Is it good or bad to practice running with sandbags?

In fact, weight-bearing training such as tying sandbags at any age and any event is extremely stupid! Many people in our country are influenced by the related descriptions in the old martial arts novels on this issue, or take it for granted to imagine doing these similar weight-bearing trainings. Modern professionals engaged in competitive training believe that this training method is not desirable at all (unfortunately, many people still think it is a very effective method, and you can see many armed police tying sandbags during training). Binding sandbags not only consumes students' physical strength as soon as possible, but also has no practical significance for improving their physical strength.

Contrary to many people's imagination, weight-bearing training such as tying sandbags is extremely limited to improve students' strength. Real strength training needs to be relaxed after good muscle stimulation-the so-called muscle retraction is the most effective training to improve muscle strength. Weight-bearing training, such as tying sandbags, will make muscles unable to recover effectively, thus restricting the growth of muscle strength. Long-term training may even make muscle fibers inert.

It's a joke to tie sandbags and other weight-bearing training to improve jumping ability! Binding sandbags will make muscles stiff and muscle fibers lose elasticity. Many people imagine (or hear or read in books) that sandbags can be tied to their legs and taken off, which is simply a huge fallacy. Professional athletes, especially jumping events, use barbells such as elastic rubber bands to train leg strength (jumping ability), and it is absolutely forbidden to tie sandbags to improve jumping ability.