other ball games, and the jumping coefficient of the ball. The area of the venue shall be greater than or equal to 90%. Professional PVC plastic floor has excellent resilience stability. There is no elastic dead point on the floor, and the rebound contrast coefficient can reach 98%.
6. Regression of motor energy:
This refers to the energy of the PVC floor recycled by athletes in order to improve their performance during training.
7. The rolling load problem:
Professional sports floors must meet the requirements of competition and training, such as sports basketball racks and related sports facilities. When moving, the surface and structure of the floor can not be destroyed. This is the rolling load standard and concept described by German DIN standard.