What is the diameter of the elderly fitness soft ball in cm?

At present, the fitness soft ball commonly used by the elderly in China has a diameter of 6.7±0.2cm according to the popular equipment standard of the China Senior Citizens Sports Association, which means that it is within the range of 6.5cm to 6.9cm. The mass-produced models on the market are basically the same standard size of 6.7cm. Novices who are new to the game will not go wrong if they buy this size.

Many old comrades who often play ball may wonder why the ball borrowed from a teammate sometimes feels bigger than their own. In fact, there is no forced size restriction in the current circle, and the preferences of people with different usage habits are quite different. Many elderly men with large hands and weak grip strength prefer to use a slightly larger ball of about 7cm, which has a more solid feel and is less likely to slip when catching a high toss ball. ； However, many female golfers with small hands feel that the 6.5cm small ball fits the hand better and is more flexible when doing small movements such as looping and turning over.

When our community's Rouli team was purchasing last year, we specially ordered 20 more 7cm customized models, specially for the big brothers in the team. In the past, they used standard balls to play games, and they always slipped when throwing the ball from a distance. After changing to larger balls, they even won the third place in the team league in the district this year. Now every time they train, they hold on to their own big balls and refuse to change, saying that they feel at ease holding them.

In fact, the benchmark value of 6.7cm was originally set through repeated tests in the industry. It was based on the average palm width of the elderly in China, the general grip strength level, and the 22-24cm racket surface size of conventional soft power rackets. This size ball has the best fit with the racket surface. If it is too small, it will easily leak from the side of the racket. If it is too large, it will easily hit the racket frame when making movements. After practicing for a long time, it will easily twist the wrist. If someone pushes you a 5 or 6cm soft ball, don’t buy it. It’s for children’s interest initiation. We elderly people can easily get injured if we use it with incorrect force. If you really want to choose a non-standard model, it’s best to try it with a teammate’s ball for more than ten minutes. Once you feel comfortable with it, it’s not too late to place an order.