Floss banding, as a new and effective technique, is becoming increasingly popular in the field of sports training, sports injury prevention, and rehabilitation. Given the need for further studies on the effect of floss banding on isometric strength and neuromuscular activity, this study aims to investigate the effect of floss banding. This study was conducted on judo players with a training history of at least two years and an age range of 20-30. The test method was as follows: first, the subjects were given an isometric strength test using a dynamometer, and at the same time, the neural and muscular activity was recorded using an EMG device. Then, the floss band was wrapped according to the protocol and after that, the strength and neuromuscular activity test was taken from the subjects immediately and 20 minutes after unwrapping the floss band. The results showed that eight weeks of floss banding had no significant effect on isometric grip strength from the pre-test to the post-test (p=0.096). The test results showed that there was no significant difference between the average isometric grip strength of judo players during the measurement stages (p=0.75). There was no significant difference between the average surface electromyography activity of the FCR muscle of judo players during the measurement stages (p=0.94). There was no significant difference between the average surface electromyography activity of the FCU muscle of judo players during the measurement stages (p=0.51). According to the results, using floss bands in a single session had no significant effect on the isometric grip strength and the electromyography activity of the superficial flexor muscles of the forearm. Using floss bands as an 8-week protocol using at least two days a week had no positive effect on the isometric grip strength and the electromyography activity of the superficial flexor muscles of the forearm.