Max. user weight
The maximum mass that the shell of a gymnastic ball is able to withstand. The maximum user weight is closely related to the maximum load on the inflatable bladder. In the process of jumping and swinging, a user weighing 100 kg can create almost twice as much load on the fitball, for this reason, in parallel with the weight limit, manufacturers of gymnastic balls often indicate the value of the maximum load.
Surface
— Smooth. Classic balls have a smooth surface. These are universal gymnastic inflatable tubes that can be used for a press swing, push-ups, coups, stretching, etc. The smooth surface will not cling to clothes, which provides the necessary comfort during exercise. Another important advantage of gymnastic balls with a smooth surface is the gentle effect on the skin. Among the disadvantages, we note that a smooth inflatable tube can slide on the floor, which complicates the implementation of some exercises.
— Rough. The rough surface makes the gym ball more stable. Such balls practically do not slip, which allows you to perform more exercises. Among the shortcomings, one can note the susceptibility to sticking of various blockages. Dust, street dirt, threads and other rubbish will stick to a rough ball.
— Massage. The massage surface is represented by pimples. Gymnastic balls with a massage surface have an additional effect on the skin — tactile sensations of this type can be compared with massage. At the same time, the balls themselves with a massage surface practically do not slip, which means that various rolls and stretches can be safely performed on them. Of course, for untrained users, the ribbed massage surface can cause discomfort.
— Half-massage. Balls of this type combine the features of smooth and massage models — half of the ball has a smooth surface, and the second has spikes, like massage ones. The semi-massage surface make...s the gym ball a more versatile solution.
— Rings. The rings form ribs on the surface of the gymnastic ball. Such a surface resists slip well, so that the balls have increased stability on the floor. At the same time, the ribbed surface is comfortable to hold in your hands. Gymnastic balls with annular fins have a wide range of applications. They are convenient to throw and throw, can be used for swinging the press, stretching, rolling and other exercises.
— Protector. The protector increases the convenience of gripping the ball and increases the resistance of the product to mechanical stress. The protector is mainly equipped with slemballs, that is, heavy stuffed balls. Balls with a protector are well suited for all kinds of throws and throws. The rough surface of the tread can be hit on the floor with high force, nothing will happen to the ball. Additionally, with such balls, you can pump the press, squat and run. It is convenient to do push-ups on a ball with a protector, as the corrugated surface will not slip.
Diameter
The diameter of the fitball largely determines the age category of users. Gymnastic balls for adults have a diameter of 50-80 cm, while for children — about 30-50 cm.
Regarding medicine balls, the diameter of the vast majority of balls is in the range of 20-35 cm. Some manufacturers of medicine balls tie the diameter to the mass. With an increase in the weight of a sports equipment, the diameter may also increase. Additionally, the girth of the medicine ball may depend on the specific purpose of the ball. Projectiles for throws, bench press and weighting during warm-up often differ from each other in diameter.
